/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:45:18,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:45:18,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 10:45:18,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:45:18,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:45:18,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:45:18,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:45:18,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:45:18,839 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:45:18,843 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:45:18,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:45:18,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:45:18,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:45:18,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:45:18,846 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:45:18,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:45:18,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:45:18,846 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:45:18,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:45:18,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:45:18,847 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:45:18,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:45:18,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:45:18,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:45:18,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:45:18,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:45:18,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:45:18,850 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:45:18,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:45:18,851 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:45:18,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:45:18,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:45:18,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:45:18,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:45:18,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:45:18,853 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:45:18,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:45:18,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:45:18,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:45:19,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:45:19,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:45:19,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:45:19,150 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:45:19,152 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:45:19,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i [2023-12-19 10:45:20,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:45:20,657 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:45:20,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i [2023-12-19 10:45:20,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3be79ef3/125ce7efad964af3a1373ddc200c6b9d/FLAGad22e6bf3 [2023-12-19 10:45:20,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3be79ef3/125ce7efad964af3a1373ddc200c6b9d [2023-12-19 10:45:20,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:45:20,689 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:45:20,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:45:20,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:45:20,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:45:20,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:20,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c45725b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20, skipping insertion in model container [2023-12-19 10:45:20,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:20,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:45:20,870 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i[916,929] [2023-12-19 10:45:20,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:45:20,920 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:45:20,929 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-21.i[916,929] [2023-12-19 10:45:20,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:45:20,959 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:45:20,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20 WrapperNode [2023-12-19 10:45:20,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:45:20,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:45:20,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:45:20,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:45:20,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:20,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,006 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-12-19 10:45:21,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:45:21,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:45:21,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:45:21,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:45:21,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,051 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]. [2023-12-19 10:45:21,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:45:21,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:45:21,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:45:21,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:45:21,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (1/1) ... [2023-12-19 10:45:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:45:21,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:21,113 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) [2023-12-19 10:45:21,115 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 [2023-12-19 10:45:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:45:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:45:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:45:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:45:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:45:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:45:21,201 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:45:21,204 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:45:21,448 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:45:21,481 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:45:21,481 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:45:21,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:45:21 BoogieIcfgContainer [2023-12-19 10:45:21,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:45:21,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:45:21,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:45:21,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:45:21,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:45:20" (1/3) ... [2023-12-19 10:45:21,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707902f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:45:21, skipping insertion in model container [2023-12-19 10:45:21,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:45:20" (2/3) ... [2023-12-19 10:45:21,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707902f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:45:21, skipping insertion in model container [2023-12-19 10:45:21,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:45:21" (3/3) ... [2023-12-19 10:45:21,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-21.i [2023-12-19 10:45:21,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:45:21,505 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:45:21,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:45:21,560 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;@16415be2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:45:21,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:45:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 10:45:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-19 10:45:21,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:21,574 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:21,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:21,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:21,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1348981652, now seen corresponding path program 1 times [2023-12-19 10:45:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:21,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003782792] [2023-12-19 10:45:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:21,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:21,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:45:21,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003782792] [2023-12-19 10:45:21,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 10:45:21,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510848809] [2023-12-19 10:45:21,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:21,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:21,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:21,741 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) [2023-12-19 10:45:21,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 10:45:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:21,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 10:45:21,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-19 10:45:21,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:45:21,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510848809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:45:21,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:45:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:45:21,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404054459] [2023-12-19 10:45:21,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:45:21,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:45:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:45:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:45:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:45:21,907 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 10:45:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:45:21,941 INFO L93 Difference]: Finished difference Result 73 states and 128 transitions. [2023-12-19 10:45:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:45:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2023-12-19 10:45:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:45:21,950 INFO L225 Difference]: With dead ends: 73 [2023-12-19 10:45:21,951 INFO L226 Difference]: Without dead ends: 36 [2023-12-19 10:45:21,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:45:21,957 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:45:21,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:45:21,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-19 10:45:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-12-19 10:45:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 10:45:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. [2023-12-19 10:45:21,995 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 54 transitions. Word has length 74 [2023-12-19 10:45:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:45:21,995 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 54 transitions. [2023-12-19 10:45:21,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 10:45:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2023-12-19 10:45:21,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-19 10:45:21,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:21,999 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:22,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 10:45:22,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 10:45:22,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:22,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash -499078252, now seen corresponding path program 1 times [2023-12-19 10:45:22,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:22,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580344164] [2023-12-19 10:45:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:22,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:45:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927333811] [2023-12-19 10:45:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:22,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:22,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:22,316 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) [2023-12-19 10:45:22,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 10:45:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:22,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 10:45:22,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-19 10:45:22,560 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:45:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 10:45:22,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:45:22,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580344164] [2023-12-19 10:45:22,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:45:22,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927333811] [2023-12-19 10:45:22,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927333811] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:45:22,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:45:22,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-19 10:45:22,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931307855] [2023-12-19 10:45:22,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:45:22,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:45:22,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:45:22,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:45:22,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:45:22,763 INFO L87 Difference]: Start difference. First operand 36 states and 54 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 10:45:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:45:22,915 INFO L93 Difference]: Finished difference Result 75 states and 110 transitions. [2023-12-19 10:45:22,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:45:22,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 74 [2023-12-19 10:45:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:45:22,919 INFO L225 Difference]: With dead ends: 75 [2023-12-19 10:45:22,919 INFO L226 Difference]: Without dead ends: 40 [2023-12-19 10:45:22,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-12-19 10:45:22,924 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 30 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:45:22,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 78 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:45:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-12-19 10:45:22,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-12-19 10:45:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 10:45:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2023-12-19 10:45:22,951 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 74 [2023-12-19 10:45:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:45:22,951 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2023-12-19 10:45:22,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 10:45:22,952 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2023-12-19 10:45:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-19 10:45:22,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:22,954 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:22,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 10:45:23,160 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,SelfDestructingSolverStorable1 [2023-12-19 10:45:23,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:23,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1462031462, now seen corresponding path program 1 times [2023-12-19 10:45:23,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:23,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808636705] [2023-12-19 10:45:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:23,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:45:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874493646] [2023-12-19 10:45:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:23,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:23,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:23,219 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) [2023-12-19 10:45:23,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 10:45:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:23,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-19 10:45:23,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:45:23,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:45:23,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:45:23,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808636705] [2023-12-19 10:45:23,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:45:23,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874493646] [2023-12-19 10:45:23,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874493646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:45:23,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:45:23,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:45:23,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623749138] [2023-12-19 10:45:23,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:45:23,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 10:45:23,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:45:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 10:45:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 10:45:23,455 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:23,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:45:23,552 INFO L93 Difference]: Finished difference Result 118 states and 165 transitions. [2023-12-19 10:45:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 10:45:23,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 75 [2023-12-19 10:45:23,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:45:23,556 INFO L225 Difference]: With dead ends: 118 [2023-12-19 10:45:23,557 INFO L226 Difference]: Without dead ends: 79 [2023-12-19 10:45:23,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:45:23,562 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 27 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:45:23,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 140 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:45:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-19 10:45:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2023-12-19 10:45:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 40 states have (on average 1.175) internal successors, (47), 40 states have internal predecessors, (47), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 10:45:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2023-12-19 10:45:23,585 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 75 [2023-12-19 10:45:23,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:45:23,586 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2023-12-19 10:45:23,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2023-12-19 10:45:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-19 10:45:23,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:23,588 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:23,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 10:45:23,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:23,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:23,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1722936822, now seen corresponding path program 1 times [2023-12-19 10:45:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308676473] [2023-12-19 10:45:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:23,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:45:23,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744252036] [2023-12-19 10:45:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:23,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:23,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:23,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:45:23,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 10:45:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:23,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 10:45:23,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:45:52,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:45:52,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:45:52,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308676473] [2023-12-19 10:45:52,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:45:52,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744252036] [2023-12-19 10:45:52,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744252036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:45:52,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:45:52,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 10:45:52,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899897145] [2023-12-19 10:45:52,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:45:52,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:45:52,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:45:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:45:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:45:52,050 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:45:52,227 INFO L93 Difference]: Finished difference Result 95 states and 127 transitions. [2023-12-19 10:45:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:45:52,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2023-12-19 10:45:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:45:52,247 INFO L225 Difference]: With dead ends: 95 [2023-12-19 10:45:52,247 INFO L226 Difference]: Without dead ends: 93 [2023-12-19 10:45:52,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-19 10:45:52,251 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 36 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:45:52,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 179 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:45:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-19 10:45:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 74. [2023-12-19 10:45:52,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 10:45:52,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2023-12-19 10:45:52,274 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 76 [2023-12-19 10:45:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:45:52,276 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2023-12-19 10:45:52,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2023-12-19 10:45:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-19 10:45:52,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:52,296 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:52,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 10:45:52,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:52,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:52,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1862217962, now seen corresponding path program 1 times [2023-12-19 10:45:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:52,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704608488] [2023-12-19 10:45:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:52,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:52,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:45:52,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570760873] [2023-12-19 10:45:52,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:52,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:52,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:52,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:45:52,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 10:45:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:52,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 10:45:52,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:45:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:45:52,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:45:52,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:45:52,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704608488] [2023-12-19 10:45:52,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:45:52,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570760873] [2023-12-19 10:45:52,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570760873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:45:52,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:45:52,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:45:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790883672] [2023-12-19 10:45:52,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:45:52,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 10:45:52,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:45:52,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 10:45:52,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 10:45:52,707 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:45:52,768 INFO L93 Difference]: Finished difference Result 174 states and 238 transitions. [2023-12-19 10:45:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 10:45:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2023-12-19 10:45:52,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:45:52,770 INFO L225 Difference]: With dead ends: 174 [2023-12-19 10:45:52,770 INFO L226 Difference]: Without dead ends: 130 [2023-12-19 10:45:52,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:45:52,771 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 46 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:45:52,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 157 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:45:52,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-19 10:45:52,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2023-12-19 10:45:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 10:45:52,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 160 transitions. [2023-12-19 10:45:52,788 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 160 transitions. Word has length 77 [2023-12-19 10:45:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:45:52,788 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 160 transitions. [2023-12-19 10:45:52,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:45:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 160 transitions. [2023-12-19 10:45:52,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-19 10:45:52,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:45:52,790 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:45:52,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 10:45:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:53,000 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:45:53,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:45:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1862277544, now seen corresponding path program 1 times [2023-12-19 10:45:53,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:45:53,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004511506] [2023-12-19 10:45:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:45:53,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:45:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614775069] [2023-12-19 10:45:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:45:53,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:45:53,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:45:53,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:45:53,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 10:45:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:45:53,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 10:45:53,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:46:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 10:46:31,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:46:31,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:46:31,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004511506] [2023-12-19 10:46:31,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:46:31,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614775069] [2023-12-19 10:46:31,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614775069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:46:31,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:46:31,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 10:46:31,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481931044] [2023-12-19 10:46:31,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:46:31,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 10:46:31,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:46:31,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 10:46:31,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-19 10:46:31,402 INFO L87 Difference]: Start difference. First operand 114 states and 160 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:46:32,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:46:32,468 INFO L93 Difference]: Finished difference Result 152 states and 206 transitions. [2023-12-19 10:46:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 10:46:32,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2023-12-19 10:46:32,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:46:32,470 INFO L225 Difference]: With dead ends: 152 [2023-12-19 10:46:32,470 INFO L226 Difference]: Without dead ends: 150 [2023-12-19 10:46:32,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:46:32,471 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 10:46:32,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 252 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 10:46:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-12-19 10:46:32,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 118. [2023-12-19 10:46:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 10:46:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2023-12-19 10:46:32,487 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 77 [2023-12-19 10:46:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:46:32,487 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2023-12-19 10:46:32,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:46:32,487 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2023-12-19 10:46:32,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 10:46:32,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:46:32,490 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:46:32,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 10:46:32,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:46:32,698 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:46:32,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:46:32,698 INFO L85 PathProgramCache]: Analyzing trace with hash -456201256, now seen corresponding path program 1 times [2023-12-19 10:46:32,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:46:32,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461640191] [2023-12-19 10:46:32,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:32,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:46:32,729 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:46:32,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251244024] [2023-12-19 10:46:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:32,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:46:32,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:46:32,739 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:46:32,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 10:46:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:46:32,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 10:46:32,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:46:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:46:54,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:46:54,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:46:54,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461640191] [2023-12-19 10:46:54,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:46:54,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251244024] [2023-12-19 10:46:54,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251244024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:46:54,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:46:54,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 10:46:54,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291064901] [2023-12-19 10:46:54,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:46:54,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 10:46:54,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:46:54,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 10:46:54,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 10:46:54,859 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:46:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:46:55,033 INFO L93 Difference]: Finished difference Result 286 states and 401 transitions. [2023-12-19 10:46:55,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 10:46:55,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 150 [2023-12-19 10:46:55,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:46:55,037 INFO L225 Difference]: With dead ends: 286 [2023-12-19 10:46:55,040 INFO L226 Difference]: Without dead ends: 198 [2023-12-19 10:46:55,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:46:55,042 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 70 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:46:55,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 228 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:46:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-19 10:46:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 190. [2023-12-19 10:46:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 119 states have internal predecessors, (144), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-19 10:46:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 264 transitions. [2023-12-19 10:46:55,067 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 264 transitions. Word has length 150 [2023-12-19 10:46:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:46:55,067 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 264 transitions. [2023-12-19 10:46:55,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:46:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 264 transitions. [2023-12-19 10:46:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 10:46:55,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:46:55,070 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:46:55,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 10:46:55,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:46:55,273 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:46:55,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:46:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1266553016, now seen corresponding path program 1 times [2023-12-19 10:46:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:46:55,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582306835] [2023-12-19 10:46:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:55,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:46:55,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:46:55,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257749384] [2023-12-19 10:46:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:46:55,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:46:55,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:46:55,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:46:55,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 10:46:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:46:55,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-19 10:46:55,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:47:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 5 proven. 93 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2023-12-19 10:47:06,829 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:47:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:47:36,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:47:36,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582306835] [2023-12-19 10:47:36,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:47:36,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257749384] [2023-12-19 10:47:36,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257749384] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:47:36,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:47:36,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-12-19 10:47:36,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952666600] [2023-12-19 10:47:36,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:47:36,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:47:36,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:47:36,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:47:36,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-12-19 10:47:36,950 INFO L87 Difference]: Start difference. First operand 190 states and 264 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:47:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:47:39,392 INFO L93 Difference]: Finished difference Result 296 states and 406 transitions. [2023-12-19 10:47:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 10:47:39,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 151 [2023-12-19 10:47:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:47:39,395 INFO L225 Difference]: With dead ends: 296 [2023-12-19 10:47:39,395 INFO L226 Difference]: Without dead ends: 294 [2023-12-19 10:47:39,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-19 10:47:39,395 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 79 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 10:47:39,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 246 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 10:47:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-19 10:47:39,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 268. [2023-12-19 10:47:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 169 states have (on average 1.2189349112426036) internal successors, (206), 169 states have internal predecessors, (206), 84 states have call successors, (84), 14 states have call predecessors, (84), 14 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-19 10:47:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 374 transitions. [2023-12-19 10:47:39,454 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 374 transitions. Word has length 151 [2023-12-19 10:47:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:47:39,456 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 374 transitions. [2023-12-19 10:47:39,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:47:39,457 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 374 transitions. [2023-12-19 10:47:39,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 10:47:39,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:47:39,460 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:47:39,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 10:47:39,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 10:47:39,669 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:47:39,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:47:39,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1266493434, now seen corresponding path program 1 times [2023-12-19 10:47:39,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:47:39,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075780409] [2023-12-19 10:47:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:47:39,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:47:39,685 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:47:39,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1501665192] [2023-12-19 10:47:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:47:39,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:47:39,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:47:39,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:47:39,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 10:47:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:47:39,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 10:47:39,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:47:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 599 proven. 2 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-19 10:47:39,904 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:47:39,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1129 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-19 10:47:39,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:47:39,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075780409] [2023-12-19 10:47:39,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:47:39,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501665192] [2023-12-19 10:47:39,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501665192] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 10:47:39,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 10:47:39,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-19 10:47:39,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414410424] [2023-12-19 10:47:39,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 10:47:39,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 10:47:39,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:47:39,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 10:47:39,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:47:39,996 INFO L87 Difference]: Start difference. First operand 268 states and 374 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-19 10:47:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:47:40,124 INFO L93 Difference]: Finished difference Result 560 states and 752 transitions. [2023-12-19 10:47:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:47:40,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 151 [2023-12-19 10:47:40,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:47:40,127 INFO L225 Difference]: With dead ends: 560 [2023-12-19 10:47:40,127 INFO L226 Difference]: Without dead ends: 322 [2023-12-19 10:47:40,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:47:40,129 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 76 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:47:40,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 230 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:47:40,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-12-19 10:47:40,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 293. [2023-12-19 10:47:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 187 states have (on average 1.1711229946524064) internal successors, (219), 187 states have internal predecessors, (219), 84 states have call successors, (84), 21 states have call predecessors, (84), 21 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-19 10:47:40,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 387 transitions. [2023-12-19 10:47:40,177 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 387 transitions. Word has length 151 [2023-12-19 10:47:40,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:47:40,179 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 387 transitions. [2023-12-19 10:47:40,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-19 10:47:40,182 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 387 transitions. [2023-12-19 10:47:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 10:47:40,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:47:40,184 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:47:40,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 10:47:40,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:47:40,393 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:47:40,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:47:40,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1479629076, now seen corresponding path program 1 times [2023-12-19 10:47:40,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:47:40,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059662171] [2023-12-19 10:47:40,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:47:40,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:47:40,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:47:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985052476] [2023-12-19 10:47:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:47:40,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:47:40,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:47:40,425 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:47:40,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 10:47:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:47:40,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 10:47:40,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:48:06,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:48:06,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:48:06,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:48:06,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059662171] [2023-12-19 10:48:06,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:48:06,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985052476] [2023-12-19 10:48:06,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985052476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:48:06,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:48:06,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 10:48:06,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065036962] [2023-12-19 10:48:06,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:48:06,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:48:06,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:48:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:48:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:48:06,364 INFO L87 Difference]: Start difference. First operand 293 states and 387 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:48:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:48:06,639 INFO L93 Difference]: Finished difference Result 301 states and 396 transitions. [2023-12-19 10:48:06,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:48:06,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 152 [2023-12-19 10:48:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:48:06,645 INFO L225 Difference]: With dead ends: 301 [2023-12-19 10:48:06,646 INFO L226 Difference]: Without dead ends: 213 [2023-12-19 10:48:06,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-19 10:48:06,647 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 61 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:48:06,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 234 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 10:48:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-19 10:48:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2023-12-19 10:48:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 137 states have (on average 1.167883211678832) internal successors, (160), 137 states have internal predecessors, (160), 60 states have call successors, (60), 15 states have call predecessors, (60), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-19 10:48:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 280 transitions. [2023-12-19 10:48:06,670 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 280 transitions. Word has length 152 [2023-12-19 10:48:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:48:06,671 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 280 transitions. [2023-12-19 10:48:06,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:48:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 280 transitions. [2023-12-19 10:48:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 10:48:06,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:48:06,672 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:48:06,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 10:48:06,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 10:48:06,881 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:48:06,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:48:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash 981545948, now seen corresponding path program 1 times [2023-12-19 10:48:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:48:06,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436705213] [2023-12-19 10:48:06,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:48:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:48:06,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:48:06,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3267227] [2023-12-19 10:48:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:48:06,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:48:06,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:48:06,896 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:48:06,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 10:48:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:48:06,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 10:48:06,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:48:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2023-12-19 10:48:24,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 10:50:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:50:06,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:50:06,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436705213] [2023-12-19 10:50:06,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:50:06,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3267227] [2023-12-19 10:50:06,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3267227] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 10:50:06,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 10:50:06,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 12 [2023-12-19 10:50:06,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568140385] [2023-12-19 10:50:06,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:50:06,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 10:50:06,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:50:06,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 10:50:06,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-19 10:50:06,739 INFO L87 Difference]: Start difference. First operand 213 states and 280 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:50:09,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:50:09,563 INFO L93 Difference]: Finished difference Result 234 states and 300 transitions. [2023-12-19 10:50:09,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 10:50:09,564 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 152 [2023-12-19 10:50:09,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:50:09,565 INFO L225 Difference]: With dead ends: 234 [2023-12-19 10:50:09,565 INFO L226 Difference]: Without dead ends: 232 [2023-12-19 10:50:09,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 295 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-12-19 10:50:09,566 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 100 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 10:50:09,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 330 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 10:50:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-19 10:50:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 129. [2023-12-19 10:50:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 83 states have (on average 1.1686746987951808) internal successors, (97), 83 states have internal predecessors, (97), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 10:50:09,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 169 transitions. [2023-12-19 10:50:09,585 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 169 transitions. Word has length 152 [2023-12-19 10:50:09,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:50:09,586 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 169 transitions. [2023-12-19 10:50:09,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:50:09,586 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 169 transitions. [2023-12-19 10:50:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 10:50:09,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:50:09,587 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:50:09,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 10:50:09,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 10:50:09,799 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:50:09,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:50:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2064772685, now seen corresponding path program 1 times [2023-12-19 10:50:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:50:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518467620] [2023-12-19 10:50:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:50:09,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:50:09,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:50:09,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572137957] [2023-12-19 10:50:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:50:09,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:50:09,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:50:09,830 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:50:09,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 10:50:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:50:09,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 10:50:09,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:50:45,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:50:45,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:50:45,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:50:45,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518467620] [2023-12-19 10:50:45,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:50:45,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572137957] [2023-12-19 10:50:45,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572137957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:50:45,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:50:45,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 10:50:45,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826525642] [2023-12-19 10:50:45,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:50:45,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 10:50:45,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:50:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 10:50:45,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 10:50:45,895 INFO L87 Difference]: Start difference. First operand 129 states and 169 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:50:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:50:46,149 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2023-12-19 10:50:46,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 10:50:46,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 152 [2023-12-19 10:50:46,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:50:46,150 INFO L225 Difference]: With dead ends: 138 [2023-12-19 10:50:46,150 INFO L226 Difference]: Without dead ends: 136 [2023-12-19 10:50:46,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-19 10:50:46,151 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 38 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 10:50:46,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 144 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 10:50:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-19 10:50:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 124. [2023-12-19 10:50:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 78 states have (on average 1.141025641025641) internal successors, (89), 78 states have internal predecessors, (89), 36 states have call successors, (36), 9 states have call predecessors, (36), 9 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 10:50:46,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 161 transitions. [2023-12-19 10:50:46,168 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 161 transitions. Word has length 152 [2023-12-19 10:50:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:50:46,168 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 161 transitions. [2023-12-19 10:50:46,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:50:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 161 transitions. [2023-12-19 10:50:46,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 10:50:46,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:50:46,170 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:50:46,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 10:50:46,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 10:50:46,381 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:50:46,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:50:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1488099775, now seen corresponding path program 1 times [2023-12-19 10:50:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:50:46,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35405090] [2023-12-19 10:50:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:50:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:50:46,393 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 10:50:46,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745980191] [2023-12-19 10:50:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:50:46,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 10:50:46,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:50:46,395 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 10:50:46,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 10:50:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:50:46,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 10:50:46,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 10:51:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-19 10:51:32,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 10:51:32,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:51:32,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35405090] [2023-12-19 10:51:32,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 10:51:32,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745980191] [2023-12-19 10:51:32,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745980191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:51:32,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:51:32,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 10:51:32,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185443821] [2023-12-19 10:51:32,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:51:32,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 10:51:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:51:32,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 10:51:32,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-19 10:51:32,809 INFO L87 Difference]: Start difference. First operand 124 states and 161 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:51:34,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 10:51:34,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:51:34,226 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2023-12-19 10:51:34,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 10:51:34,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 154 [2023-12-19 10:51:34,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:51:34,227 INFO L225 Difference]: With dead ends: 138 [2023-12-19 10:51:34,227 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 10:51:34,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:51:34,228 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 25 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 10:51:34,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 217 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 10:51:34,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 10:51:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 10:51:34,229 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) [2023-12-19 10:51:34,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 10:51:34,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2023-12-19 10:51:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:51:34,229 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 10:51:34,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 10:51:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 10:51:34,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 10:51:34,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:51:34,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 10:51:34,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 10:51:34,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 10:51:54,222 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 10:51:54,222 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 10:51:54,222 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 10:51:54,222 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,222 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 44) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 59) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L895 garLoopResultBuilder]: At program point L65(line 65) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,223 INFO L895 garLoopResultBuilder]: At program point L65-1(line 65) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 55) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L78(lines 60 79) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L45(lines 35 59) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,223 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-12-19 10:51:54,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 10:51:54,224 INFO L895 garLoopResultBuilder]: At program point L62(line 62) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,224 INFO L895 garLoopResultBuilder]: At program point L62-1(line 62) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,224 INFO L895 garLoopResultBuilder]: At program point L91-2(lines 91 97) the Hoare annotation is: (let ((.cse14 (mod ~var_1_1~0 65536))) (let ((.cse10 (= .cse14 ~var_1_13~0)) (.cse12 (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)) (.cse11 (* 2 ~last_1_var_1_13~0))) (let ((.cse0 (not (= (mod ~var_1_7~0 256) 0))) (.cse6 (<= .cse12 .cse11)) (.cse9 (= ~var_1_1~0 ~last_1_var_1_13~0)) (.cse1 (or (< 32767 .cse14) .cse10)) (.cse7 (= ~var_1_7~0 0)) (.cse2 (<= 1 (mod ~var_1_12~0 256))) (.cse3 (or (< .cse14 32768) (= .cse14 (+ 65536 ~var_1_13~0)))) (.cse4 (or (< 0 (+ ~last_1_var_1_13~0 1)) (= (mod ~last_1_var_1_13~0 65536) .cse14))) (.cse8 (let ((.cse13 (+ ~var_1_10~0 1))) (or (< ~var_1_9~0 .cse13) (< ~var_1_8~0 .cse13)))) (.cse5 (<= (+ .cse11 1) .cse12))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse2 .cse8 .cse9 .cse10) (and (= 256 ~last_1_var_1_13~0) .cse7 .cse2 (= ~last_1_var_1_7~0 0) (= 256 ~var_1_13~0)) (and .cse0 .cse6 .cse2 .cse9 .cse10) (and .cse1 .cse7 .cse2 .cse3 .cse4 .cse8 .cse5))))) [2023-12-19 10:51:54,224 INFO L899 garLoopResultBuilder]: For program point L91-3(lines 91 97) no Hoare annotation was computed. [2023-12-19 10:51:54,224 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-12-19 10:51:54,224 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-19 10:51:54,224 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 10:51:54,224 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse5 (mod ~var_1_1~0 65536))) (let ((.cse0 (= ~var_1_7~0 0)) (.cse1 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< 32767 .cse5) (= .cse5 ~var_1_13~0))) (.cse3 (or (< .cse5 32768) (= .cse5 (+ 65536 ~var_1_13~0)))) (.cse4 (or (= (mod ~last_1_var_1_13~0 65536) .cse5) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (= 256 ~last_1_var_1_13~0) .cse0 .cse1 (= 256 ~var_1_13~0)) (and .cse2 .cse0 .cse1 .cse3 .cse4) (and (not (= (mod ~var_1_7~0 256) 0)) .cse2 .cse3 .cse4 (not (= (mod ~last_1_var_1_7~0 256) 0)))))) [2023-12-19 10:51:54,224 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,224 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 40) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,225 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (let ((.cse6 (mod ~var_1_1~0 65536))) (let ((.cse0 (or (< 32767 .cse6) (= .cse6 ~var_1_13~0))) (.cse4 (= ~var_1_7~0 0)) (.cse1 (<= 1 (mod ~var_1_12~0 256))) (.cse5 (= ~last_1_var_1_7~0 0)) (.cse2 (or (< .cse6 32768) (= .cse6 (+ 65536 ~var_1_13~0)))) (.cse3 (or (= (mod ~last_1_var_1_13~0 65536) .cse6) (and (<= 0 ~last_1_var_1_13~0) (<= (+ (* 2 ~last_1_var_1_13~0) 1) (* ~last_1_var_1_13~0 ~last_1_var_1_13~0)))))) (or (and (not (= (mod ~var_1_7~0 256) 0)) .cse0 .cse1 .cse2 .cse3 (not (= (mod ~last_1_var_1_7~0 256) 0))) (and (= 256 ~last_1_var_1_13~0) .cse4 .cse1 .cse5 (= 256 ~var_1_13~0)) (and .cse0 .cse4 .cse1 .cse5 .cse2 .cse3)))) [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 59) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 10:51:54,225 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 10:51:54,228 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 10:51:54,230 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:51:54,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:51:54 BoogieIcfgContainer [2023-12-19 10:51:54,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:51:54,242 INFO L158 Benchmark]: Toolchain (without parser) took 393553.53ms. Allocated memory was 188.7MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 136.4MB in the beginning and 494.6MB in the end (delta: -358.2MB). Peak memory consumption was 612.8MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,243 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 188.7MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:51:54,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.42ms. Allocated memory is still 188.7MB. Free memory was 136.4MB in the beginning and 123.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.64ms. Allocated memory is still 188.7MB. Free memory was 123.7MB in the beginning and 121.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,243 INFO L158 Benchmark]: Boogie Preprocessor took 74.96ms. Allocated memory is still 188.7MB. Free memory was 121.2MB in the beginning and 118.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,243 INFO L158 Benchmark]: RCFGBuilder took 398.71ms. Allocated memory is still 188.7MB. Free memory was 118.0MB in the beginning and 101.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,244 INFO L158 Benchmark]: TraceAbstraction took 392757.72ms. Allocated memory was 188.7MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 101.3MB in the beginning and 494.6MB in the end (delta: -393.3MB). Peak memory consumption was 578.2MB. Max. memory is 8.0GB. [2023-12-19 10:51:54,245 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 188.7MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 270.42ms. Allocated memory is still 188.7MB. Free memory was 136.4MB in the beginning and 123.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.64ms. Allocated memory is still 188.7MB. Free memory was 123.7MB in the beginning and 121.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.96ms. Allocated memory is still 188.7MB. Free memory was 121.2MB in the beginning and 118.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 398.71ms. Allocated memory is still 188.7MB. Free memory was 118.0MB in the beginning and 101.8MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 392757.72ms. Allocated memory was 188.7MB in the beginning and 1.0GB in the end (delta: 833.6MB). Free memory was 101.3MB in the beginning and 494.6MB in the end (delta: -393.3MB). Peak memory consumption was 578.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 392.7s, OverallIterations: 13, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 19.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 625 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 619 mSDsluCounter, 2486 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1650 mSDsCounter, 189 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 873 IncrementalHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 189 mSolverCounterUnsat, 836 mSDtfsCounter, 873 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2060 GetRequests, 1963 SyntacticMatches, 7 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=293occurred in iteration=9, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 255 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 217 PreInvPairs, 286 NumberOfFragments, 1859 HoareAnnotationTreeSize, 217 FormulaSimplifications, 269996 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 14 FormulaSimplificationsInter, 9489 FormulaSimplificationTreeSizeReductionInter, 16.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 358.8s InterpolantComputationTime, 1589 NumberOfCodeBlocks, 1589 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2026 ConstructedInterpolants, 0 QuantifiedInterpolants, 4513 SizeOfPredicates, 120 NumberOfNonLiveVariables, 3517 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 13016/13144 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: 91]: Loop Invariant Derived loop invariant: (((((((((!(((var_1_7 % 256) == 0)) && ((32767 < (var_1_1 % 65536)) || ((var_1_1 % 65536) == var_1_13))) && (1 <= (var_1_12 % 256))) && (((var_1_1 % 65536) < 32768) || ((var_1_1 % 65536) == (65536 + var_1_13)))) && ((0 < (last_1_var_1_13 + 1)) || ((last_1_var_1_13 % 65536) == (var_1_1 % 65536)))) && (((2 * last_1_var_1_13) + 1) <= (last_1_var_1_13 * last_1_var_1_13))) || (((((((last_1_var_1_13 * last_1_var_1_13) <= (2 * last_1_var_1_13)) && (var_1_7 == 0)) && (1 <= (var_1_12 % 256))) && ((var_1_9 < (var_1_10 + 1)) || (var_1_8 < (var_1_10 + 1)))) && (var_1_1 == last_1_var_1_13)) && ((var_1_1 % 65536) == var_1_13))) || (((((256 == last_1_var_1_13) && (var_1_7 == 0)) && (1 <= (var_1_12 % 256))) && (last_1_var_1_7 == 0)) && (256 == var_1_13))) || ((((!(((var_1_7 % 256) == 0)) && ((last_1_var_1_13 * last_1_var_1_13) <= (2 * last_1_var_1_13))) && (1 <= (var_1_12 % 256))) && (var_1_1 == last_1_var_1_13)) && ((var_1_1 % 65536) == var_1_13))) || ((((((((32767 < (var_1_1 % 65536)) || ((var_1_1 % 65536) == var_1_13)) && (var_1_7 == 0)) && (1 <= (var_1_12 % 256))) && (((var_1_1 % 65536) < 32768) || ((var_1_1 % 65536) == (65536 + var_1_13)))) && ((0 < (last_1_var_1_13 + 1)) || ((last_1_var_1_13 % 65536) == (var_1_1 % 65536)))) && ((var_1_9 < (var_1_10 + 1)) || (var_1_8 < (var_1_10 + 1)))) && (((2 * last_1_var_1_13) + 1) <= (last_1_var_1_13 * last_1_var_1_13)))) RESULT: Ultimate proved your program to be correct! [2023-12-19 10:51:54,324 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...