/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:32:50,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:32:50,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 10:32:50,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:32:50,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:32:50,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:32:50,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:32:50,684 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:32:50,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:32:50,687 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:32:50,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:32:50,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:32:50,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:32:50,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:32:50,689 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:32:50,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:32:50,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:32:50,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:32:50,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:32:50,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:32:50,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:32:50,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:32:50,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:32:50,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:32:50,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:32:50,691 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:32:50,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:32:50,691 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:32:50,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:32:50,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:32:50,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:32:50,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:32:50,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:32:50,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:32:50,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:32:50,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:32:50,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:32:50,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:32:50,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:32:50,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:32:50,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:32:50,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:32:50,889 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:32:50,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2023-12-21 10:32:51,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:32:52,038 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:32:52,039 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c [2023-12-21 10:32:52,043 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f25102ab/c55674cdae3e4a248e6b4d4ebfcadf58/FLAG05bbebfae [2023-12-21 10:32:52,055 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f25102ab/c55674cdae3e4a248e6b4d4ebfcadf58 [2023-12-21 10:32:52,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:32:52,058 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:32:52,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:32:52,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:32:52,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:32:52,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772faaf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52, skipping insertion in model container [2023-12-21 10:32:52,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,080 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:32:52,170 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c[439,452] [2023-12-21 10:32:52,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:32:52,185 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:32:52,193 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c[439,452] [2023-12-21 10:32:52,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:32:52,204 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:32:52,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52 WrapperNode [2023-12-21 10:32:52,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:32:52,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:32:52,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:32:52,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:32:52,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,222 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-12-21 10:32:52,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:32:52,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:32:52,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:32:52,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:32:52,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,237 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2023-12-21 10:32:52,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:32:52,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:32:52,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:32:52,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:32:52,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (1/1) ... [2023-12-21 10:32:52,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:32:52,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:32:52,270 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) [2023-12-21 10:32:52,298 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 [2023-12-21 10:32:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:32:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-12-21 10:32:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-12-21 10:32:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:32:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 10:32:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 10:32:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-12-21 10:32:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-12-21 10:32:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 10:32:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 10:32:52,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:32:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:32:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 10:32:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 10:32:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 10:32:52,376 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:32:52,379 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:32:52,454 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:32:52,470 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:32:52,471 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 10:32:52,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:32:52 BoogieIcfgContainer [2023-12-21 10:32:52,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:32:52,472 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:32:52,472 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:32:52,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:32:52,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:32:52" (1/3) ... [2023-12-21 10:32:52,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a98a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:32:52, skipping insertion in model container [2023-12-21 10:32:52,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:32:52" (2/3) ... [2023-12-21 10:32:52,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a98a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:32:52, skipping insertion in model container [2023-12-21 10:32:52,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:32:52" (3/3) ... [2023-12-21 10:32:52,476 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2023-12-21 10:32:52,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:32:52,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:32:52,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:32:52,525 INFO L357 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, mHoare=true, 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;@529ceeed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:32:52,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:32:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-21 10:32:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-21 10:32:52,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:32:52,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-21 10:32:52,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:32:52,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:32:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1859053861, now seen corresponding path program 1 times [2023-12-21 10:32:52,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:32:52,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349358079] [2023-12-21 10:32:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:32:52,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:32:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:32:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:52,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:32:52,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349358079] [2023-12-21 10:32:52,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349358079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:32:52,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:32:52,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 10:32:52,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899294312] [2023-12-21 10:32:52,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:32:52,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:32:52,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:32:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:32:52,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 10:32:52,913 INFO L87 Difference]: Start difference. First operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:32:52,960 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-12-21 10:32:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:32:52,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-12-21 10:32:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:32:52,971 INFO L225 Difference]: With dead ends: 28 [2023-12-21 10:32:52,971 INFO L226 Difference]: Without dead ends: 13 [2023-12-21 10:32:52,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 10:32:52,975 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:32:52,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:32:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-12-21 10:32:52,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-12-21 10:32:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-21 10:32:52,994 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2023-12-21 10:32:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:32:52,994 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-12-21 10:32:52,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-21 10:32:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-21 10:32:52,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:32:52,995 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:32:52,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 10:32:52,995 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:32:52,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:32:52,996 INFO L85 PathProgramCache]: Analyzing trace with hash -602700150, now seen corresponding path program 1 times [2023-12-21 10:32:52,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:32:52,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725127186] [2023-12-21 10:32:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:32:52,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:32:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:32:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:53,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:32:53,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725127186] [2023-12-21 10:32:53,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725127186] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:32:53,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646737552] [2023-12-21 10:32:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:32:53,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:32:53,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:32:53,240 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) [2023-12-21 10:32:53,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 10:32:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:32:53,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-21 10:32:53,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:32:53,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 10:32:53,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-12-21 10:32:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:53,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:32:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:53,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646737552] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:32:53,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:32:53,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2023-12-21 10:32:53,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943764078] [2023-12-21 10:32:53,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:32:53,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 10:32:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:32:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 10:32:53,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-12-21 10:32:53,556 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:32:53,711 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2023-12-21 10:32:53,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 10:32:53,712 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-21 10:32:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:32:53,712 INFO L225 Difference]: With dead ends: 27 [2023-12-21 10:32:53,712 INFO L226 Difference]: Without dead ends: 23 [2023-12-21 10:32:53,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2023-12-21 10:32:53,713 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:32:53,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:32:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-12-21 10:32:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-12-21 10:32:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-12-21 10:32:53,717 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 11 [2023-12-21 10:32:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:32:53,717 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-12-21 10:32:53,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 11 states have internal predecessors, (17), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-12-21 10:32:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-21 10:32:53,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:32:53,718 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-12-21 10:32:53,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 10:32:53,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:32:53,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:32:53,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:32:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1453417322, now seen corresponding path program 2 times [2023-12-21 10:32:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:32:53,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625342352] [2023-12-21 10:32:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:32:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:32:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:32:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:54,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:32:54,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625342352] [2023-12-21 10:32:54,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625342352] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:32:54,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279392305] [2023-12-21 10:32:54,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 10:32:54,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:32:54,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:32:54,293 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) [2023-12-21 10:32:54,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 10:32:54,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 10:32:54,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 10:32:54,364 WARN L260 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 87 conjunts are in the unsatisfiable core [2023-12-21 10:32:54,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:32:54,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 10:32:54,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-12-21 10:32:54,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-12-21 10:32:54,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-12-21 10:32:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:54,495 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:32:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:54,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279392305] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:32:54,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:32:54,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 17] total 37 [2023-12-21 10:32:54,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734255143] [2023-12-21 10:32:54,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:32:54,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-21 10:32:54,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:32:54,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-21 10:32:54,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 10:32:54,789 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:32:55,135 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2023-12-21 10:32:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-21 10:32:55,135 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-21 10:32:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:32:55,136 INFO L225 Difference]: With dead ends: 47 [2023-12-21 10:32:55,136 INFO L226 Difference]: Without dead ends: 43 [2023-12-21 10:32:55,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=443, Invalid=2749, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 10:32:55,138 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 31 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:32:55,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 28 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:32:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-21 10:32:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-12-21 10:32:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2023-12-21 10:32:55,143 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 21 [2023-12-21 10:32:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:32:55,143 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2023-12-21 10:32:55,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 21 states have internal predecessors, (33), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2023-12-21 10:32:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-21 10:32:55,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:32:55,144 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2023-12-21 10:32:55,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 10:32:55,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-21 10:32:55,348 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:32:55,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:32:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1048095446, now seen corresponding path program 3 times [2023-12-21 10:32:55,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:32:55,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535900294] [2023-12-21 10:32:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:32:55,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:32:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:32:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 10:32:56,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:32:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535900294] [2023-12-21 10:32:56,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535900294] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:32:56,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709823368] [2023-12-21 10:32:56,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 10:32:56,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:32:56,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:32:56,200 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) [2023-12-21 10:32:56,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 10:32:56,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-21 10:32:56,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 10:32:56,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-21 10:32:56,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:32:56,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-21 10:32:56,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-12-21 10:32:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-21 10:32:56,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:32:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-21 10:32:56,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709823368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:32:56,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:32:56,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 9, 9] total 42 [2023-12-21 10:32:56,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783685259] [2023-12-21 10:32:56,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:32:56,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-21 10:32:56,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:32:56,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-21 10:32:56,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 10:32:56,588 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:57,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:32:57,151 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2023-12-21 10:32:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-21 10:32:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-12-21 10:32:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:32:57,151 INFO L225 Difference]: With dead ends: 49 [2023-12-21 10:32:57,151 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 10:32:57,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=683, Invalid=3873, Unknown=0, NotChecked=0, Total=4556 [2023-12-21 10:32:57,154 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 39 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:32:57,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 9 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:32:57,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 10:32:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 10:32:57,154 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) [2023-12-21 10:32:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 10:32:57,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2023-12-21 10:32:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:32:57,155 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 10:32:57,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.25) internal successors, (40), 25 states have internal predecessors, (40), 18 states have call successors, (20), 18 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 10:32:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 10:32:57,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 10:32:57,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 10:32:57,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 10:32:57,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:32:57,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 10:32:57,656 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 11 20) no Hoare annotation was computed. [2023-12-21 10:32:57,656 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2023-12-21 10:32:57,656 INFO L899 garLoopResultBuilder]: For program point fooErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2023-12-21 10:32:57,656 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 19) no Hoare annotation was computed. [2023-12-21 10:32:57,657 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse1 (select (select |#memory_int#1| foo_~p.base) foo_~p.offset)) (.cse2 (select (select |old(#memory_int#1)| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (and (<= .cse0 15) (<= .cse1 15)) (< 15 .cse2)) (or (and (= .cse1 10) (= .cse0 10)) (not (= .cse2 10))) (or (and (<= .cse1 19) (<= .cse0 20)) (< 20 .cse2)) (or (< 13 .cse2) (and (<= .cse1 13) (<= .cse0 13))) (or (<= .cse0 17) (< 17 .cse2)) (or (< 11 .cse2) (and (<= .cse0 11) (<= .cse1 11))) (or (and (<= .cse1 12) (<= .cse0 12)) (< 12 .cse2)) (or (< 16 .cse2) (and (<= .cse0 16) (<= .cse1 16))) (or (and (<= .cse0 14) (<= .cse1 14)) (< 14 .cse2)))) [2023-12-21 10:32:57,657 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2023-12-21 10:32:57,657 INFO L899 garLoopResultBuilder]: For program point L12-1(lines 11 20) no Hoare annotation was computed. [2023-12-21 10:32:57,657 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 20) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int#1)| |foo_#in~p.base|) |foo_#in~p.offset|)) (.cse1 (select (select |#memory_int#1| |foo_#in~p.base|) |foo_#in~p.offset|))) (and (or (not (= .cse0 10)) (= .cse1 10)) (or (<= .cse1 16) (< 16 .cse0)) (or (< 12 .cse0) (<= .cse1 12)) (or (< 11 .cse0) (<= .cse1 11)) (or (<= .cse1 17) (< 17 .cse0)) (or (<= .cse1 14) (< 14 .cse0)) (or (<= .cse1 15) (< 15 .cse0)) (or (< 13 .cse0) (<= .cse1 13)) (or (< 20 .cse0) (<= .cse1 20)))) [2023-12-21 10:32:57,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 10:32:57,657 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (= (select (select |#memory_int#1| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) [2023-12-21 10:32:57,657 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-12-21 10:32:57,657 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 10:32:57,658 INFO L899 garLoopResultBuilder]: For program point plusFINAL(lines 6 9) no Hoare annotation was computed. [2023-12-21 10:32:57,658 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 6 9) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int#1)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int#1| |plus_#in~p.base|) |plus_#in~p.offset|))) (and (or (< 13 .cse0) (<= .cse1 13)) (or (< 15 .cse0) (<= .cse1 15)) (or (<= .cse1 16) (< 16 .cse0)) (or (< 19 .cse0) (<= .cse1 19)) (or (< 11 .cse0) (<= .cse1 11)) (or (not (= .cse0 10)) (= .cse1 10)) (or (< 12 .cse0) (<= .cse1 12)) (or (< 14 .cse0) (<= .cse1 14)))) [2023-12-21 10:32:57,658 INFO L899 garLoopResultBuilder]: For program point plusEXIT(lines 6 9) no Hoare annotation was computed. [2023-12-21 10:32:57,658 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (let ((.cse0 (select (select |old(#memory_int#1)| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse2 (select (select |#memory_int#1| |plus_#in~p.base|) |plus_#in~p.offset|)) (.cse1 (select (select |#memory_int#1| plus_~p.base) plus_~p.offset))) (and (or (not (= .cse0 10)) (and (<= .cse1 11) (<= .cse2 11))) (or (< 15 .cse0) (and (<= .cse2 16) (<= .cse1 16))) (or (< 16 .cse0) (and (<= .cse1 17) (<= .cse2 19))) (or (< 13 .cse0) (and (<= .cse1 14) (<= .cse2 14))) (or (< 19 .cse0) (<= .cse1 20)) (or (and (<= .cse1 13) (<= .cse2 13)) (< 12 .cse0)) (or (< 14 .cse0) (and (<= .cse1 15) (<= .cse2 15))) (or (< 11 .cse0) (and (<= .cse2 12) (<= .cse1 12))))) [2023-12-21 10:32:57,660 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-12-21 10:32:57,661 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 10:32:57,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:32:57 BoogieIcfgContainer [2023-12-21 10:32:57,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 10:32:57,664 INFO L158 Benchmark]: Toolchain (without parser) took 5605.72ms. Allocated memory was 235.9MB in the beginning and 290.5MB in the end (delta: 54.5MB). Free memory was 182.5MB in the beginning and 89.0MB in the end (delta: 93.4MB). Peak memory consumption was 149.0MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,664 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 155.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 10:32:57,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.27ms. Allocated memory is still 235.9MB. Free memory was 182.1MB in the beginning and 172.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.72ms. Allocated memory is still 235.9MB. Free memory was 172.0MB in the beginning and 170.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,664 INFO L158 Benchmark]: Boogie Preprocessor took 19.72ms. Allocated memory is still 235.9MB. Free memory was 170.5MB in the beginning and 168.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,665 INFO L158 Benchmark]: RCFGBuilder took 227.96ms. Allocated memory is still 235.9MB. Free memory was 168.5MB in the beginning and 157.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,665 INFO L158 Benchmark]: TraceAbstraction took 5191.10ms. Allocated memory was 235.9MB in the beginning and 290.5MB in the end (delta: 54.5MB). Free memory was 156.9MB in the beginning and 89.0MB in the end (delta: 67.9MB). Peak memory consumption was 122.8MB. Max. memory is 8.0GB. [2023-12-21 10:32:57,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory was 145.8MB in the beginning and 145.7MB in the end (delta: 155.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 144.27ms. Allocated memory is still 235.9MB. Free memory was 182.1MB in the beginning and 172.0MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.72ms. Allocated memory is still 235.9MB. Free memory was 172.0MB in the beginning and 170.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.72ms. Allocated memory is still 235.9MB. Free memory was 170.5MB in the beginning and 168.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 227.96ms. Allocated memory is still 235.9MB. Free memory was 168.5MB in the beginning and 157.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5191.10ms. Allocated memory was 235.9MB in the beginning and 290.5MB in the end (delta: 54.5MB). Free memory was 156.9MB in the beginning and 89.0MB in the end (delta: 67.9MB). Peak memory consumption was 122.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 26 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=3, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 37 PreInvPairs, 37 NumberOfFragments, 645 HoareAnnotationTreeSize, 37 FormulaSimplifications, 232 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FormulaSimplificationsInter, 184 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 152 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 215 ConstructedInterpolants, 0 QuantifiedInterpolants, 1065 SizeOfPredicates, 42 NumberOfNonLiveVariables, 366 ConjunctsInSsa, 170 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 236/426 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 RESULT: Ultimate proved your program to be correct! [2023-12-21 10:32:57,686 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...