/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 22:59:54,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 22:59:54,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-25 22:59:54,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 22:59:54,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 22:59:54,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 22:59:54,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 22:59:54,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 22:59:54,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 22:59:54,566 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 22:59:54,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 22:59:54,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 22:59:54,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 22:59:54,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 22:59:54,568 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 22:59:54,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 22:59:54,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 22:59:54,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 22:59:54,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 22:59:54,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 22:59:54,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 22:59:54,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 22:59:54,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 22:59:54,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 22:59:54,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 22:59:54,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 22:59:54,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 22:59:54,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 22:59:54,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 22:59:54,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 22:59:54,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 22:59:54,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 22:59:54,574 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 22:59:54,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 22:59:54,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 22:59:54,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 22:59:54,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 22:59:54,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 22:59:54,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 22:59:54,792 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 22:59:54,792 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 22:59:54,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c [2023-12-25 22:59:55,844 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 22:59:56,001 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 22:59:56,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c [2023-12-25 22:59:56,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/932d055b4/de51664ecfce4024a68abbc5d89ec1e7/FLAGf9b388337 [2023-12-25 22:59:56,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/932d055b4/de51664ecfce4024a68abbc5d89ec1e7 [2023-12-25 22:59:56,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 22:59:56,030 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 22:59:56,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 22:59:56,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 22:59:56,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 22:59:56,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3130b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56, skipping insertion in model container [2023-12-25 22:59:56,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 22:59:56,174 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c[1266,1279] [2023-12-25 22:59:56,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 22:59:56,225 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 22:59:56,232 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c[1266,1279] [2023-12-25 22:59:56,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 22:59:56,261 INFO L206 MainTranslator]: Completed translation [2023-12-25 22:59:56,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56 WrapperNode [2023-12-25 22:59:56,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 22:59:56,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 22:59:56,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 22:59:56,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 22:59:56,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,313 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 354 [2023-12-25 22:59:56,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 22:59:56,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 22:59:56,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 22:59:56,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 22:59:56,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,342 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]. [2023-12-25 22:59:56,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 22:59:56,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 22:59:56,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 22:59:56,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 22:59:56,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (1/1) ... [2023-12-25 22:59:56,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 22:59:56,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 22:59:56,393 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) [2023-12-25 22:59:56,426 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 [2023-12-25 22:59:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 22:59:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 22:59:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 22:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 22:59:56,522 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 22:59:56,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 22:59:56,870 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 22:59:56,896 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 22:59:56,896 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 22:59:56,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:59:56 BoogieIcfgContainer [2023-12-25 22:59:56,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 22:59:56,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 22:59:56,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 22:59:56,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 22:59:56,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 10:59:56" (1/3) ... [2023-12-25 22:59:56,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d25aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:59:56, skipping insertion in model container [2023-12-25 22:59:56,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 10:59:56" (2/3) ... [2023-12-25 22:59:56,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d25aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 10:59:56, skipping insertion in model container [2023-12-25 22:59:56,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 10:59:56" (3/3) ... [2023-12-25 22:59:56,903 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p18.c [2023-12-25 22:59:56,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 22:59:56,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 22:59:56,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 22:59:56,951 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;@8a721a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 22:59:56,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 22:59:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 46 states have internal predecessors, (75), 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) [2023-12-25 22:59:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-25 22:59:56,961 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:56,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:56,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:56,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash 849175086, now seen corresponding path program 1 times [2023-12-25 22:59:56,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:56,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075548373] [2023-12-25 22:59:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:56,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:57,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:57,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075548373] [2023-12-25 22:59:57,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075548373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:57,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:57,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:57,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505924852] [2023-12-25 22:59:57,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:57,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 22:59:57,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:57,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 22:59:57,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 22:59:57,434 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 46 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-12-25 22:59:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:57,493 INFO L93 Difference]: Finished difference Result 78 states and 126 transitions. [2023-12-25 22:59:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 22:59:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-12-25 22:59:57,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:57,501 INFO L225 Difference]: With dead ends: 78 [2023-12-25 22:59:57,501 INFO L226 Difference]: Without dead ends: 47 [2023-12-25 22:59:57,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 22:59:57,505 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:57,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 199 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-25 22:59:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-12-25 22:59:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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) [2023-12-25 22:59:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2023-12-25 22:59:57,534 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 73 transitions. Word has length 24 [2023-12-25 22:59:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:57,535 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 73 transitions. [2023-12-25 22:59:57,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-12-25 22:59:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2023-12-25 22:59:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-25 22:59:57,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:57,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:57,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 22:59:57,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:57,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 556408540, now seen corresponding path program 1 times [2023-12-25 22:59:57,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307919983] [2023-12-25 22:59:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:57,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:57,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307919983] [2023-12-25 22:59:57,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307919983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:57,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:57,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:57,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209388131] [2023-12-25 22:59:57,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:57,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 22:59:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 22:59:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 22:59:57,710 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-12-25 22:59:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:57,739 INFO L93 Difference]: Finished difference Result 81 states and 124 transitions. [2023-12-25 22:59:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 22:59:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-12-25 22:59:57,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:57,742 INFO L225 Difference]: With dead ends: 81 [2023-12-25 22:59:57,742 INFO L226 Difference]: Without dead ends: 50 [2023-12-25 22:59:57,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 22:59:57,743 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:57,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 197 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:57,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-25 22:59:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2023-12-25 22:59:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.5625) internal successors, (75), 48 states have internal predecessors, (75), 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) [2023-12-25 22:59:57,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 75 transitions. [2023-12-25 22:59:57,753 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 75 transitions. Word has length 25 [2023-12-25 22:59:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:57,753 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 75 transitions. [2023-12-25 22:59:57,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-12-25 22:59:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2023-12-25 22:59:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-25 22:59:57,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:57,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:57,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 22:59:57,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:57,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash -143424250, now seen corresponding path program 1 times [2023-12-25 22:59:57,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:57,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459979160] [2023-12-25 22:59:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:57,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:57,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459979160] [2023-12-25 22:59:57,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459979160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:57,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:57,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643802281] [2023-12-25 22:59:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:57,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 22:59:57,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 22:59:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 22:59:57,989 INFO L87 Difference]: Start difference. First operand 49 states and 75 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-25 22:59:58,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:58,035 INFO L93 Difference]: Finished difference Result 89 states and 135 transitions. [2023-12-25 22:59:58,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 22:59:58,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-25 22:59:58,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:58,039 INFO L225 Difference]: With dead ends: 89 [2023-12-25 22:59:58,039 INFO L226 Difference]: Without dead ends: 56 [2023-12-25 22:59:58,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 22:59:58,043 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 85 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:58,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 140 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:58,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-25 22:59:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2023-12-25 22:59:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 48 states have internal predecessors, (74), 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) [2023-12-25 22:59:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions. [2023-12-25 22:59:58,048 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 26 [2023-12-25 22:59:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:58,048 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 74 transitions. [2023-12-25 22:59:58,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-25 22:59:58,049 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2023-12-25 22:59:58,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-25 22:59:58,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:58,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:58,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 22:59:58,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:58,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:58,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1446934978, now seen corresponding path program 1 times [2023-12-25 22:59:58,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:58,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097604442] [2023-12-25 22:59:58,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:58,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:58,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:58,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097604442] [2023-12-25 22:59:58,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097604442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:58,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:58,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 22:59:58,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88766281] [2023-12-25 22:59:58,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:58,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 22:59:58,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:58,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 22:59:58,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-25 22:59:58,313 INFO L87 Difference]: Start difference. First operand 49 states and 74 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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) [2023-12-25 22:59:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:58,471 INFO L93 Difference]: Finished difference Result 157 states and 231 transitions. [2023-12-25 22:59:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-25 22:59:58,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-25 22:59:58,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:58,473 INFO L225 Difference]: With dead ends: 157 [2023-12-25 22:59:58,473 INFO L226 Difference]: Without dead ends: 124 [2023-12-25 22:59:58,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-25 22:59:58,474 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 315 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:58,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 415 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 22:59:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-25 22:59:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 57. [2023-12-25 22:59:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 56 states have internal predecessors, (85), 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) [2023-12-25 22:59:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2023-12-25 22:59:58,478 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 27 [2023-12-25 22:59:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:58,478 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 85 transitions. [2023-12-25 22:59:58,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 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) [2023-12-25 22:59:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2023-12-25 22:59:58,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-25 22:59:58,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:58,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:58,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 22:59:58,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:58,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:58,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1053907968, now seen corresponding path program 1 times [2023-12-25 22:59:58,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:58,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747988072] [2023-12-25 22:59:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:58,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:58,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:58,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747988072] [2023-12-25 22:59:58,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747988072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:58,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:58,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:58,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412953230] [2023-12-25 22:59:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:58,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 22:59:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:58,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 22:59:58,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 22:59:58,641 INFO L87 Difference]: Start difference. First operand 57 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-25 22:59:58,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:58,679 INFO L93 Difference]: Finished difference Result 143 states and 207 transitions. [2023-12-25 22:59:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 22:59:58,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-25 22:59:58,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:58,680 INFO L225 Difference]: With dead ends: 143 [2023-12-25 22:59:58,680 INFO L226 Difference]: Without dead ends: 102 [2023-12-25 22:59:58,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-25 22:59:58,681 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 121 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 222 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 [2023-12-25 22:59:58,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 222 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-25 22:59:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 63. [2023-12-25 22:59:58,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.467741935483871) internal successors, (91), 62 states have internal predecessors, (91), 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) [2023-12-25 22:59:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2023-12-25 22:59:58,685 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 27 [2023-12-25 22:59:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:58,685 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2023-12-25 22:59:58,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-25 22:59:58,685 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2023-12-25 22:59:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-25 22:59:58,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:58,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:58,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 22:59:58,686 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:58,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:58,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1272660130, now seen corresponding path program 1 times [2023-12-25 22:59:58,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:58,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229898149] [2023-12-25 22:59:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:58,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:58,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:58,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229898149] [2023-12-25 22:59:58,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229898149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:58,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:58,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:58,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769414896] [2023-12-25 22:59:58,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:58,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 22:59:58,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 22:59:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 22:59:58,767 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-12-25 22:59:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:58,798 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2023-12-25 22:59:58,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 22:59:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-12-25 22:59:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:58,800 INFO L225 Difference]: With dead ends: 149 [2023-12-25 22:59:58,800 INFO L226 Difference]: Without dead ends: 102 [2023-12-25 22:59:58,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 22:59:58,801 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 138 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:58,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-25 22:59:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 70. [2023-12-25 22:59:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 69 states have internal predecessors, (100), 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) [2023-12-25 22:59:58,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 100 transitions. [2023-12-25 22:59:58,806 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 100 transitions. Word has length 28 [2023-12-25 22:59:58,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:58,806 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 100 transitions. [2023-12-25 22:59:58,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-12-25 22:59:58,807 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 100 transitions. [2023-12-25 22:59:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-25 22:59:58,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:58,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:58,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 22:59:58,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:58,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:58,808 INFO L85 PathProgramCache]: Analyzing trace with hash -920996932, now seen corresponding path program 1 times [2023-12-25 22:59:58,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:58,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172212675] [2023-12-25 22:59:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:58,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:58,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:58,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172212675] [2023-12-25 22:59:58,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172212675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 22:59:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 22:59:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701938433] [2023-12-25 22:59:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:58,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 22:59:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 22:59:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 22:59:58,875 INFO L87 Difference]: Start difference. First operand 70 states and 100 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-12-25 22:59:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:58,908 INFO L93 Difference]: Finished difference Result 136 states and 190 transitions. [2023-12-25 22:59:58,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 22:59:58,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-12-25 22:59:58,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:58,909 INFO L225 Difference]: With dead ends: 136 [2023-12-25 22:59:58,909 INFO L226 Difference]: Without dead ends: 86 [2023-12-25 22:59:58,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 22:59:58,910 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 118 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:58,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 22:59:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-25 22:59:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 67. [2023-12-25 22:59:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.4393939393939394) internal successors, (95), 66 states have internal predecessors, (95), 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) [2023-12-25 22:59:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2023-12-25 22:59:58,914 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 28 [2023-12-25 22:59:58,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:58,914 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2023-12-25 22:59:58,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-12-25 22:59:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2023-12-25 22:59:58,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-25 22:59:58,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:58,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:58,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 22:59:58,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 22:59:58,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 22:59:58,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1329022144, now seen corresponding path program 1 times [2023-12-25 22:59:58,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 22:59:58,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953667175] [2023-12-25 22:59:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:58,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 22:59:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:59,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 22:59:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953667175] [2023-12-25 22:59:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953667175] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 22:59:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845415660] [2023-12-25 22:59:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 22:59:59,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 22:59:59,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 22:59:59,232 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) [2023-12-25 22:59:59,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-25 22:59:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 22:59:59,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-25 22:59:59,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 22:59:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 22:59:59,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 22:59:59,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845415660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 22:59:59,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 22:59:59,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-12-25 22:59:59,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902848115] [2023-12-25 22:59:59,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 22:59:59,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 22:59:59,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 22:59:59,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 22:59:59,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-25 22:59:59,628 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2023-12-25 22:59:59,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 22:59:59,787 INFO L93 Difference]: Finished difference Result 133 states and 185 transitions. [2023-12-25 22:59:59,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 22:59:59,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-12-25 22:59:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 22:59:59,788 INFO L225 Difference]: With dead ends: 133 [2023-12-25 22:59:59,788 INFO L226 Difference]: Without dead ends: 86 [2023-12-25 22:59:59,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-12-25 22:59:59,789 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 89 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 22:59:59,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 86 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 22:59:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-25 22:59:59,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 79. [2023-12-25 22:59:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 78 states have internal predecessors, (107), 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) [2023-12-25 22:59:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2023-12-25 22:59:59,794 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 48 [2023-12-25 22:59:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 22:59:59,795 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2023-12-25 22:59:59,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2023-12-25 22:59:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2023-12-25 22:59:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 22:59:59,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 22:59:59,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 22:59:59,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-25 23:00:00,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 23:00:00,003 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 23:00:00,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 23:00:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -493938264, now seen corresponding path program 1 times [2023-12-25 23:00:00,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 23:00:00,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296618524] [2023-12-25 23:00:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 23:00:00,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 23:00:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 23:00:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 23:00:00,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 23:00:00,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296618524] [2023-12-25 23:00:00,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296618524] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 23:00:00,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287950883] [2023-12-25 23:00:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 23:00:00,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 23:00:00,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 23:00:00,326 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) [2023-12-25 23:00:00,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-25 23:00:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 23:00:00,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-25 23:00:00,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 23:00:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 23:00:00,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 23:00:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 23:00:01,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287950883] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 23:00:01,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-25 23:00:01,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 26 [2023-12-25 23:00:01,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393244630] [2023-12-25 23:00:01,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-25 23:00:01,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-25 23:00:01,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 23:00:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-25 23:00:01,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2023-12-25 23:00:01,180 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 26 states have internal predecessors, (141), 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) [2023-12-25 23:00:01,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 23:00:01,687 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2023-12-25 23:00:01,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 23:00:01,688 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 26 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-12-25 23:00:01,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 23:00:01,688 INFO L225 Difference]: With dead ends: 130 [2023-12-25 23:00:01,688 INFO L226 Difference]: Without dead ends: 83 [2023-12-25 23:00:01,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2023-12-25 23:00:01,689 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 372 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 23:00:01,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 201 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 23:00:01,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-25 23:00:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2023-12-25 23:00:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 73 states have internal predecessors, (96), 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) [2023-12-25 23:00:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2023-12-25 23:00:01,693 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 49 [2023-12-25 23:00:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 23:00:01,693 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2023-12-25 23:00:01,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 26 states have internal predecessors, (141), 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) [2023-12-25 23:00:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2023-12-25 23:00:01,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-25 23:00:01,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 23:00:01,694 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 23:00:01,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-25 23:00:01,917 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,SelfDestructingSolverStorable8 [2023-12-25 23:00:01,917 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 23:00:01,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 23:00:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash -142334648, now seen corresponding path program 1 times [2023-12-25 23:00:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 23:00:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72776761] [2023-12-25 23:00:01,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 23:00:01,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 23:00:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 23:00:02,148 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 23:00:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 23:00:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72776761] [2023-12-25 23:00:02,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72776761] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 23:00:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296241405] [2023-12-25 23:00:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 23:00:02,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 23:00:02,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 23:00:02,166 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) [2023-12-25 23:00:02,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-25 23:00:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 23:00:02,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-25 23:00:02,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 23:00:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 23:00:02,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 23:00:02,539 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-25 23:00:02,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296241405] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 23:00:02,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-25 23:00:02,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 17 [2023-12-25 23:00:02,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182606712] [2023-12-25 23:00:02,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-25 23:00:02,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 23:00:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 23:00:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 23:00:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-25 23:00:02,541 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 17 states have internal predecessors, (99), 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) [2023-12-25 23:00:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 23:00:02,673 INFO L93 Difference]: Finished difference Result 104 states and 137 transitions. [2023-12-25 23:00:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 23:00:02,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-12-25 23:00:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 23:00:02,674 INFO L225 Difference]: With dead ends: 104 [2023-12-25 23:00:02,674 INFO L226 Difference]: Without dead ends: 0 [2023-12-25 23:00:02,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2023-12-25 23:00:02,675 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 267 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 23:00:02,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 272 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 23:00:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-25 23:00:02,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-25 23:00:02,675 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) [2023-12-25 23:00:02,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-25 23:00:02,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2023-12-25 23:00:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 23:00:02,695 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-25 23:00:02,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 17 states have internal predecessors, (99), 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) [2023-12-25 23:00:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-25 23:00:02,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-25 23:00:02,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 23:00:02,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-25 23:00:02,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-25 23:00:02,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-25 23:00:02,943 INFO L899 garLoopResultBuilder]: For program point L135(line 135) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L135-2(line 135) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L135-4(line 135) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L895 garLoopResultBuilder]: At program point L86-2(lines 86 185) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~var_12~0#1| 1)) (.cse1 (= |ULTIMATE.start_main_~state_8~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~var_22~0#1| 1)) (.cse3 (= |ULTIMATE.start_main_~mask_SORT_1~0#1| 1)) (.cse4 (= |ULTIMATE.start_main_~var_7~0#1| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~state_28~0#1| 0) (= |ULTIMATE.start_main_~state_26~0#1| 0) .cse1 (= |ULTIMATE.start_main_~state_15~0#1| 0) .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_main_~var_24_arg_0~0#1| 1) .cse0 (= |ULTIMATE.start_main_~next_74_arg_1~0#1| 0) (<= 0 (+ (* 256 (div (* (- 1) |ULTIMATE.start_main_~next_76_arg_1~0#1|) 256)) |ULTIMATE.start_main_~next_76_arg_1~0#1|)) .cse1 .cse2 (<= 0 (+ (* (div (* (- 1) |ULTIMATE.start_main_~state_15~0#1|) 256) 256) |ULTIMATE.start_main_~state_15~0#1|)) .cse3 .cse4))) [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L86-3(lines 86 185) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L177-2(line 177) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L177-4(line 177) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-12-25 23:00:02,944 INFO L899 garLoopResultBuilder]: For program point L136-2(line 136) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L136-4(line 136) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L70-4(line 70) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-25 23:00:02,945 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L71-2(line 71) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L71-4(line 71) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L154-2(line 154) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L154-4(line 154) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L171-2(line 171) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L171-4(line 171) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L72-2(line 72) no Hoare annotation was computed. [2023-12-25 23:00:02,946 INFO L899 garLoopResultBuilder]: For program point L72-4(line 72) no Hoare annotation was computed. [2023-12-25 23:00:02,948 INFO L899 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2023-12-25 23:00:02,948 INFO L899 garLoopResultBuilder]: For program point L130-2(line 130) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L130-4(line 130) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L73-2(line 73) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L73-4(line 73) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L123(line 123) no Hoare annotation was computed. [2023-12-25 23:00:02,949 INFO L899 garLoopResultBuilder]: For program point L123-2(line 123) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L123-4(line 123) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L115-2(line 115) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L115-4(line 115) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L74-2(line 74) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point L74-4(line 74) no Hoare annotation was computed. [2023-12-25 23:00:02,950 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-25 23:00:02,952 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 23:00:02,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 23:00:02,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 11:00:02 BoogieIcfgContainer [2023-12-25 23:00:02,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 23:00:02,963 INFO L158 Benchmark]: Toolchain (without parser) took 6932.45ms. Allocated memory was 282.1MB in the beginning and 429.9MB in the end (delta: 147.8MB). Free memory was 232.3MB in the beginning and 382.9MB in the end (delta: -150.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 23:00:02,963 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 177.2MB. Free memory was 128.4MB in the beginning and 128.2MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 23:00:02,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.57ms. Allocated memory is still 282.1MB. Free memory was 232.0MB in the beginning and 217.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-25 23:00:02,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.98ms. Allocated memory is still 282.1MB. Free memory was 217.4MB in the beginning and 211.4MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-25 23:00:02,964 INFO L158 Benchmark]: Boogie Preprocessor took 54.77ms. Allocated memory is still 282.1MB. Free memory was 211.4MB in the beginning and 207.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-25 23:00:02,964 INFO L158 Benchmark]: RCFGBuilder took 528.20ms. Allocated memory is still 282.1MB. Free memory was 207.2MB in the beginning and 225.9MB in the end (delta: -18.7MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2023-12-25 23:00:02,964 INFO L158 Benchmark]: TraceAbstraction took 6063.56ms. Allocated memory was 282.1MB in the beginning and 429.9MB in the end (delta: 147.8MB). Free memory was 225.4MB in the beginning and 382.9MB in the end (delta: -157.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 23:00:02,965 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 177.2MB. Free memory was 128.4MB in the beginning and 128.2MB in the end (delta: 136.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.57ms. Allocated memory is still 282.1MB. Free memory was 232.0MB in the beginning and 217.4MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.98ms. Allocated memory is still 282.1MB. Free memory was 217.4MB in the beginning and 211.4MB in the end (delta: 6.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.77ms. Allocated memory is still 282.1MB. Free memory was 211.4MB in the beginning and 207.4MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 528.20ms. Allocated memory is still 282.1MB. Free memory was 207.2MB in the beginning and 225.9MB in the end (delta: -18.7MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. * TraceAbstraction took 6063.56ms. Allocated memory was 282.1MB in the beginning and 429.9MB in the end (delta: 147.8MB). Free memory was 225.4MB in the beginning and 382.9MB in the end (delta: -157.5MB). 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1507 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1507 mSDsluCounter, 2106 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1520 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1263 IncrementalHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 586 mSDtfsCounter, 1263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 220 SyntacticMatches, 5 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=8, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 181 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 70 HoareAnnotationTreeSize, 1 FormulaSimplifications, 288 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 477 NumberOfCodeBlocks, 477 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 3398 SizeOfPredicates, 33 NumberOfNonLiveVariables, 1031 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 79/104 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: 86]: Loop Invariant Derived loop invariant: (((((((((var_12 == 1) && (state_28 == 0)) && (state_26 == 0)) && (state_8 == 0)) && (state_15 == 0)) && (var_22 == 1)) && (mask_SORT_1 == 1)) && (var_7 == 0)) || (((((((((var_24_arg_0 == 1) && (var_12 == 1)) && (next_74_arg_1 == 0)) && (0 <= ((256 * ((-1 * next_76_arg_1) / 256)) + next_76_arg_1))) && (state_8 == 0)) && (var_22 == 1)) && (0 <= ((((-1 * state_15) / 256) * 256) + state_15))) && (mask_SORT_1 == 1)) && (var_7 == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-25 23:00:02,997 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...