/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/hardness-nfm22/hardness_operatoramount_amount10_file-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 23:37:38,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 23:37:38,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 23:37:38,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 23:37:38,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 23:37:38,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 23:37:38,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 23:37:38,212 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 23:37:38,213 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 23:37:38,216 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 23:37:38,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 23:37:38,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 23:37:38,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 23:37:38,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 23:37:38,218 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 23:37:38,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 23:37:38,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 23:37:38,218 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 23:37:38,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 23:37:38,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 23:37:38,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 23:37:38,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 23:37:38,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 23:37:38,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 23:37:38,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 23:37:38,220 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 23:37:38,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 23:37:38,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 23:37:38,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 23:37:38,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 23:37:38,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 23:37:38,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 23:37:38,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:37:38,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 23:37:38,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 23:37:38,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 23:37:38,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 23:37:38,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 23:37:38,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 23:37:38,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 23:37:38,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 23:37:38,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 23:37:38,224 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 23:37:38,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 23:37:38,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 23:37:38,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 23:37:38,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 23:37:38,457 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 23:37:38,460 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 23:37:38,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i [2023-12-20 23:37:39,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 23:37:39,744 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 23:37:39,744 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i [2023-12-20 23:37:39,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1377b22b5/41a47a7869834c67905b01336ed16cfc/FLAGb91aff220 [2023-12-20 23:37:39,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1377b22b5/41a47a7869834c67905b01336ed16cfc [2023-12-20 23:37:39,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 23:37:39,765 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 23:37:39,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 23:37:39,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 23:37:39,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 23:37:39,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486a39df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39, skipping insertion in model container [2023-12-20 23:37:39,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 23:37:39,887 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i[915,928] [2023-12-20 23:37:39,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:37:39,919 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 23:37:39,926 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i[915,928] [2023-12-20 23:37:39,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 23:37:39,944 INFO L206 MainTranslator]: Completed translation [2023-12-20 23:37:39,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39 WrapperNode [2023-12-20 23:37:39,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 23:37:39,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 23:37:39,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 23:37:39,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 23:37:39,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,970 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2023-12-20 23:37:39,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 23:37:39,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 23:37:39,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 23:37:39,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 23:37:39,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,990 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]. [2023-12-20 23:37:39,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:39,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:40,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:40,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 23:37:40,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 23:37:40,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 23:37:40,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 23:37:40,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (1/1) ... [2023-12-20 23:37:40,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 23:37:40,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 23:37:40,068 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) [2023-12-20 23:37:40,086 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 [2023-12-20 23:37:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 23:37:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 23:37:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 23:37:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 23:37:40,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 23:37:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 23:37:40,143 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 23:37:40,144 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 23:37:40,266 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 23:37:40,291 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 23:37:40,291 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 23:37:40,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:37:40 BoogieIcfgContainer [2023-12-20 23:37:40,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 23:37:40,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 23:37:40,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 23:37:40,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 23:37:40,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:37:39" (1/3) ... [2023-12-20 23:37:40,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8cdc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:37:40, skipping insertion in model container [2023-12-20 23:37:40,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:37:39" (2/3) ... [2023-12-20 23:37:40,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8cdc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:37:40, skipping insertion in model container [2023-12-20 23:37:40,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:37:40" (3/3) ... [2023-12-20 23:37:40,299 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-82.i [2023-12-20 23:37:40,310 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 23:37:40,310 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 23:37:40,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 23:37:40,353 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;@744d642c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 23:37:40,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 23:37:40,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-20 23:37:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 23:37:40,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:37:40,363 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:37:40,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:37:40,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:37:40,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1027765869, now seen corresponding path program 1 times [2023-12-20 23:37:40,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:37:40,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781129938] [2023-12-20 23:37:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:37:40,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:37:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:37:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:37:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:37:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:37:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:37:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:37:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:37:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:37:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:37:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:37:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:37:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:37:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-20 23:37:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:37:40,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781129938] [2023-12-20 23:37:40,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781129938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:37:40,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:37:40,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 23:37:40,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35182523] [2023-12-20 23:37:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:37:40,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 23:37:40,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:37:40,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 23:37:40,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:37:40,639 INFO L87 Difference]: Start difference. First operand has 34 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-20 23:37:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:37:40,703 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2023-12-20 23:37:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 23:37:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 72 [2023-12-20 23:37:40,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:37:40,716 INFO L225 Difference]: With dead ends: 65 [2023-12-20 23:37:40,716 INFO L226 Difference]: Without dead ends: 32 [2023-12-20 23:37:40,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 23:37:40,720 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 23:37:40,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:37:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-20 23:37:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-20 23:37:40,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-20 23:37:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2023-12-20 23:37:40,746 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 72 [2023-12-20 23:37:40,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:37:40,747 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-12-20 23:37:40,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-20 23:37:40,747 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-12-20 23:37:40,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 23:37:40,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:37:40,749 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:37:40,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 23:37:40,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:37:40,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:37:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash 619471251, now seen corresponding path program 1 times [2023-12-20 23:37:40,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:37:40,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474811514] [2023-12-20 23:37:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:37:40,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:37:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:37:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:37:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:37:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:37:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:37:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:37:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:37:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:37:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:37:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:37:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:37:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:37:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:41,198 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-20 23:37:41,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:37:41,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474811514] [2023-12-20 23:37:41,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474811514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:37:41,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:37:41,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 23:37:41,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258319619] [2023-12-20 23:37:41,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:37:41,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 23:37:41,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:37:41,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 23:37:41,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 23:37:41,203 INFO L87 Difference]: Start difference. First operand 32 states and 46 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:41,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:37:41,275 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-12-20 23:37:41,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 23:37:41,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 72 [2023-12-20 23:37:41,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:37:41,279 INFO L225 Difference]: With dead ends: 38 [2023-12-20 23:37:41,279 INFO L226 Difference]: Without dead ends: 36 [2023-12-20 23:37:41,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 23:37:41,281 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 4 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 23:37:41,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:37:41,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-20 23:37:41,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2023-12-20 23:37:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-20 23:37:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2023-12-20 23:37:41,295 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 72 [2023-12-20 23:37:41,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:37:41,298 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2023-12-20 23:37:41,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-12-20 23:37:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 23:37:41,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:37:41,300 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:37:41,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 23:37:41,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:37:41,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:37:41,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2023907769, now seen corresponding path program 1 times [2023-12-20 23:37:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:37:41,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564384640] [2023-12-20 23:37:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:37:41,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:37:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:37:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:37:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:37:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:37:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:37:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:37:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:37:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:37:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:37:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:37:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:37:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:37:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-20 23:37:44,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:37:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564384640] [2023-12-20 23:37:44,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564384640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:37:44,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:37:44,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 23:37:44,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999190096] [2023-12-20 23:37:44,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:37:44,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 23:37:44,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:37:44,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 23:37:44,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 23:37:44,295 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:37:44,395 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2023-12-20 23:37:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 23:37:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 73 [2023-12-20 23:37:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:37:44,396 INFO L225 Difference]: With dead ends: 42 [2023-12-20 23:37:44,396 INFO L226 Difference]: Without dead ends: 40 [2023-12-20 23:37:44,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 23:37:44,397 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 15 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 23:37:44,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 144 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 23:37:44,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-20 23:37:44,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2023-12-20 23:37:44,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-20 23:37:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2023-12-20 23:37:44,402 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 73 [2023-12-20 23:37:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:37:44,402 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2023-12-20 23:37:44,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-12-20 23:37:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 23:37:44,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 23:37:44,404 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:37:44,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 23:37:44,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 23:37:44,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 23:37:44,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1692525012, now seen corresponding path program 1 times [2023-12-20 23:37:44,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 23:37:44,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407027500] [2023-12-20 23:37:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 23:37:44,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 23:37:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 23:37:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 23:37:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 23:37:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 23:37:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 23:37:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 23:37:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 23:37:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 23:37:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 23:37:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 23:37:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 23:37:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 23:37:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 23:37:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-20 23:37:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 23:37:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407027500] [2023-12-20 23:37:44,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407027500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 23:37:44,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 23:37:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 23:37:44,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610944458] [2023-12-20 23:37:44,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 23:37:44,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 23:37:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 23:37:44,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 23:37:44,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 23:37:44,587 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:44,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 23:37:44,716 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-12-20 23:37:44,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 23:37:44,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-12-20 23:37:44,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 23:37:44,717 INFO L225 Difference]: With dead ends: 44 [2023-12-20 23:37:44,717 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 23:37:44,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-20 23:37:44,718 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 23:37:44,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 176 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 23:37:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 23:37:44,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 23:37:44,719 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) [2023-12-20 23:37:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 23:37:44,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2023-12-20 23:37:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 23:37:44,719 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 23:37:44,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-20 23:37:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 23:37:44,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 23:37:44,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 23:37:44,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 23:37:44,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 23:37:44,736 INFO L902 garLoopResultBuilder]: At program point L64(line 64) the Hoare annotation is: true [2023-12-20 23:37:44,736 INFO L902 garLoopResultBuilder]: At program point L64-1(line 64) the Hoare annotation is: true [2023-12-20 23:37:44,736 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-12-20 23:37:44,736 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-12-20 23:37:44,736 INFO L902 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: true [2023-12-20 23:37:44,736 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-20 23:37:44,736 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-20 23:37:44,736 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-20 23:37:44,736 INFO L902 garLoopResultBuilder]: At program point L77-2(lines 77 83) the Hoare annotation is: true [2023-12-20 23:37:44,736 INFO L899 garLoopResultBuilder]: For program point L77-3(lines 77 83) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 44) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 46) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L65(lines 47 66) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L902 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: true [2023-12-20 23:37:44,737 INFO L902 garLoopResultBuilder]: At program point L61-1(line 61) the Hoare annotation is: true [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L902 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: true [2023-12-20 23:37:44,737 INFO L902 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: true [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 45) no Hoare annotation was computed. [2023-12-20 23:37:44,737 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-20 23:37:44,738 INFO L902 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: true [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L902 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: true [2023-12-20 23:37:44,738 INFO L902 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: true [2023-12-20 23:37:44,738 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-20 23:37:44,738 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-20 23:37:44,740 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-20 23:37:44,741 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 23:37:44,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 11:37:44 BoogieIcfgContainer [2023-12-20 23:37:44,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 23:37:44,748 INFO L158 Benchmark]: Toolchain (without parser) took 4982.42ms. Allocated memory was 291.5MB in the beginning and 533.7MB in the end (delta: 242.2MB). Free memory was 241.4MB in the beginning and 480.7MB in the end (delta: -239.4MB). Peak memory consumption was 3.4MB. Max. memory is 8.0GB. [2023-12-20 23:37:44,748 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:37:44,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.75ms. Allocated memory is still 291.5MB. Free memory was 240.8MB in the beginning and 229.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-20 23:37:44,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.72ms. Allocated memory is still 291.5MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 23:37:44,748 INFO L158 Benchmark]: Boogie Preprocessor took 30.43ms. Allocated memory is still 291.5MB. Free memory was 226.7MB in the beginning and 224.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 23:37:44,748 INFO L158 Benchmark]: RCFGBuilder took 289.57ms. Allocated memory is still 291.5MB. Free memory was 224.1MB in the beginning and 209.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-20 23:37:44,749 INFO L158 Benchmark]: TraceAbstraction took 4453.61ms. Allocated memory was 291.5MB in the beginning and 533.7MB in the end (delta: 242.2MB). Free memory was 208.3MB in the beginning and 480.7MB in the end (delta: -272.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:37:44,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 176.75ms. Allocated memory is still 291.5MB. Free memory was 240.8MB in the beginning and 229.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.72ms. Allocated memory is still 291.5MB. Free memory was 229.3MB in the beginning and 227.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.43ms. Allocated memory is still 291.5MB. Free memory was 226.7MB in the beginning and 224.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 289.57ms. Allocated memory is still 291.5MB. Free memory was 224.1MB in the beginning and 209.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4453.61ms. Allocated memory was 291.5MB in the beginning and 533.7MB in the end (delta: 242.2MB). Free memory was 208.3MB in the beginning and 480.7MB in the end (delta: -272.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 476 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 306 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 170 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 37 PreInvPairs, 53 NumberOfFragments, 14 HoareAnnotationTreeSize, 37 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1056/1056 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: 77]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-20 23:37:44,779 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...