/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/ludcmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 09:00:22,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 09:00:22,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 09:00:23,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-28 09:00:23,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-28 09:00:23,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-28 09:00:23,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-28 09:00:23,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-28 09:00:23,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-28 09:00:23,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-28 09:00:23,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-28 09:00:23,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-28 09:00:23,066 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-28 09:00:23,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-28 09:00:23,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-28 09:00:23,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-28 09:00:23,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-28 09:00:23,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-28 09:00:23,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 09:00:23,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 09:00:23,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 09:00:23,081 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-28 09:00:23,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 09:00:23,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 09:00:23,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 09:00:23,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 09:00:23,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 09:00:23,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-28 09:00:23,092 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-28 09:00:23,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 09:00:23,093 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-28 09:00:23,093 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 09:00:23,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 09:00:23,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 09:00:23,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 09:00:23,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 09:00:23,309 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 09:00:23,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/ludcmp.c [2022-04-28 09:00:23,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e510c5949/f18489868fa6435187380d51cd1b7121/FLAG9150de824 [2022-04-28 09:00:23,652 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 09:00:23,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/ludcmp.c [2022-04-28 09:00:23,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e510c5949/f18489868fa6435187380d51cd1b7121/FLAG9150de824 [2022-04-28 09:00:24,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e510c5949/f18489868fa6435187380d51cd1b7121 [2022-04-28 09:00:24,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 09:00:24,072 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-28 09:00:24,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 09:00:24,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 09:00:24,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 09:00:24,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e32554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24, skipping insertion in model container [2022-04-28 09:00:24,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 09:00:24,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 09:00:24,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/ludcmp.c[318,331] [2022-04-28 09:00:24,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 09:00:24,266 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 09:00:24,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/ludcmp.c[318,331] [2022-04-28 09:00:24,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 09:00:24,319 INFO L208 MainTranslator]: Completed translation [2022-04-28 09:00:24,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24 WrapperNode [2022-04-28 09:00:24,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 09:00:24,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 09:00:24,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 09:00:24,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 09:00:24,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 09:00:24,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 09:00:24,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 09:00:24,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 09:00:24,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (1/1) ... [2022-04-28 09:00:24,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 09:00:24,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:24,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-28 09:00:24,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2022-04-28 09:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 09:00:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-04-28 09:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 09:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 09:00:24,468 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 09:00:24,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 09:00:24,724 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 09:00:24,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 09:00:24,729 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-28 09:00:24,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:00:24 BoogieIcfgContainer [2022-04-28 09:00:24,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 09:00:24,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 09:00:24,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 09:00:24,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 09:00:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:00:24" (1/3) ... [2022-04-28 09:00:24,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56975702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:00:24, skipping insertion in model container [2022-04-28 09:00:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:00:24" (2/3) ... [2022-04-28 09:00:24,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56975702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:00:24, skipping insertion in model container [2022-04-28 09:00:24,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:00:24" (3/3) ... [2022-04-28 09:00:24,740 INFO L111 eAbstractionObserver]: Analyzing ICFG ludcmp.c [2022-04-28 09:00:24,749 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-28 09:00:24,750 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 09:00:24,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 09:00:24,792 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a3311d2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e574cda [2022-04-28 09:00:24,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 09:00:24,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 53 states have internal predecessors, (81), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-28 09:00:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-28 09:00:24,803 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:24,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:24,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:24,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1448102218, now seen corresponding path program 1 times [2022-04-28 09:00:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:24,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [462113148] [2022-04-28 09:00:24,819 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 09:00:24,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1448102218, now seen corresponding path program 2 times [2022-04-28 09:00:24,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:24,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658884787] [2022-04-28 09:00:24,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:24,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:25,006 INFO L290 TraceCheckUtils]: 0: Hoare triple {72#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {67#true} is VALID [2022-04-28 09:00:25,006 INFO L290 TraceCheckUtils]: 1: Hoare triple {67#true} assume true; {67#true} is VALID [2022-04-28 09:00:25,007 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {67#true} {67#true} #214#return; {67#true} is VALID [2022-04-28 09:00:25,009 INFO L272 TraceCheckUtils]: 0: Hoare triple {67#true} call ULTIMATE.init(); {72#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:25,009 INFO L290 TraceCheckUtils]: 1: Hoare triple {72#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {67#true} is VALID [2022-04-28 09:00:25,009 INFO L290 TraceCheckUtils]: 2: Hoare triple {67#true} assume true; {67#true} is VALID [2022-04-28 09:00:25,009 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {67#true} {67#true} #214#return; {67#true} is VALID [2022-04-28 09:00:25,009 INFO L272 TraceCheckUtils]: 4: Hoare triple {67#true} call #t~ret37 := main(); {67#true} is VALID [2022-04-28 09:00:25,010 INFO L290 TraceCheckUtils]: 5: Hoare triple {67#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {67#true} is VALID [2022-04-28 09:00:25,010 INFO L290 TraceCheckUtils]: 6: Hoare triple {67#true} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {67#true} is VALID [2022-04-28 09:00:25,011 INFO L290 TraceCheckUtils]: 7: Hoare triple {67#true} assume !true; {68#false} is VALID [2022-04-28 09:00:25,011 INFO L272 TraceCheckUtils]: 8: Hoare triple {68#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {68#false} is VALID [2022-04-28 09:00:25,011 INFO L290 TraceCheckUtils]: 9: Hoare triple {68#false} ~cond := #in~cond; {68#false} is VALID [2022-04-28 09:00:25,011 INFO L290 TraceCheckUtils]: 10: Hoare triple {68#false} assume 0 == ~cond; {68#false} is VALID [2022-04-28 09:00:25,011 INFO L290 TraceCheckUtils]: 11: Hoare triple {68#false} assume !false; {68#false} is VALID [2022-04-28 09:00:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:25,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:25,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658884787] [2022-04-28 09:00:25,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658884787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:25,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:25,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 09:00:25,017 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:25,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [462113148] [2022-04-28 09:00:25,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [462113148] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:25,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:25,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 09:00:25,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117879844] [2022-04-28 09:00:25,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:25,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-28 09:00:25,024 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:25,027 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,048 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-28 09:00:25,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-28 09:00:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 09:00:25,072 INFO L87 Difference]: Start difference. First operand has 64 states, 52 states have (on average 1.5576923076923077) internal successors, (81), 53 states have internal predecessors, (81), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,407 INFO L93 Difference]: Finished difference Result 147 states and 225 transitions. [2022-04-28 09:00:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-28 09:00:25,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-28 09:00:25,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:25,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-04-28 09:00:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-04-28 09:00:25,425 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 225 transitions. [2022-04-28 09:00:25,596 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 225 edges. 225 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,603 INFO L225 Difference]: With dead ends: 147 [2022-04-28 09:00:25,603 INFO L226 Difference]: Without dead ends: 24 [2022-04-28 09:00:25,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 09:00:25,609 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:25,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 73 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 09:00:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-04-28 09:00:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-04-28 09:00:25,631 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:25,631 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,632 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,633 INFO L87 Difference]: Start difference. First operand 24 states. Second operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,636 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-04-28 09:00:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-04-28 09:00:25,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:25,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:25,637 INFO L74 IsIncluded]: Start isIncluded. First operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 24 states. [2022-04-28 09:00:25,637 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 24 states. [2022-04-28 09:00:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,639 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-04-28 09:00:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-04-28 09:00:25,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:25,640 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:25,640 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:25,640 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-04-28 09:00:25,643 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2022-04-28 09:00:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:25,644 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-04-28 09:00:25,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,647 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 20 states and 22 transitions. [2022-04-28 09:00:25,669 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,669 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-04-28 09:00:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-28 09:00:25,670 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:25,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:25,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 09:00:25,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1436096445, now seen corresponding path program 1 times [2022-04-28 09:00:25,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:25,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [393797500] [2022-04-28 09:00:25,675 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 09:00:25,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1436096445, now seen corresponding path program 2 times [2022-04-28 09:00:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:25,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830488253] [2022-04-28 09:00:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:25,785 INFO L290 TraceCheckUtils]: 0: Hoare triple {464#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {457#true} is VALID [2022-04-28 09:00:25,786 INFO L290 TraceCheckUtils]: 1: Hoare triple {457#true} assume true; {457#true} is VALID [2022-04-28 09:00:25,786 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {457#true} {457#true} #214#return; {457#true} is VALID [2022-04-28 09:00:25,787 INFO L272 TraceCheckUtils]: 0: Hoare triple {457#true} call ULTIMATE.init(); {464#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:25,787 INFO L290 TraceCheckUtils]: 1: Hoare triple {464#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {457#true} is VALID [2022-04-28 09:00:25,787 INFO L290 TraceCheckUtils]: 2: Hoare triple {457#true} assume true; {457#true} is VALID [2022-04-28 09:00:25,787 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {457#true} {457#true} #214#return; {457#true} is VALID [2022-04-28 09:00:25,787 INFO L272 TraceCheckUtils]: 4: Hoare triple {457#true} call #t~ret37 := main(); {457#true} is VALID [2022-04-28 09:00:25,788 INFO L290 TraceCheckUtils]: 5: Hoare triple {457#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {462#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:25,789 INFO L290 TraceCheckUtils]: 6: Hoare triple {462#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {463#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:25,789 INFO L290 TraceCheckUtils]: 7: Hoare triple {463#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {458#false} is VALID [2022-04-28 09:00:25,789 INFO L272 TraceCheckUtils]: 8: Hoare triple {458#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {458#false} is VALID [2022-04-28 09:00:25,789 INFO L290 TraceCheckUtils]: 9: Hoare triple {458#false} ~cond := #in~cond; {458#false} is VALID [2022-04-28 09:00:25,789 INFO L290 TraceCheckUtils]: 10: Hoare triple {458#false} assume 0 == ~cond; {458#false} is VALID [2022-04-28 09:00:25,789 INFO L290 TraceCheckUtils]: 11: Hoare triple {458#false} assume !false; {458#false} is VALID [2022-04-28 09:00:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:25,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:25,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830488253] [2022-04-28 09:00:25,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830488253] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:25,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:25,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 09:00:25,791 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:25,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [393797500] [2022-04-28 09:00:25,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [393797500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:25,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:25,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 09:00:25,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021415737] [2022-04-28 09:00:25,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:25,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-28 09:00:25,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:25,793 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,801 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 09:00:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 09:00:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-28 09:00:25,802 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,917 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2022-04-28 09:00:25,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-28 09:00:25,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-28 09:00:25,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2022-04-28 09:00:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2022-04-28 09:00:25,920 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2022-04-28 09:00:25,951 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,952 INFO L225 Difference]: With dead ends: 40 [2022-04-28 09:00:25,952 INFO L226 Difference]: Without dead ends: 26 [2022-04-28 09:00:25,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-28 09:00:25,954 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:25,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 25 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 09:00:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-28 09:00:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2022-04-28 09:00:25,958 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:25,958 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,958 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,958 INFO L87 Difference]: Start difference. First operand 26 states. Second operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,959 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-28 09:00:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-28 09:00:25,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:25,960 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:25,960 INFO L74 IsIncluded]: Start isIncluded. First operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 26 states. [2022-04-28 09:00:25,960 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 26 states. [2022-04-28 09:00:25,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:25,961 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-28 09:00:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-28 09:00:25,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:25,961 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:25,961 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:25,961 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-04-28 09:00:25,962 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2022-04-28 09:00:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-04-28 09:00:25,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:25,962 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 21 states and 23 transitions. [2022-04-28 09:00:25,980 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-04-28 09:00:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-28 09:00:25,981 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:25,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:25,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-28 09:00:25,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1858105272, now seen corresponding path program 1 times [2022-04-28 09:00:25,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:25,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [546875068] [2022-04-28 09:00:25,988 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:25,988 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1858105272, now seen corresponding path program 2 times [2022-04-28 09:00:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443226650] [2022-04-28 09:00:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,055 INFO L290 TraceCheckUtils]: 0: Hoare triple {653#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {645#true} is VALID [2022-04-28 09:00:26,055 INFO L290 TraceCheckUtils]: 1: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-28 09:00:26,056 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-28 09:00:26,056 INFO L272 TraceCheckUtils]: 0: Hoare triple {645#true} call ULTIMATE.init(); {653#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:26,057 INFO L290 TraceCheckUtils]: 1: Hoare triple {653#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {645#true} is VALID [2022-04-28 09:00:26,057 INFO L290 TraceCheckUtils]: 2: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-28 09:00:26,057 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-28 09:00:26,057 INFO L272 TraceCheckUtils]: 4: Hoare triple {645#true} call #t~ret37 := main(); {645#true} is VALID [2022-04-28 09:00:26,057 INFO L290 TraceCheckUtils]: 5: Hoare triple {645#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {650#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:26,058 INFO L290 TraceCheckUtils]: 6: Hoare triple {650#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:26,058 INFO L290 TraceCheckUtils]: 7: Hoare triple {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:26,059 INFO L290 TraceCheckUtils]: 8: Hoare triple {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:26,059 INFO L290 TraceCheckUtils]: 9: Hoare triple {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:26,060 INFO L290 TraceCheckUtils]: 10: Hoare triple {651#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {652#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:26,060 INFO L290 TraceCheckUtils]: 11: Hoare triple {652#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {646#false} is VALID [2022-04-28 09:00:26,060 INFO L272 TraceCheckUtils]: 12: Hoare triple {646#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {646#false} is VALID [2022-04-28 09:00:26,060 INFO L290 TraceCheckUtils]: 13: Hoare triple {646#false} ~cond := #in~cond; {646#false} is VALID [2022-04-28 09:00:26,061 INFO L290 TraceCheckUtils]: 14: Hoare triple {646#false} assume 0 == ~cond; {646#false} is VALID [2022-04-28 09:00:26,061 INFO L290 TraceCheckUtils]: 15: Hoare triple {646#false} assume !false; {646#false} is VALID [2022-04-28 09:00:26,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:26,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:26,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443226650] [2022-04-28 09:00:26,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443226650] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:26,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320194250] [2022-04-28 09:00:26,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 09:00:26,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:26,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:26,063 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) [2022-04-28 09:00:26,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 09:00:26,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 09:00:26,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:26,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-28 09:00:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:26,242 INFO L272 TraceCheckUtils]: 0: Hoare triple {645#true} call ULTIMATE.init(); {645#true} is VALID [2022-04-28 09:00:26,242 INFO L290 TraceCheckUtils]: 1: Hoare triple {645#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {645#true} is VALID [2022-04-28 09:00:26,243 INFO L290 TraceCheckUtils]: 2: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-28 09:00:26,243 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-28 09:00:26,243 INFO L272 TraceCheckUtils]: 4: Hoare triple {645#true} call #t~ret37 := main(); {645#true} is VALID [2022-04-28 09:00:26,243 INFO L290 TraceCheckUtils]: 5: Hoare triple {645#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {672#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:26,244 INFO L290 TraceCheckUtils]: 6: Hoare triple {672#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:26,244 INFO L290 TraceCheckUtils]: 7: Hoare triple {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:26,245 INFO L290 TraceCheckUtils]: 8: Hoare triple {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:26,245 INFO L290 TraceCheckUtils]: 9: Hoare triple {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:26,246 INFO L290 TraceCheckUtils]: 10: Hoare triple {676#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {689#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:26,246 INFO L290 TraceCheckUtils]: 11: Hoare triple {689#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~j~0 <= ~n~0); {646#false} is VALID [2022-04-28 09:00:26,246 INFO L272 TraceCheckUtils]: 12: Hoare triple {646#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {646#false} is VALID [2022-04-28 09:00:26,246 INFO L290 TraceCheckUtils]: 13: Hoare triple {646#false} ~cond := #in~cond; {646#false} is VALID [2022-04-28 09:00:26,246 INFO L290 TraceCheckUtils]: 14: Hoare triple {646#false} assume 0 == ~cond; {646#false} is VALID [2022-04-28 09:00:26,247 INFO L290 TraceCheckUtils]: 15: Hoare triple {646#false} assume !false; {646#false} is VALID [2022-04-28 09:00:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:26,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:26,329 INFO L290 TraceCheckUtils]: 15: Hoare triple {646#false} assume !false; {646#false} is VALID [2022-04-28 09:00:26,329 INFO L290 TraceCheckUtils]: 14: Hoare triple {646#false} assume 0 == ~cond; {646#false} is VALID [2022-04-28 09:00:26,329 INFO L290 TraceCheckUtils]: 13: Hoare triple {646#false} ~cond := #in~cond; {646#false} is VALID [2022-04-28 09:00:26,329 INFO L272 TraceCheckUtils]: 12: Hoare triple {646#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {646#false} is VALID [2022-04-28 09:00:26,330 INFO L290 TraceCheckUtils]: 11: Hoare triple {717#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {646#false} is VALID [2022-04-28 09:00:26,330 INFO L290 TraceCheckUtils]: 10: Hoare triple {721#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {717#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:26,331 INFO L290 TraceCheckUtils]: 9: Hoare triple {721#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {721#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:26,331 INFO L290 TraceCheckUtils]: 8: Hoare triple {721#(<= (+ main_~j~0 1) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {721#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:26,331 INFO L290 TraceCheckUtils]: 7: Hoare triple {721#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {721#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:26,332 INFO L290 TraceCheckUtils]: 6: Hoare triple {734#(<= 1 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {721#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:26,332 INFO L290 TraceCheckUtils]: 5: Hoare triple {645#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {734#(<= 1 main_~n~0)} is VALID [2022-04-28 09:00:26,332 INFO L272 TraceCheckUtils]: 4: Hoare triple {645#true} call #t~ret37 := main(); {645#true} is VALID [2022-04-28 09:00:26,332 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-28 09:00:26,333 INFO L290 TraceCheckUtils]: 2: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-28 09:00:26,333 INFO L290 TraceCheckUtils]: 1: Hoare triple {645#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {645#true} is VALID [2022-04-28 09:00:26,333 INFO L272 TraceCheckUtils]: 0: Hoare triple {645#true} call ULTIMATE.init(); {645#true} is VALID [2022-04-28 09:00:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:26,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320194250] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:26,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:26,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-04-28 09:00:26,334 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:26,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [546875068] [2022-04-28 09:00:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [546875068] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:26,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:26,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 09:00:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811555119] [2022-04-28 09:00:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:26,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-04-28 09:00:26,351 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:26,351 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:26,362 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:26,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-28 09:00:26,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:26,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-28 09:00:26,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-04-28 09:00:26,363 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:26,489 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-04-28 09:00:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-28 09:00:26,489 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-04-28 09:00:26,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:26,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:26,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2022-04-28 09:00:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2022-04-28 09:00:26,492 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 51 transitions. [2022-04-28 09:00:26,529 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:26,530 INFO L225 Difference]: With dead ends: 45 [2022-04-28 09:00:26,530 INFO L226 Difference]: Without dead ends: 30 [2022-04-28 09:00:26,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-28 09:00:26,531 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:26,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 09:00:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-28 09:00:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-04-28 09:00:26,537 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:26,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:26,537 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:26,538 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:26,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:26,538 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-04-28 09:00:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-04-28 09:00:26,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:26,539 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:26,539 INFO L74 IsIncluded]: Start isIncluded. First operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 30 states. [2022-04-28 09:00:26,539 INFO L87 Difference]: Start difference. First operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 30 states. [2022-04-28 09:00:26,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:26,540 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-04-28 09:00:26,540 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-04-28 09:00:26,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:26,540 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:26,540 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:26,540 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-04-28 09:00:26,541 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2022-04-28 09:00:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:26,541 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-04-28 09:00:26,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:26,542 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 25 states and 28 transitions. [2022-04-28 09:00:26,563 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-04-28 09:00:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-28 09:00:26,564 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:26,564 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:26,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:26,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:26,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:26,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1949651507, now seen corresponding path program 3 times [2022-04-28 09:00:26,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:26,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1217318700] [2022-04-28 09:00:26,785 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:26,785 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1949651507, now seen corresponding path program 4 times [2022-04-28 09:00:26,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:26,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735836384] [2022-04-28 09:00:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:26,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,851 INFO L290 TraceCheckUtils]: 0: Hoare triple {967#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {959#true} is VALID [2022-04-28 09:00:26,851 INFO L290 TraceCheckUtils]: 1: Hoare triple {959#true} assume true; {959#true} is VALID [2022-04-28 09:00:26,851 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {959#true} {959#true} #214#return; {959#true} is VALID [2022-04-28 09:00:26,852 INFO L272 TraceCheckUtils]: 0: Hoare triple {959#true} call ULTIMATE.init(); {967#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:26,852 INFO L290 TraceCheckUtils]: 1: Hoare triple {967#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {959#true} is VALID [2022-04-28 09:00:26,852 INFO L290 TraceCheckUtils]: 2: Hoare triple {959#true} assume true; {959#true} is VALID [2022-04-28 09:00:26,852 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {959#true} {959#true} #214#return; {959#true} is VALID [2022-04-28 09:00:26,853 INFO L272 TraceCheckUtils]: 4: Hoare triple {959#true} call #t~ret37 := main(); {959#true} is VALID [2022-04-28 09:00:26,853 INFO L290 TraceCheckUtils]: 5: Hoare triple {959#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {964#(= main_~i~0 0)} is VALID [2022-04-28 09:00:26,853 INFO L290 TraceCheckUtils]: 6: Hoare triple {964#(= main_~i~0 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {965#(and (= main_~j~0 0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,854 INFO L290 TraceCheckUtils]: 7: Hoare triple {965#(and (= main_~j~0 0) (= main_~i~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {965#(and (= main_~j~0 0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,854 INFO L290 TraceCheckUtils]: 8: Hoare triple {965#(and (= main_~j~0 0) (= main_~i~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {965#(and (= main_~j~0 0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,855 INFO L290 TraceCheckUtils]: 9: Hoare triple {965#(and (= main_~j~0 0) (= main_~i~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {965#(and (= main_~j~0 0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,855 INFO L290 TraceCheckUtils]: 10: Hoare triple {965#(and (= main_~j~0 0) (= main_~i~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {966#(and (<= 1 main_~j~0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,855 INFO L290 TraceCheckUtils]: 11: Hoare triple {966#(and (<= 1 main_~j~0) (= main_~i~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {966#(and (<= 1 main_~j~0) (= main_~i~0 0))} is VALID [2022-04-28 09:00:26,856 INFO L290 TraceCheckUtils]: 12: Hoare triple {966#(and (<= 1 main_~j~0) (= main_~i~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {960#false} is VALID [2022-04-28 09:00:26,856 INFO L290 TraceCheckUtils]: 13: Hoare triple {960#false} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {960#false} is VALID [2022-04-28 09:00:26,856 INFO L290 TraceCheckUtils]: 14: Hoare triple {960#false} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {960#false} is VALID [2022-04-28 09:00:26,856 INFO L290 TraceCheckUtils]: 15: Hoare triple {960#false} assume !(~j~0 <= ~n~0); {960#false} is VALID [2022-04-28 09:00:26,856 INFO L272 TraceCheckUtils]: 16: Hoare triple {960#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {960#false} is VALID [2022-04-28 09:00:26,857 INFO L290 TraceCheckUtils]: 17: Hoare triple {960#false} ~cond := #in~cond; {960#false} is VALID [2022-04-28 09:00:26,857 INFO L290 TraceCheckUtils]: 18: Hoare triple {960#false} assume 0 == ~cond; {960#false} is VALID [2022-04-28 09:00:26,857 INFO L290 TraceCheckUtils]: 19: Hoare triple {960#false} assume !false; {960#false} is VALID [2022-04-28 09:00:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:26,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:26,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735836384] [2022-04-28 09:00:26,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735836384] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:26,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967018066] [2022-04-28 09:00:26,857 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-28 09:00:26,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:26,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:26,884 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) [2022-04-28 09:00:26,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 09:00:26,950 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-28 09:00:26,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:26,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-28 09:00:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:26,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:27,101 INFO L272 TraceCheckUtils]: 0: Hoare triple {959#true} call ULTIMATE.init(); {959#true} is VALID [2022-04-28 09:00:27,101 INFO L290 TraceCheckUtils]: 1: Hoare triple {959#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {959#true} is VALID [2022-04-28 09:00:27,101 INFO L290 TraceCheckUtils]: 2: Hoare triple {959#true} assume true; {959#true} is VALID [2022-04-28 09:00:27,101 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {959#true} {959#true} #214#return; {959#true} is VALID [2022-04-28 09:00:27,102 INFO L272 TraceCheckUtils]: 4: Hoare triple {959#true} call #t~ret37 := main(); {959#true} is VALID [2022-04-28 09:00:27,102 INFO L290 TraceCheckUtils]: 5: Hoare triple {959#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {986#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:27,102 INFO L290 TraceCheckUtils]: 6: Hoare triple {986#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:27,103 INFO L290 TraceCheckUtils]: 7: Hoare triple {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:27,103 INFO L290 TraceCheckUtils]: 8: Hoare triple {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:27,104 INFO L290 TraceCheckUtils]: 9: Hoare triple {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:27,104 INFO L290 TraceCheckUtils]: 10: Hoare triple {990#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:27,105 INFO L290 TraceCheckUtils]: 11: Hoare triple {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:27,105 INFO L290 TraceCheckUtils]: 12: Hoare triple {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:27,105 INFO L290 TraceCheckUtils]: 13: Hoare triple {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:27,106 INFO L290 TraceCheckUtils]: 14: Hoare triple {1003#(and (<= 5 main_~n~0) (<= main_~j~0 1))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1016#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:27,106 INFO L290 TraceCheckUtils]: 15: Hoare triple {1016#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !(~j~0 <= ~n~0); {960#false} is VALID [2022-04-28 09:00:27,106 INFO L272 TraceCheckUtils]: 16: Hoare triple {960#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {960#false} is VALID [2022-04-28 09:00:27,107 INFO L290 TraceCheckUtils]: 17: Hoare triple {960#false} ~cond := #in~cond; {960#false} is VALID [2022-04-28 09:00:27,107 INFO L290 TraceCheckUtils]: 18: Hoare triple {960#false} assume 0 == ~cond; {960#false} is VALID [2022-04-28 09:00:27,107 INFO L290 TraceCheckUtils]: 19: Hoare triple {960#false} assume !false; {960#false} is VALID [2022-04-28 09:00:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:27,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:27,205 INFO L290 TraceCheckUtils]: 19: Hoare triple {960#false} assume !false; {960#false} is VALID [2022-04-28 09:00:27,205 INFO L290 TraceCheckUtils]: 18: Hoare triple {960#false} assume 0 == ~cond; {960#false} is VALID [2022-04-28 09:00:27,205 INFO L290 TraceCheckUtils]: 17: Hoare triple {960#false} ~cond := #in~cond; {960#false} is VALID [2022-04-28 09:00:27,205 INFO L272 TraceCheckUtils]: 16: Hoare triple {960#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {960#false} is VALID [2022-04-28 09:00:27,206 INFO L290 TraceCheckUtils]: 15: Hoare triple {1044#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {960#false} is VALID [2022-04-28 09:00:27,206 INFO L290 TraceCheckUtils]: 14: Hoare triple {1048#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1044#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:27,206 INFO L290 TraceCheckUtils]: 13: Hoare triple {1048#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1048#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:27,207 INFO L290 TraceCheckUtils]: 12: Hoare triple {1048#(<= (+ main_~j~0 1) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1048#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:27,207 INFO L290 TraceCheckUtils]: 11: Hoare triple {1048#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1048#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:27,208 INFO L290 TraceCheckUtils]: 10: Hoare triple {1061#(<= (+ main_~j~0 2) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1048#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:27,208 INFO L290 TraceCheckUtils]: 9: Hoare triple {1061#(<= (+ main_~j~0 2) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1061#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:27,208 INFO L290 TraceCheckUtils]: 8: Hoare triple {1061#(<= (+ main_~j~0 2) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1061#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:27,209 INFO L290 TraceCheckUtils]: 7: Hoare triple {1061#(<= (+ main_~j~0 2) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1061#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:27,209 INFO L290 TraceCheckUtils]: 6: Hoare triple {1074#(<= 2 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1061#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:27,209 INFO L290 TraceCheckUtils]: 5: Hoare triple {959#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1074#(<= 2 main_~n~0)} is VALID [2022-04-28 09:00:27,210 INFO L272 TraceCheckUtils]: 4: Hoare triple {959#true} call #t~ret37 := main(); {959#true} is VALID [2022-04-28 09:00:27,210 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {959#true} {959#true} #214#return; {959#true} is VALID [2022-04-28 09:00:27,210 INFO L290 TraceCheckUtils]: 2: Hoare triple {959#true} assume true; {959#true} is VALID [2022-04-28 09:00:27,210 INFO L290 TraceCheckUtils]: 1: Hoare triple {959#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {959#true} is VALID [2022-04-28 09:00:27,210 INFO L272 TraceCheckUtils]: 0: Hoare triple {959#true} call ULTIMATE.init(); {959#true} is VALID [2022-04-28 09:00:27,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:27,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967018066] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:27,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:27,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-04-28 09:00:27,211 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:27,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1217318700] [2022-04-28 09:00:27,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1217318700] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:27,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:27,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 09:00:27,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408323312] [2022-04-28 09:00:27,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-04-28 09:00:27,211 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:27,212 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:27,224 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:27,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-28 09:00:27,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:27,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-28 09:00:27,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-04-28 09:00:27,225 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:27,379 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2022-04-28 09:00:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-28 09:00:27,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-04-28 09:00:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 54 transitions. [2022-04-28 09:00:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 54 transitions. [2022-04-28 09:00:27,382 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 54 transitions. [2022-04-28 09:00:27,422 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:27,423 INFO L225 Difference]: With dead ends: 57 [2022-04-28 09:00:27,423 INFO L226 Difference]: Without dead ends: 38 [2022-04-28 09:00:27,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-04-28 09:00:27,424 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:27,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 26 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 09:00:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-04-28 09:00:27,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2022-04-28 09:00:27,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:27,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:27,435 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:27,436 INFO L87 Difference]: Start difference. First operand 38 states. Second operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:27,437 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-04-28 09:00:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-04-28 09:00:27,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:27,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:27,437 INFO L74 IsIncluded]: Start isIncluded. First operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 38 states. [2022-04-28 09:00:27,437 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 38 states. [2022-04-28 09:00:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:27,439 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-04-28 09:00:27,439 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-04-28 09:00:27,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:27,439 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:27,439 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:27,439 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-04-28 09:00:27,440 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2022-04-28 09:00:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:27,440 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-04-28 09:00:27,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:27,440 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 35 states and 39 transitions. [2022-04-28 09:00:27,472 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-04-28 09:00:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-28 09:00:27,472 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:27,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:27,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:27,680 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,SelfDestructingSolverStorable3 [2022-04-28 09:00:27,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1140304881, now seen corresponding path program 1 times [2022-04-28 09:00:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:27,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1258623643] [2022-04-28 09:00:27,686 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:27,687 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1140304881, now seen corresponding path program 2 times [2022-04-28 09:00:27,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:27,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286858081] [2022-04-28 09:00:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:27,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:27,798 INFO L290 TraceCheckUtils]: 0: Hoare triple {1368#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1359#true} is VALID [2022-04-28 09:00:27,798 INFO L290 TraceCheckUtils]: 1: Hoare triple {1359#true} assume true; {1359#true} is VALID [2022-04-28 09:00:27,799 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1359#true} {1359#true} #214#return; {1359#true} is VALID [2022-04-28 09:00:27,799 INFO L272 TraceCheckUtils]: 0: Hoare triple {1359#true} call ULTIMATE.init(); {1368#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:27,800 INFO L290 TraceCheckUtils]: 1: Hoare triple {1368#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1359#true} is VALID [2022-04-28 09:00:27,800 INFO L290 TraceCheckUtils]: 2: Hoare triple {1359#true} assume true; {1359#true} is VALID [2022-04-28 09:00:27,800 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1359#true} {1359#true} #214#return; {1359#true} is VALID [2022-04-28 09:00:27,800 INFO L272 TraceCheckUtils]: 4: Hoare triple {1359#true} call #t~ret37 := main(); {1359#true} is VALID [2022-04-28 09:00:27,800 INFO L290 TraceCheckUtils]: 5: Hoare triple {1359#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1364#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:27,801 INFO L290 TraceCheckUtils]: 6: Hoare triple {1364#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,801 INFO L290 TraceCheckUtils]: 7: Hoare triple {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,802 INFO L290 TraceCheckUtils]: 8: Hoare triple {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,802 INFO L290 TraceCheckUtils]: 9: Hoare triple {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,802 INFO L290 TraceCheckUtils]: 10: Hoare triple {1365#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,803 INFO L290 TraceCheckUtils]: 11: Hoare triple {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,803 INFO L290 TraceCheckUtils]: 12: Hoare triple {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,804 INFO L290 TraceCheckUtils]: 13: Hoare triple {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,804 INFO L290 TraceCheckUtils]: 14: Hoare triple {1366#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1367#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:27,804 INFO L290 TraceCheckUtils]: 15: Hoare triple {1367#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {1360#false} is VALID [2022-04-28 09:00:27,805 INFO L272 TraceCheckUtils]: 16: Hoare triple {1360#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1360#false} is VALID [2022-04-28 09:00:27,805 INFO L290 TraceCheckUtils]: 17: Hoare triple {1360#false} ~cond := #in~cond; {1360#false} is VALID [2022-04-28 09:00:27,805 INFO L290 TraceCheckUtils]: 18: Hoare triple {1360#false} assume 0 == ~cond; {1360#false} is VALID [2022-04-28 09:00:27,805 INFO L290 TraceCheckUtils]: 19: Hoare triple {1360#false} assume !false; {1360#false} is VALID [2022-04-28 09:00:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286858081] [2022-04-28 09:00:27,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286858081] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484370494] [2022-04-28 09:00:27,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 09:00:27,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:27,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:27,807 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) [2022-04-28 09:00:27,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-28 09:00:27,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 09:00:27,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:27,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-28 09:00:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:27,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:28,043 INFO L272 TraceCheckUtils]: 0: Hoare triple {1359#true} call ULTIMATE.init(); {1359#true} is VALID [2022-04-28 09:00:28,044 INFO L290 TraceCheckUtils]: 1: Hoare triple {1359#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1359#true} is VALID [2022-04-28 09:00:28,044 INFO L290 TraceCheckUtils]: 2: Hoare triple {1359#true} assume true; {1359#true} is VALID [2022-04-28 09:00:28,044 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1359#true} {1359#true} #214#return; {1359#true} is VALID [2022-04-28 09:00:28,044 INFO L272 TraceCheckUtils]: 4: Hoare triple {1359#true} call #t~ret37 := main(); {1359#true} is VALID [2022-04-28 09:00:28,044 INFO L290 TraceCheckUtils]: 5: Hoare triple {1359#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1387#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:28,044 INFO L290 TraceCheckUtils]: 6: Hoare triple {1387#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:28,045 INFO L290 TraceCheckUtils]: 7: Hoare triple {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:28,045 INFO L290 TraceCheckUtils]: 8: Hoare triple {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:28,046 INFO L290 TraceCheckUtils]: 9: Hoare triple {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:28,047 INFO L290 TraceCheckUtils]: 10: Hoare triple {1391#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:28,047 INFO L290 TraceCheckUtils]: 11: Hoare triple {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:28,047 INFO L290 TraceCheckUtils]: 12: Hoare triple {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~i~0 == ~j~0); {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:28,048 INFO L290 TraceCheckUtils]: 13: Hoare triple {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:28,048 INFO L290 TraceCheckUtils]: 14: Hoare triple {1404#(and (<= 5 main_~n~0) (<= main_~j~0 1))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1417#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:28,048 INFO L290 TraceCheckUtils]: 15: Hoare triple {1417#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !(~j~0 <= ~n~0); {1360#false} is VALID [2022-04-28 09:00:28,049 INFO L272 TraceCheckUtils]: 16: Hoare triple {1360#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1360#false} is VALID [2022-04-28 09:00:28,051 INFO L290 TraceCheckUtils]: 17: Hoare triple {1360#false} ~cond := #in~cond; {1360#false} is VALID [2022-04-28 09:00:28,051 INFO L290 TraceCheckUtils]: 18: Hoare triple {1360#false} assume 0 == ~cond; {1360#false} is VALID [2022-04-28 09:00:28,051 INFO L290 TraceCheckUtils]: 19: Hoare triple {1360#false} assume !false; {1360#false} is VALID [2022-04-28 09:00:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:28,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:28,202 INFO L290 TraceCheckUtils]: 19: Hoare triple {1360#false} assume !false; {1360#false} is VALID [2022-04-28 09:00:28,202 INFO L290 TraceCheckUtils]: 18: Hoare triple {1360#false} assume 0 == ~cond; {1360#false} is VALID [2022-04-28 09:00:28,202 INFO L290 TraceCheckUtils]: 17: Hoare triple {1360#false} ~cond := #in~cond; {1360#false} is VALID [2022-04-28 09:00:28,202 INFO L272 TraceCheckUtils]: 16: Hoare triple {1360#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1360#false} is VALID [2022-04-28 09:00:28,203 INFO L290 TraceCheckUtils]: 15: Hoare triple {1445#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {1360#false} is VALID [2022-04-28 09:00:28,203 INFO L290 TraceCheckUtils]: 14: Hoare triple {1449#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1445#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:28,203 INFO L290 TraceCheckUtils]: 13: Hoare triple {1449#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1449#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:28,204 INFO L290 TraceCheckUtils]: 12: Hoare triple {1449#(<= (+ main_~j~0 1) main_~n~0)} assume !(~i~0 == ~j~0); {1449#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:28,204 INFO L290 TraceCheckUtils]: 11: Hoare triple {1449#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1449#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:28,204 INFO L290 TraceCheckUtils]: 10: Hoare triple {1462#(<= (+ main_~j~0 2) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1449#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:28,205 INFO L290 TraceCheckUtils]: 9: Hoare triple {1462#(<= (+ main_~j~0 2) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1462#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:28,205 INFO L290 TraceCheckUtils]: 8: Hoare triple {1462#(<= (+ main_~j~0 2) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1462#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:28,205 INFO L290 TraceCheckUtils]: 7: Hoare triple {1462#(<= (+ main_~j~0 2) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1462#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:28,206 INFO L290 TraceCheckUtils]: 6: Hoare triple {1475#(<= 2 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1462#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:28,209 INFO L290 TraceCheckUtils]: 5: Hoare triple {1359#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1475#(<= 2 main_~n~0)} is VALID [2022-04-28 09:00:28,209 INFO L272 TraceCheckUtils]: 4: Hoare triple {1359#true} call #t~ret37 := main(); {1359#true} is VALID [2022-04-28 09:00:28,209 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1359#true} {1359#true} #214#return; {1359#true} is VALID [2022-04-28 09:00:28,210 INFO L290 TraceCheckUtils]: 2: Hoare triple {1359#true} assume true; {1359#true} is VALID [2022-04-28 09:00:28,210 INFO L290 TraceCheckUtils]: 1: Hoare triple {1359#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1359#true} is VALID [2022-04-28 09:00:28,210 INFO L272 TraceCheckUtils]: 0: Hoare triple {1359#true} call ULTIMATE.init(); {1359#true} is VALID [2022-04-28 09:00:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484370494] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:28,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2022-04-28 09:00:28,210 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1258623643] [2022-04-28 09:00:28,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1258623643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:28,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:28,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-28 09:00:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885381343] [2022-04-28 09:00:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:28,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-04-28 09:00:28,211 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:28,211 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:28,224 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:28,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-28 09:00:28,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-28 09:00:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-04-28 09:00:28,225 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:28,425 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2022-04-28 09:00:28,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-28 09:00:28,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-04-28 09:00:28,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:28,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 56 transitions. [2022-04-28 09:00:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 56 transitions. [2022-04-28 09:00:28,427 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 56 transitions. [2022-04-28 09:00:28,469 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:28,470 INFO L225 Difference]: With dead ends: 68 [2022-04-28 09:00:28,470 INFO L226 Difference]: Without dead ends: 49 [2022-04-28 09:00:28,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2022-04-28 09:00:28,470 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 28 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:28,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 09:00:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-04-28 09:00:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-04-28 09:00:28,495 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:28,495 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:28,495 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:28,496 INFO L87 Difference]: Start difference. First operand 49 states. Second operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:28,497 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-04-28 09:00:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-04-28 09:00:28,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:28,497 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:28,497 INFO L74 IsIncluded]: Start isIncluded. First operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 49 states. [2022-04-28 09:00:28,497 INFO L87 Difference]: Start difference. First operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 49 states. [2022-04-28 09:00:28,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:28,498 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-04-28 09:00:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-04-28 09:00:28,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:28,499 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:28,499 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:28,499 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-04-28 09:00:28,500 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 20 [2022-04-28 09:00:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:28,500 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-04-28 09:00:28,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:28,500 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 43 states and 48 transitions. [2022-04-28 09:00:28,569 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-04-28 09:00:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-28 09:00:28,570 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:28,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:28,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:28,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:28,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash -162258006, now seen corresponding path program 3 times [2022-04-28 09:00:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:28,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [661546450] [2022-04-28 09:00:28,810 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:28,810 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:28,810 INFO L85 PathProgramCache]: Analyzing trace with hash -162258006, now seen corresponding path program 4 times [2022-04-28 09:00:28,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:28,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786279769] [2022-04-28 09:00:28,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:28,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:28,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:28,895 INFO L290 TraceCheckUtils]: 0: Hoare triple {1830#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1820#true} is VALID [2022-04-28 09:00:28,895 INFO L290 TraceCheckUtils]: 1: Hoare triple {1820#true} assume true; {1820#true} is VALID [2022-04-28 09:00:28,895 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1820#true} {1820#true} #214#return; {1820#true} is VALID [2022-04-28 09:00:28,896 INFO L272 TraceCheckUtils]: 0: Hoare triple {1820#true} call ULTIMATE.init(); {1830#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:28,896 INFO L290 TraceCheckUtils]: 1: Hoare triple {1830#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1820#true} is VALID [2022-04-28 09:00:28,896 INFO L290 TraceCheckUtils]: 2: Hoare triple {1820#true} assume true; {1820#true} is VALID [2022-04-28 09:00:28,896 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1820#true} {1820#true} #214#return; {1820#true} is VALID [2022-04-28 09:00:28,896 INFO L272 TraceCheckUtils]: 4: Hoare triple {1820#true} call #t~ret37 := main(); {1820#true} is VALID [2022-04-28 09:00:28,897 INFO L290 TraceCheckUtils]: 5: Hoare triple {1820#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1825#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:28,897 INFO L290 TraceCheckUtils]: 6: Hoare triple {1825#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,898 INFO L290 TraceCheckUtils]: 7: Hoare triple {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,899 INFO L290 TraceCheckUtils]: 8: Hoare triple {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,899 INFO L290 TraceCheckUtils]: 9: Hoare triple {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,899 INFO L290 TraceCheckUtils]: 10: Hoare triple {1826#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,900 INFO L290 TraceCheckUtils]: 11: Hoare triple {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,900 INFO L290 TraceCheckUtils]: 12: Hoare triple {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,900 INFO L290 TraceCheckUtils]: 13: Hoare triple {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,901 INFO L290 TraceCheckUtils]: 14: Hoare triple {1827#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,901 INFO L290 TraceCheckUtils]: 15: Hoare triple {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,902 INFO L290 TraceCheckUtils]: 16: Hoare triple {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,902 INFO L290 TraceCheckUtils]: 17: Hoare triple {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:28,902 INFO L290 TraceCheckUtils]: 18: Hoare triple {1828#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1829#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:28,903 INFO L290 TraceCheckUtils]: 19: Hoare triple {1829#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} assume !(~j~0 <= ~n~0); {1821#false} is VALID [2022-04-28 09:00:28,903 INFO L272 TraceCheckUtils]: 20: Hoare triple {1821#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1821#false} is VALID [2022-04-28 09:00:28,903 INFO L290 TraceCheckUtils]: 21: Hoare triple {1821#false} ~cond := #in~cond; {1821#false} is VALID [2022-04-28 09:00:28,903 INFO L290 TraceCheckUtils]: 22: Hoare triple {1821#false} assume 0 == ~cond; {1821#false} is VALID [2022-04-28 09:00:28,903 INFO L290 TraceCheckUtils]: 23: Hoare triple {1821#false} assume !false; {1821#false} is VALID [2022-04-28 09:00:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:28,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:28,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786279769] [2022-04-28 09:00:28,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786279769] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:28,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281500060] [2022-04-28 09:00:28,904 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-28 09:00:28,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:28,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:28,920 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) [2022-04-28 09:00:28,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-28 09:00:28,976 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-28 09:00:28,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:28,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-28 09:00:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:28,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:29,166 INFO L272 TraceCheckUtils]: 0: Hoare triple {1820#true} call ULTIMATE.init(); {1820#true} is VALID [2022-04-28 09:00:29,166 INFO L290 TraceCheckUtils]: 1: Hoare triple {1820#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1820#true} is VALID [2022-04-28 09:00:29,166 INFO L290 TraceCheckUtils]: 2: Hoare triple {1820#true} assume true; {1820#true} is VALID [2022-04-28 09:00:29,166 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1820#true} {1820#true} #214#return; {1820#true} is VALID [2022-04-28 09:00:29,166 INFO L272 TraceCheckUtils]: 4: Hoare triple {1820#true} call #t~ret37 := main(); {1820#true} is VALID [2022-04-28 09:00:29,167 INFO L290 TraceCheckUtils]: 5: Hoare triple {1820#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1849#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:29,167 INFO L290 TraceCheckUtils]: 6: Hoare triple {1849#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:29,168 INFO L290 TraceCheckUtils]: 7: Hoare triple {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:29,168 INFO L290 TraceCheckUtils]: 8: Hoare triple {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:29,168 INFO L290 TraceCheckUtils]: 9: Hoare triple {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:29,169 INFO L290 TraceCheckUtils]: 10: Hoare triple {1853#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:29,169 INFO L290 TraceCheckUtils]: 11: Hoare triple {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:29,170 INFO L290 TraceCheckUtils]: 12: Hoare triple {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~i~0 == ~j~0); {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:29,171 INFO L290 TraceCheckUtils]: 13: Hoare triple {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:29,172 INFO L290 TraceCheckUtils]: 14: Hoare triple {1866#(and (<= 5 main_~n~0) (<= main_~j~0 1))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:29,173 INFO L290 TraceCheckUtils]: 15: Hoare triple {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:29,174 INFO L290 TraceCheckUtils]: 16: Hoare triple {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !(~i~0 == ~j~0); {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:29,175 INFO L290 TraceCheckUtils]: 17: Hoare triple {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:29,175 INFO L290 TraceCheckUtils]: 18: Hoare triple {1879#(and (<= 5 main_~n~0) (<= main_~j~0 2))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1892#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:29,176 INFO L290 TraceCheckUtils]: 19: Hoare triple {1892#(and (<= 5 main_~n~0) (<= main_~j~0 3))} assume !(~j~0 <= ~n~0); {1821#false} is VALID [2022-04-28 09:00:29,176 INFO L272 TraceCheckUtils]: 20: Hoare triple {1821#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1821#false} is VALID [2022-04-28 09:00:29,176 INFO L290 TraceCheckUtils]: 21: Hoare triple {1821#false} ~cond := #in~cond; {1821#false} is VALID [2022-04-28 09:00:29,176 INFO L290 TraceCheckUtils]: 22: Hoare triple {1821#false} assume 0 == ~cond; {1821#false} is VALID [2022-04-28 09:00:29,176 INFO L290 TraceCheckUtils]: 23: Hoare triple {1821#false} assume !false; {1821#false} is VALID [2022-04-28 09:00:29,176 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:29,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:29,357 INFO L290 TraceCheckUtils]: 23: Hoare triple {1821#false} assume !false; {1821#false} is VALID [2022-04-28 09:00:29,358 INFO L290 TraceCheckUtils]: 22: Hoare triple {1821#false} assume 0 == ~cond; {1821#false} is VALID [2022-04-28 09:00:29,358 INFO L290 TraceCheckUtils]: 21: Hoare triple {1821#false} ~cond := #in~cond; {1821#false} is VALID [2022-04-28 09:00:29,358 INFO L272 TraceCheckUtils]: 20: Hoare triple {1821#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {1821#false} is VALID [2022-04-28 09:00:29,358 INFO L290 TraceCheckUtils]: 19: Hoare triple {1920#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {1821#false} is VALID [2022-04-28 09:00:29,358 INFO L290 TraceCheckUtils]: 18: Hoare triple {1924#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1920#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:29,359 INFO L290 TraceCheckUtils]: 17: Hoare triple {1924#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1924#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:29,359 INFO L290 TraceCheckUtils]: 16: Hoare triple {1924#(<= (+ main_~j~0 1) main_~n~0)} assume !(~i~0 == ~j~0); {1924#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:29,359 INFO L290 TraceCheckUtils]: 15: Hoare triple {1924#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1924#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:29,360 INFO L290 TraceCheckUtils]: 14: Hoare triple {1937#(<= (+ main_~j~0 2) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1924#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:29,360 INFO L290 TraceCheckUtils]: 13: Hoare triple {1937#(<= (+ main_~j~0 2) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1937#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:29,360 INFO L290 TraceCheckUtils]: 12: Hoare triple {1937#(<= (+ main_~j~0 2) main_~n~0)} assume !(~i~0 == ~j~0); {1937#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:29,361 INFO L290 TraceCheckUtils]: 11: Hoare triple {1937#(<= (+ main_~j~0 2) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1937#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:29,361 INFO L290 TraceCheckUtils]: 10: Hoare triple {1950#(<= (+ main_~j~0 3) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1937#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:29,362 INFO L290 TraceCheckUtils]: 9: Hoare triple {1950#(<= (+ main_~j~0 3) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {1950#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:29,362 INFO L290 TraceCheckUtils]: 8: Hoare triple {1950#(<= (+ main_~j~0 3) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {1950#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:29,362 INFO L290 TraceCheckUtils]: 7: Hoare triple {1950#(<= (+ main_~j~0 3) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {1950#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:29,363 INFO L290 TraceCheckUtils]: 6: Hoare triple {1963#(<= 3 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1950#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:29,363 INFO L290 TraceCheckUtils]: 5: Hoare triple {1820#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {1963#(<= 3 main_~n~0)} is VALID [2022-04-28 09:00:29,363 INFO L272 TraceCheckUtils]: 4: Hoare triple {1820#true} call #t~ret37 := main(); {1820#true} is VALID [2022-04-28 09:00:29,363 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1820#true} {1820#true} #214#return; {1820#true} is VALID [2022-04-28 09:00:29,363 INFO L290 TraceCheckUtils]: 2: Hoare triple {1820#true} assume true; {1820#true} is VALID [2022-04-28 09:00:29,364 INFO L290 TraceCheckUtils]: 1: Hoare triple {1820#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {1820#true} is VALID [2022-04-28 09:00:29,364 INFO L272 TraceCheckUtils]: 0: Hoare triple {1820#true} call ULTIMATE.init(); {1820#true} is VALID [2022-04-28 09:00:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:29,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281500060] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:29,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:29,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2022-04-28 09:00:29,364 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:29,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [661546450] [2022-04-28 09:00:29,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [661546450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:29,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:29,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-28 09:00:29,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794455281] [2022-04-28 09:00:29,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:29,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-04-28 09:00:29,365 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:29,365 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:29,392 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:29,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-28 09:00:29,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-28 09:00:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=192, Unknown=0, NotChecked=0, Total=306 [2022-04-28 09:00:29,393 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:29,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:29,695 INFO L93 Difference]: Finished difference Result 80 states and 93 transitions. [2022-04-28 09:00:29,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-28 09:00:29,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-04-28 09:00:29,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:29,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 61 transitions. [2022-04-28 09:00:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 61 transitions. [2022-04-28 09:00:29,697 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 10 states and 61 transitions. [2022-04-28 09:00:29,736 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:29,737 INFO L225 Difference]: With dead ends: 80 [2022-04-28 09:00:29,737 INFO L226 Difference]: Without dead ends: 57 [2022-04-28 09:00:29,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2022-04-28 09:00:29,738 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 33 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:29,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 33 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 09:00:29,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-04-28 09:00:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2022-04-28 09:00:29,797 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:29,797 INFO L82 GeneralOperation]: Start isEquivalent. First operand 57 states. Second operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:29,797 INFO L74 IsIncluded]: Start isIncluded. First operand 57 states. Second operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:29,797 INFO L87 Difference]: Start difference. First operand 57 states. Second operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:29,799 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-04-28 09:00:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-04-28 09:00:29,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:29,799 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:29,799 INFO L74 IsIncluded]: Start isIncluded. First operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 57 states. [2022-04-28 09:00:29,799 INFO L87 Difference]: Start difference. First operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 57 states. [2022-04-28 09:00:29,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:29,800 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-04-28 09:00:29,801 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-04-28 09:00:29,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:29,801 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:29,801 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:29,801 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-04-28 09:00:29,802 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 24 [2022-04-28 09:00:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:29,803 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-04-28 09:00:29,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:29,803 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 51 states and 57 transitions. [2022-04-28 09:00:29,869 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-04-28 09:00:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-28 09:00:29,869 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:29,870 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:29,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:30,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:30,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:30,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:30,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1312024861, now seen corresponding path program 5 times [2022-04-28 09:00:30,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:30,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [468254573] [2022-04-28 09:00:30,093 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:30,093 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1312024861, now seen corresponding path program 6 times [2022-04-28 09:00:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091910404] [2022-04-28 09:00:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:30,183 INFO L290 TraceCheckUtils]: 0: Hoare triple {2375#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2364#true} is VALID [2022-04-28 09:00:30,183 INFO L290 TraceCheckUtils]: 1: Hoare triple {2364#true} assume true; {2364#true} is VALID [2022-04-28 09:00:30,183 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {2364#true} {2364#true} #214#return; {2364#true} is VALID [2022-04-28 09:00:30,184 INFO L272 TraceCheckUtils]: 0: Hoare triple {2364#true} call ULTIMATE.init(); {2375#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:30,184 INFO L290 TraceCheckUtils]: 1: Hoare triple {2375#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2364#true} is VALID [2022-04-28 09:00:30,184 INFO L290 TraceCheckUtils]: 2: Hoare triple {2364#true} assume true; {2364#true} is VALID [2022-04-28 09:00:30,184 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2364#true} {2364#true} #214#return; {2364#true} is VALID [2022-04-28 09:00:30,184 INFO L272 TraceCheckUtils]: 4: Hoare triple {2364#true} call #t~ret37 := main(); {2364#true} is VALID [2022-04-28 09:00:30,185 INFO L290 TraceCheckUtils]: 5: Hoare triple {2364#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {2369#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:30,185 INFO L290 TraceCheckUtils]: 6: Hoare triple {2369#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,186 INFO L290 TraceCheckUtils]: 7: Hoare triple {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,186 INFO L290 TraceCheckUtils]: 8: Hoare triple {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,186 INFO L290 TraceCheckUtils]: 9: Hoare triple {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,187 INFO L290 TraceCheckUtils]: 10: Hoare triple {2370#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,187 INFO L290 TraceCheckUtils]: 11: Hoare triple {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,188 INFO L290 TraceCheckUtils]: 12: Hoare triple {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,188 INFO L290 TraceCheckUtils]: 13: Hoare triple {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,188 INFO L290 TraceCheckUtils]: 14: Hoare triple {2371#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,189 INFO L290 TraceCheckUtils]: 15: Hoare triple {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,189 INFO L290 TraceCheckUtils]: 16: Hoare triple {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,190 INFO L290 TraceCheckUtils]: 17: Hoare triple {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,190 INFO L290 TraceCheckUtils]: 18: Hoare triple {2372#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,191 INFO L290 TraceCheckUtils]: 19: Hoare triple {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,192 INFO L290 TraceCheckUtils]: 20: Hoare triple {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} assume !(~i~0 == ~j~0); {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,192 INFO L290 TraceCheckUtils]: 21: Hoare triple {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,192 INFO L290 TraceCheckUtils]: 22: Hoare triple {2373#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2374#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:30,193 INFO L290 TraceCheckUtils]: 23: Hoare triple {2374#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {2365#false} is VALID [2022-04-28 09:00:30,193 INFO L272 TraceCheckUtils]: 24: Hoare triple {2365#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2365#false} is VALID [2022-04-28 09:00:30,193 INFO L290 TraceCheckUtils]: 25: Hoare triple {2365#false} ~cond := #in~cond; {2365#false} is VALID [2022-04-28 09:00:30,193 INFO L290 TraceCheckUtils]: 26: Hoare triple {2365#false} assume 0 == ~cond; {2365#false} is VALID [2022-04-28 09:00:30,193 INFO L290 TraceCheckUtils]: 27: Hoare triple {2365#false} assume !false; {2365#false} is VALID [2022-04-28 09:00:30,193 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:30,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091910404] [2022-04-28 09:00:30,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091910404] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:30,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531638731] [2022-04-28 09:00:30,194 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-28 09:00:30,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:30,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:30,195 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) [2022-04-28 09:00:30,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-28 09:00:30,274 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-28 09:00:30,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:30,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 09:00:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:30,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:30,523 INFO L272 TraceCheckUtils]: 0: Hoare triple {2364#true} call ULTIMATE.init(); {2364#true} is VALID [2022-04-28 09:00:30,523 INFO L290 TraceCheckUtils]: 1: Hoare triple {2364#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2364#true} is VALID [2022-04-28 09:00:30,523 INFO L290 TraceCheckUtils]: 2: Hoare triple {2364#true} assume true; {2364#true} is VALID [2022-04-28 09:00:30,523 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2364#true} {2364#true} #214#return; {2364#true} is VALID [2022-04-28 09:00:30,523 INFO L272 TraceCheckUtils]: 4: Hoare triple {2364#true} call #t~ret37 := main(); {2364#true} is VALID [2022-04-28 09:00:30,524 INFO L290 TraceCheckUtils]: 5: Hoare triple {2364#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {2394#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:30,524 INFO L290 TraceCheckUtils]: 6: Hoare triple {2394#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:30,524 INFO L290 TraceCheckUtils]: 7: Hoare triple {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:30,525 INFO L290 TraceCheckUtils]: 8: Hoare triple {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:30,525 INFO L290 TraceCheckUtils]: 9: Hoare triple {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:30,526 INFO L290 TraceCheckUtils]: 10: Hoare triple {2398#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:30,526 INFO L290 TraceCheckUtils]: 11: Hoare triple {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:30,526 INFO L290 TraceCheckUtils]: 12: Hoare triple {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~i~0 == ~j~0); {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:30,527 INFO L290 TraceCheckUtils]: 13: Hoare triple {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:30,528 INFO L290 TraceCheckUtils]: 14: Hoare triple {2411#(and (<= 5 main_~n~0) (<= main_~j~0 1))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:30,528 INFO L290 TraceCheckUtils]: 15: Hoare triple {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:30,528 INFO L290 TraceCheckUtils]: 16: Hoare triple {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !(~i~0 == ~j~0); {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:30,529 INFO L290 TraceCheckUtils]: 17: Hoare triple {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:30,529 INFO L290 TraceCheckUtils]: 18: Hoare triple {2424#(and (<= 5 main_~n~0) (<= main_~j~0 2))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,530 INFO L290 TraceCheckUtils]: 19: Hoare triple {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,530 INFO L290 TraceCheckUtils]: 20: Hoare triple {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} assume !(~i~0 == ~j~0); {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,530 INFO L290 TraceCheckUtils]: 21: Hoare triple {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:30,531 INFO L290 TraceCheckUtils]: 22: Hoare triple {2437#(and (<= 5 main_~n~0) (<= main_~j~0 3))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2450#(and (<= 5 main_~n~0) (<= main_~j~0 4))} is VALID [2022-04-28 09:00:30,531 INFO L290 TraceCheckUtils]: 23: Hoare triple {2450#(and (<= 5 main_~n~0) (<= main_~j~0 4))} assume !(~j~0 <= ~n~0); {2365#false} is VALID [2022-04-28 09:00:30,531 INFO L272 TraceCheckUtils]: 24: Hoare triple {2365#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2365#false} is VALID [2022-04-28 09:00:30,531 INFO L290 TraceCheckUtils]: 25: Hoare triple {2365#false} ~cond := #in~cond; {2365#false} is VALID [2022-04-28 09:00:30,531 INFO L290 TraceCheckUtils]: 26: Hoare triple {2365#false} assume 0 == ~cond; {2365#false} is VALID [2022-04-28 09:00:30,531 INFO L290 TraceCheckUtils]: 27: Hoare triple {2365#false} assume !false; {2365#false} is VALID [2022-04-28 09:00:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:30,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:30,680 INFO L290 TraceCheckUtils]: 27: Hoare triple {2365#false} assume !false; {2365#false} is VALID [2022-04-28 09:00:30,680 INFO L290 TraceCheckUtils]: 26: Hoare triple {2365#false} assume 0 == ~cond; {2365#false} is VALID [2022-04-28 09:00:30,680 INFO L290 TraceCheckUtils]: 25: Hoare triple {2365#false} ~cond := #in~cond; {2365#false} is VALID [2022-04-28 09:00:30,680 INFO L272 TraceCheckUtils]: 24: Hoare triple {2365#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2365#false} is VALID [2022-04-28 09:00:30,680 INFO L290 TraceCheckUtils]: 23: Hoare triple {2478#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {2365#false} is VALID [2022-04-28 09:00:30,681 INFO L290 TraceCheckUtils]: 22: Hoare triple {2482#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2478#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:30,681 INFO L290 TraceCheckUtils]: 21: Hoare triple {2482#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2482#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:30,681 INFO L290 TraceCheckUtils]: 20: Hoare triple {2482#(<= (+ main_~j~0 1) main_~n~0)} assume !(~i~0 == ~j~0); {2482#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:30,681 INFO L290 TraceCheckUtils]: 19: Hoare triple {2482#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2482#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:30,682 INFO L290 TraceCheckUtils]: 18: Hoare triple {2495#(<= (+ main_~j~0 2) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2482#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:30,682 INFO L290 TraceCheckUtils]: 17: Hoare triple {2495#(<= (+ main_~j~0 2) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2495#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:30,682 INFO L290 TraceCheckUtils]: 16: Hoare triple {2495#(<= (+ main_~j~0 2) main_~n~0)} assume !(~i~0 == ~j~0); {2495#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:30,683 INFO L290 TraceCheckUtils]: 15: Hoare triple {2495#(<= (+ main_~j~0 2) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2495#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:30,683 INFO L290 TraceCheckUtils]: 14: Hoare triple {2508#(<= (+ main_~j~0 3) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2495#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:30,684 INFO L290 TraceCheckUtils]: 13: Hoare triple {2508#(<= (+ main_~j~0 3) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2508#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:30,684 INFO L290 TraceCheckUtils]: 12: Hoare triple {2508#(<= (+ main_~j~0 3) main_~n~0)} assume !(~i~0 == ~j~0); {2508#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:30,684 INFO L290 TraceCheckUtils]: 11: Hoare triple {2508#(<= (+ main_~j~0 3) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2508#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:30,685 INFO L290 TraceCheckUtils]: 10: Hoare triple {2521#(<= (+ main_~j~0 4) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2508#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:30,685 INFO L290 TraceCheckUtils]: 9: Hoare triple {2521#(<= (+ main_~j~0 4) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2521#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:30,685 INFO L290 TraceCheckUtils]: 8: Hoare triple {2521#(<= (+ main_~j~0 4) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {2521#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:30,686 INFO L290 TraceCheckUtils]: 7: Hoare triple {2521#(<= (+ main_~j~0 4) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2521#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:30,686 INFO L290 TraceCheckUtils]: 6: Hoare triple {2534#(<= 4 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {2521#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:30,686 INFO L290 TraceCheckUtils]: 5: Hoare triple {2364#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {2534#(<= 4 main_~n~0)} is VALID [2022-04-28 09:00:30,686 INFO L272 TraceCheckUtils]: 4: Hoare triple {2364#true} call #t~ret37 := main(); {2364#true} is VALID [2022-04-28 09:00:30,686 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2364#true} {2364#true} #214#return; {2364#true} is VALID [2022-04-28 09:00:30,687 INFO L290 TraceCheckUtils]: 2: Hoare triple {2364#true} assume true; {2364#true} is VALID [2022-04-28 09:00:30,687 INFO L290 TraceCheckUtils]: 1: Hoare triple {2364#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2364#true} is VALID [2022-04-28 09:00:30,687 INFO L272 TraceCheckUtils]: 0: Hoare triple {2364#true} call ULTIMATE.init(); {2364#true} is VALID [2022-04-28 09:00:30,687 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:30,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531638731] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:30,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:30,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2022-04-28 09:00:30,687 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:30,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [468254573] [2022-04-28 09:00:30,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [468254573] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:30,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:30,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-04-28 09:00:30,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139528207] [2022-04-28 09:00:30,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:30,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-04-28 09:00:30,688 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:30,688 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:30,705 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:30,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-28 09:00:30,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-28 09:00:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=270, Unknown=0, NotChecked=0, Total=420 [2022-04-28 09:00:30,706 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:30,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:30,948 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2022-04-28 09:00:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-28 09:00:30,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-04-28 09:00:30,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 66 transitions. [2022-04-28 09:00:30,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 66 transitions. [2022-04-28 09:00:30,950 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 66 transitions. [2022-04-28 09:00:30,993 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:30,995 INFO L225 Difference]: With dead ends: 92 [2022-04-28 09:00:30,995 INFO L226 Difference]: Without dead ends: 65 [2022-04-28 09:00:30,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=178, Invalid=328, Unknown=0, NotChecked=0, Total=506 [2022-04-28 09:00:30,996 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 39 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:30,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 41 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 09:00:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-04-28 09:00:31,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2022-04-28 09:00:31,038 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:31,039 INFO L82 GeneralOperation]: Start isEquivalent. First operand 65 states. Second operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:31,039 INFO L74 IsIncluded]: Start isIncluded. First operand 65 states. Second operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:31,039 INFO L87 Difference]: Start difference. First operand 65 states. Second operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:31,040 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2022-04-28 09:00:31,040 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-04-28 09:00:31,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:31,040 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:31,041 INFO L74 IsIncluded]: Start isIncluded. First operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 65 states. [2022-04-28 09:00:31,041 INFO L87 Difference]: Start difference. First operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 65 states. [2022-04-28 09:00:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:31,042 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2022-04-28 09:00:31,042 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-04-28 09:00:31,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:31,042 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:31,042 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:31,042 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 53 states have (on average 1.150943396226415) internal successors, (61), 53 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2022-04-28 09:00:31,043 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 28 [2022-04-28 09:00:31,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:31,043 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2022-04-28 09:00:31,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:31,044 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 59 states and 66 transitions. [2022-04-28 09:00:31,094 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 66 edges. 66 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2022-04-28 09:00:31,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-28 09:00:31,094 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:31,094 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:31,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:31,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:31,311 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1026934172, now seen corresponding path program 7 times [2022-04-28 09:00:31,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:31,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [655203593] [2022-04-28 09:00:31,317 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:31,317 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1026934172, now seen corresponding path program 8 times [2022-04-28 09:00:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981127377] [2022-04-28 09:00:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:31,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:00:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:31,418 INFO L290 TraceCheckUtils]: 0: Hoare triple {3003#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2991#true} is VALID [2022-04-28 09:00:31,418 INFO L290 TraceCheckUtils]: 1: Hoare triple {2991#true} assume true; {2991#true} is VALID [2022-04-28 09:00:31,418 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {2991#true} {2991#true} #214#return; {2991#true} is VALID [2022-04-28 09:00:31,419 INFO L272 TraceCheckUtils]: 0: Hoare triple {2991#true} call ULTIMATE.init(); {3003#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:00:31,419 INFO L290 TraceCheckUtils]: 1: Hoare triple {3003#(and (= |old(#memory_real)| |#memory_real|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~#x~0.offset)| |~#x~0.offset|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2991#true} is VALID [2022-04-28 09:00:31,419 INFO L290 TraceCheckUtils]: 2: Hoare triple {2991#true} assume true; {2991#true} is VALID [2022-04-28 09:00:31,419 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2991#true} {2991#true} #214#return; {2991#true} is VALID [2022-04-28 09:00:31,419 INFO L272 TraceCheckUtils]: 4: Hoare triple {2991#true} call #t~ret37 := main(); {2991#true} is VALID [2022-04-28 09:00:31,426 INFO L290 TraceCheckUtils]: 5: Hoare triple {2991#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {2996#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-28 09:00:31,427 INFO L290 TraceCheckUtils]: 6: Hoare triple {2996#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,427 INFO L290 TraceCheckUtils]: 7: Hoare triple {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,427 INFO L290 TraceCheckUtils]: 8: Hoare triple {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,428 INFO L290 TraceCheckUtils]: 9: Hoare triple {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,428 INFO L290 TraceCheckUtils]: 10: Hoare triple {2997#(and (= main_~j~0 0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,429 INFO L290 TraceCheckUtils]: 11: Hoare triple {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,429 INFO L290 TraceCheckUtils]: 12: Hoare triple {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,429 INFO L290 TraceCheckUtils]: 13: Hoare triple {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,430 INFO L290 TraceCheckUtils]: 14: Hoare triple {2998#(and (<= main_~j~0 1) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,430 INFO L290 TraceCheckUtils]: 15: Hoare triple {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,430 INFO L290 TraceCheckUtils]: 16: Hoare triple {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,431 INFO L290 TraceCheckUtils]: 17: Hoare triple {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,431 INFO L290 TraceCheckUtils]: 18: Hoare triple {2999#(and (<= main_~j~0 2) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,431 INFO L290 TraceCheckUtils]: 19: Hoare triple {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,432 INFO L290 TraceCheckUtils]: 20: Hoare triple {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} assume !(~i~0 == ~j~0); {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,432 INFO L290 TraceCheckUtils]: 21: Hoare triple {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,433 INFO L290 TraceCheckUtils]: 22: Hoare triple {3000#(and (= (+ main_~n~0 (- 5)) 0) (<= main_~j~0 3))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,433 INFO L290 TraceCheckUtils]: 23: Hoare triple {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,433 INFO L290 TraceCheckUtils]: 24: Hoare triple {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} assume !(~i~0 == ~j~0); {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,434 INFO L290 TraceCheckUtils]: 25: Hoare triple {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,434 INFO L290 TraceCheckUtils]: 26: Hoare triple {3001#(and (<= main_~j~0 4) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3002#(and (<= main_~j~0 5) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-28 09:00:31,434 INFO L290 TraceCheckUtils]: 27: Hoare triple {3002#(and (<= main_~j~0 5) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {2992#false} is VALID [2022-04-28 09:00:31,434 INFO L272 TraceCheckUtils]: 28: Hoare triple {2992#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2992#false} is VALID [2022-04-28 09:00:31,434 INFO L290 TraceCheckUtils]: 29: Hoare triple {2992#false} ~cond := #in~cond; {2992#false} is VALID [2022-04-28 09:00:31,435 INFO L290 TraceCheckUtils]: 30: Hoare triple {2992#false} assume 0 == ~cond; {2992#false} is VALID [2022-04-28 09:00:31,435 INFO L290 TraceCheckUtils]: 31: Hoare triple {2992#false} assume !false; {2992#false} is VALID [2022-04-28 09:00:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:31,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:00:31,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981127377] [2022-04-28 09:00:31,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981127377] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 09:00:31,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232464693] [2022-04-28 09:00:31,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 09:00:31,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:31,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:00:31,436 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) [2022-04-28 09:00:31,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-28 09:00:31,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 09:00:31,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 09:00:31,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-28 09:00:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:00:31,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 09:00:31,761 INFO L272 TraceCheckUtils]: 0: Hoare triple {2991#true} call ULTIMATE.init(); {2991#true} is VALID [2022-04-28 09:00:31,761 INFO L290 TraceCheckUtils]: 1: Hoare triple {2991#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2991#true} is VALID [2022-04-28 09:00:31,761 INFO L290 TraceCheckUtils]: 2: Hoare triple {2991#true} assume true; {2991#true} is VALID [2022-04-28 09:00:31,761 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2991#true} {2991#true} #214#return; {2991#true} is VALID [2022-04-28 09:00:31,761 INFO L272 TraceCheckUtils]: 4: Hoare triple {2991#true} call #t~ret37 := main(); {2991#true} is VALID [2022-04-28 09:00:31,762 INFO L290 TraceCheckUtils]: 5: Hoare triple {2991#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {3022#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:31,762 INFO L290 TraceCheckUtils]: 6: Hoare triple {3022#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:31,763 INFO L290 TraceCheckUtils]: 7: Hoare triple {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:31,763 INFO L290 TraceCheckUtils]: 8: Hoare triple {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:31,763 INFO L290 TraceCheckUtils]: 9: Hoare triple {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-28 09:00:31,764 INFO L290 TraceCheckUtils]: 10: Hoare triple {3026#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:31,764 INFO L290 TraceCheckUtils]: 11: Hoare triple {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:31,786 INFO L290 TraceCheckUtils]: 12: Hoare triple {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~i~0 == ~j~0); {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:31,787 INFO L290 TraceCheckUtils]: 13: Hoare triple {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-28 09:00:31,787 INFO L290 TraceCheckUtils]: 14: Hoare triple {3039#(and (<= 5 main_~n~0) (<= main_~j~0 1))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:31,788 INFO L290 TraceCheckUtils]: 15: Hoare triple {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:31,788 INFO L290 TraceCheckUtils]: 16: Hoare triple {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} assume !(~i~0 == ~j~0); {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:31,788 INFO L290 TraceCheckUtils]: 17: Hoare triple {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} is VALID [2022-04-28 09:00:31,789 INFO L290 TraceCheckUtils]: 18: Hoare triple {3052#(and (<= 5 main_~n~0) (<= main_~j~0 2))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,789 INFO L290 TraceCheckUtils]: 19: Hoare triple {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,789 INFO L290 TraceCheckUtils]: 20: Hoare triple {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} assume !(~i~0 == ~j~0); {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,790 INFO L290 TraceCheckUtils]: 21: Hoare triple {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} is VALID [2022-04-28 09:00:31,790 INFO L290 TraceCheckUtils]: 22: Hoare triple {3065#(and (<= 5 main_~n~0) (<= main_~j~0 3))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} is VALID [2022-04-28 09:00:31,791 INFO L290 TraceCheckUtils]: 23: Hoare triple {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} is VALID [2022-04-28 09:00:31,791 INFO L290 TraceCheckUtils]: 24: Hoare triple {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} assume !(~i~0 == ~j~0); {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} is VALID [2022-04-28 09:00:31,791 INFO L290 TraceCheckUtils]: 25: Hoare triple {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} is VALID [2022-04-28 09:00:31,792 INFO L290 TraceCheckUtils]: 26: Hoare triple {3078#(and (<= 5 main_~n~0) (<= main_~j~0 4))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3091#(and (<= 5 main_~n~0) (<= main_~j~0 5))} is VALID [2022-04-28 09:00:31,792 INFO L290 TraceCheckUtils]: 27: Hoare triple {3091#(and (<= 5 main_~n~0) (<= main_~j~0 5))} assume !(~j~0 <= ~n~0); {2992#false} is VALID [2022-04-28 09:00:31,792 INFO L272 TraceCheckUtils]: 28: Hoare triple {2992#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2992#false} is VALID [2022-04-28 09:00:31,792 INFO L290 TraceCheckUtils]: 29: Hoare triple {2992#false} ~cond := #in~cond; {2992#false} is VALID [2022-04-28 09:00:31,792 INFO L290 TraceCheckUtils]: 30: Hoare triple {2992#false} assume 0 == ~cond; {2992#false} is VALID [2022-04-28 09:00:31,792 INFO L290 TraceCheckUtils]: 31: Hoare triple {2992#false} assume !false; {2992#false} is VALID [2022-04-28 09:00:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:31,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 09:00:31,985 INFO L290 TraceCheckUtils]: 31: Hoare triple {2992#false} assume !false; {2992#false} is VALID [2022-04-28 09:00:31,985 INFO L290 TraceCheckUtils]: 30: Hoare triple {2992#false} assume 0 == ~cond; {2992#false} is VALID [2022-04-28 09:00:31,985 INFO L290 TraceCheckUtils]: 29: Hoare triple {2992#false} ~cond := #in~cond; {2992#false} is VALID [2022-04-28 09:00:31,985 INFO L272 TraceCheckUtils]: 28: Hoare triple {2992#false} call __VERIFIER_assert((if 2 == ~i~0 then 1 else 0)); {2992#false} is VALID [2022-04-28 09:00:31,985 INFO L290 TraceCheckUtils]: 27: Hoare triple {3119#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {2992#false} is VALID [2022-04-28 09:00:31,986 INFO L290 TraceCheckUtils]: 26: Hoare triple {3123#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3119#(<= main_~j~0 main_~n~0)} is VALID [2022-04-28 09:00:31,986 INFO L290 TraceCheckUtils]: 25: Hoare triple {3123#(<= (+ main_~j~0 1) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3123#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:31,986 INFO L290 TraceCheckUtils]: 24: Hoare triple {3123#(<= (+ main_~j~0 1) main_~n~0)} assume !(~i~0 == ~j~0); {3123#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:31,987 INFO L290 TraceCheckUtils]: 23: Hoare triple {3123#(<= (+ main_~j~0 1) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3123#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:31,987 INFO L290 TraceCheckUtils]: 22: Hoare triple {3136#(<= (+ main_~j~0 2) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3123#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-28 09:00:31,987 INFO L290 TraceCheckUtils]: 21: Hoare triple {3136#(<= (+ main_~j~0 2) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3136#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:31,988 INFO L290 TraceCheckUtils]: 20: Hoare triple {3136#(<= (+ main_~j~0 2) main_~n~0)} assume !(~i~0 == ~j~0); {3136#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:31,988 INFO L290 TraceCheckUtils]: 19: Hoare triple {3136#(<= (+ main_~j~0 2) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3136#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:31,988 INFO L290 TraceCheckUtils]: 18: Hoare triple {3149#(<= (+ main_~j~0 3) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3136#(<= (+ main_~j~0 2) main_~n~0)} is VALID [2022-04-28 09:00:31,989 INFO L290 TraceCheckUtils]: 17: Hoare triple {3149#(<= (+ main_~j~0 3) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3149#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:31,989 INFO L290 TraceCheckUtils]: 16: Hoare triple {3149#(<= (+ main_~j~0 3) main_~n~0)} assume !(~i~0 == ~j~0); {3149#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:31,989 INFO L290 TraceCheckUtils]: 15: Hoare triple {3149#(<= (+ main_~j~0 3) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3149#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:31,990 INFO L290 TraceCheckUtils]: 14: Hoare triple {3162#(<= (+ main_~j~0 4) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3149#(<= (+ main_~j~0 3) main_~n~0)} is VALID [2022-04-28 09:00:31,990 INFO L290 TraceCheckUtils]: 13: Hoare triple {3162#(<= (+ main_~j~0 4) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3162#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:31,990 INFO L290 TraceCheckUtils]: 12: Hoare triple {3162#(<= (+ main_~j~0 4) main_~n~0)} assume !(~i~0 == ~j~0); {3162#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:31,991 INFO L290 TraceCheckUtils]: 11: Hoare triple {3162#(<= (+ main_~j~0 4) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3162#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:31,991 INFO L290 TraceCheckUtils]: 10: Hoare triple {3175#(<= (+ 5 main_~j~0) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {3162#(<= (+ main_~j~0 4) main_~n~0)} is VALID [2022-04-28 09:00:31,991 INFO L290 TraceCheckUtils]: 9: Hoare triple {3175#(<= (+ 5 main_~j~0) main_~n~0)} call #t~mem7 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);~w~0 := ~someBinaryArithmeticDOUBLEoperation(~w~0, #t~mem7);havoc #t~mem7; {3175#(<= (+ 5 main_~j~0) main_~n~0)} is VALID [2022-04-28 09:00:31,992 INFO L290 TraceCheckUtils]: 8: Hoare triple {3175#(<= (+ 5 main_~j~0) main_~n~0)} assume ~i~0 == ~j~0;call #t~mem6 := read~real(~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);call write~real(~someBinaryArithmeticDOUBLEoperation(#t~mem6, 10.0), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8);havoc #t~mem6; {3175#(<= (+ 5 main_~j~0) main_~n~0)} is VALID [2022-04-28 09:00:31,992 INFO L290 TraceCheckUtils]: 7: Hoare triple {3175#(<= (+ 5 main_~j~0) main_~n~0)} assume !!(~j~0 <= ~n~0);call write~real(~convertINTToDOUBLE(1 + ~i~0 + (1 + ~j~0)), ~#a~0.base, ~#a~0.offset + 400 * ~i~0 + 8 * ~j~0, 8); {3175#(<= (+ 5 main_~j~0) main_~n~0)} is VALID [2022-04-28 09:00:31,992 INFO L290 TraceCheckUtils]: 6: Hoare triple {3022#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {3175#(<= (+ 5 main_~j~0) main_~n~0)} is VALID [2022-04-28 09:00:31,993 INFO L290 TraceCheckUtils]: 5: Hoare triple {2991#true} havoc ~i~0;havoc ~j~0;~nmax~0 := 50;~n~0 := 5;havoc ~chkerr~0;havoc ~eps~0;havoc ~w~0;~eps~0 := 1.0E-6;~i~0 := 0; {3022#(<= 5 main_~n~0)} is VALID [2022-04-28 09:00:31,993 INFO L272 TraceCheckUtils]: 4: Hoare triple {2991#true} call #t~ret37 := main(); {2991#true} is VALID [2022-04-28 09:00:31,993 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {2991#true} {2991#true} #214#return; {2991#true} is VALID [2022-04-28 09:00:31,993 INFO L290 TraceCheckUtils]: 2: Hoare triple {2991#true} assume true; {2991#true} is VALID [2022-04-28 09:00:31,993 INFO L290 TraceCheckUtils]: 1: Hoare triple {2991#true} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);call #Ultimate.allocInit(12, 3);~#a~0.base, ~#a~0.offset := 4, 0;call #Ultimate.allocInit(20000, 4);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#a~0.base);~#b~0.base, ~#b~0.offset := 5, 0;call #Ultimate.allocInit(400, 5);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#b~0.base);~#x~0.base, ~#x~0.offset := 6, 0;call #Ultimate.allocInit(400, 6);#memory_real := ~initToZeroAtPointerBaseAddress~real(#memory_real, ~#x~0.base); {2991#true} is VALID [2022-04-28 09:00:31,993 INFO L272 TraceCheckUtils]: 0: Hoare triple {2991#true} call ULTIMATE.init(); {2991#true} is VALID [2022-04-28 09:00:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:00:31,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232464693] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-28 09:00:31,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-28 09:00:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 23 [2022-04-28 09:00:31,994 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:00:31,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [655203593] [2022-04-28 09:00:31,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [655203593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:00:31,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:00:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-04-28 09:00:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464763250] [2022-04-28 09:00:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:00:31,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-04-28 09:00:31,995 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:00:31,995 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:32,015 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:32,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-28 09:00:32,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:32,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-28 09:00:32,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2022-04-28 09:00:32,016 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:32,227 INFO L93 Difference]: Finished difference Result 98 states and 114 transitions. [2022-04-28 09:00:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-28 09:00:32,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-04-28 09:00:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:00:32,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 67 transitions. [2022-04-28 09:00:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 67 transitions. [2022-04-28 09:00:32,229 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 12 states and 67 transitions. [2022-04-28 09:00:32,273 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:32,274 INFO L225 Difference]: With dead ends: 98 [2022-04-28 09:00:32,274 INFO L226 Difference]: Without dead ends: 67 [2022-04-28 09:00:32,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=401, Unknown=0, NotChecked=0, Total=600 [2022-04-28 09:00:32,275 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 61 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 09:00:32,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 33 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 09:00:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-04-28 09:00:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-04-28 09:00:32,331 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:00:32,331 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:32,331 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:32,331 INFO L87 Difference]: Start difference. First operand 67 states. Second operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:32,333 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2022-04-28 09:00:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-04-28 09:00:32,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:32,333 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:32,333 INFO L74 IsIncluded]: Start isIncluded. First operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 67 states. [2022-04-28 09:00:32,333 INFO L87 Difference]: Start difference. First operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand 67 states. [2022-04-28 09:00:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:00:32,334 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2022-04-28 09:00:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-04-28 09:00:32,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:00:32,334 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:00:32,335 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:00:32,335 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:00:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 61 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-28 09:00:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2022-04-28 09:00:32,336 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 32 [2022-04-28 09:00:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:00:32,336 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2022-04-28 09:00:32,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:00:32,336 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 67 states and 75 transitions. [2022-04-28 09:00:32,399 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:00:32,399 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-04-28 09:00:32,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-04-28 09:00:32,399 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:00:32,399 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:00:32,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-28 09:00:32,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 09:00:32,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:00:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:00:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1975029803, now seen corresponding path program 9 times [2022-04-28 09:00:32,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:00:32,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [452797956] [2022-04-28 09:00:32,614 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-28 09:00:32,614 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-28 09:00:32,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1975029803, now seen corresponding path program 10 times [2022-04-28 09:00:32,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:00:32,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024302920] [2022-04-28 09:00:32,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:00:32,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:00:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-28 09:00:32,631 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-28 09:00:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-28 09:00:32,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-28 09:00:32,667 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-28 09:00:32,667 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-04-28 09:00:32,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 09:00:32,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-28 09:00:32,671 INFO L356 BasicCegarLoop]: Path program histogram: [10, 4, 2, 2] [2022-04-28 09:00:32,685 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ludcmpENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: fabsENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L93-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L93-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L93-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ludcmpFINAL has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L118-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L118-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L118-3 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L93-4 has no Hoare annotation [2022-04-28 09:00:32,694 WARN L170 areAnnotationChecker]: L93-4 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L96-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L96-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L96-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: ludcmpEXIT has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L118-4 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L120 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L120 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: fabsFINAL has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L96-4 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L96-4 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L99 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L99 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L138-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L138-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L138-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L120-1 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: fabsEXIT has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L99-2 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L138-4 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L141-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L141-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L141-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L121-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L121-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: L121-3 has no Hoare annotation [2022-04-28 09:00:32,695 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L93-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L96-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L146-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L146-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L146-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L141-4 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L141-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L121-4 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L124 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L124 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L146-4 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L149-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L149-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L149-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L138-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L129-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L129-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L129-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L125-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L125-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L125-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L124-1 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L149-4 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L149-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L118-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L132-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L132-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L132-3 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L125-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L121-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L146-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L132-4 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L132-2 has no Hoare annotation [2022-04-28 09:00:32,696 WARN L170 areAnnotationChecker]: L129-2 has no Hoare annotation [2022-04-28 09:00:32,696 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 09:00:32,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:00:32 BoogieIcfgContainer [2022-04-28 09:00:32,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 09:00:32,698 INFO L158 Benchmark]: Toolchain (without parser) took 8625.93ms. Allocated memory was 217.1MB in the beginning and 339.7MB in the end (delta: 122.7MB). Free memory was 165.4MB in the beginning and 215.4MB in the end (delta: -50.1MB). Peak memory consumption was 72.4MB. Max. memory is 8.0GB. [2022-04-28 09:00:32,698 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 181.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 09:00:32,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.90ms. Allocated memory was 217.1MB in the beginning and 283.1MB in the end (delta: 66.1MB). Free memory was 165.1MB in the beginning and 254.5MB in the end (delta: -89.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-04-28 09:00:32,698 INFO L158 Benchmark]: Boogie Preprocessor took 34.85ms. Allocated memory is still 283.1MB. Free memory was 254.5MB in the beginning and 251.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 09:00:32,699 INFO L158 Benchmark]: RCFGBuilder took 374.71ms. Allocated memory is still 283.1MB. Free memory was 251.9MB in the beginning and 232.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-04-28 09:00:32,699 INFO L158 Benchmark]: TraceAbstraction took 7966.17ms. Allocated memory was 283.1MB in the beginning and 339.7MB in the end (delta: 56.6MB). Free memory was 231.5MB in the beginning and 215.4MB in the end (delta: 16.0MB). Peak memory consumption was 73.7MB. Max. memory is 8.0GB. [2022-04-28 09:00:32,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 217.1MB. Free memory is still 181.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 245.90ms. Allocated memory was 217.1MB in the beginning and 283.1MB in the end (delta: 66.1MB). Free memory was 165.1MB in the beginning and 254.5MB in the end (delta: -89.4MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.85ms. Allocated memory is still 283.1MB. Free memory was 254.5MB in the beginning and 251.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 374.71ms. Allocated memory is still 283.1MB. Free memory was 251.9MB in the beginning and 232.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 7966.17ms. Allocated memory was 283.1MB in the beginning and 339.7MB in the end (delta: 56.6MB). Free memory was 231.5MB in the beginning and 215.4MB in the end (delta: 16.0MB). Peak memory consumption was 73.7MB. 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 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_real at line 98, overapproximation of someBinaryArithmeticDOUBLEoperation at line 100. Possible FailurePath: [L71] double a[50][50], b[50], x[50]; [L88] int i, j, nmax = 50, n = 5, chkerr; [L89] double eps, w; [L91] eps = 1.0e-6 [L93] i = 0 [L93] COND TRUE i <= n [L95] w = 0.0 [L96] j = 0 [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND TRUE i == j [L99] EXPR a[i][j] [L99] a[i][j] *= 10.0 [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND TRUE j <= n [L98] a[i][j] = (i + 1) + (j + 1) [L99] COND FALSE !(i == j) [L100] EXPR a[i][j] [L100] w += a[i][j] [L96] j++ [L96] COND FALSE !(j <= n) [L102] CALL __VERIFIER_assert(i==2) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 9, TraceHistogramMax: 6, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 294 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 175 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 351 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=8, InterpolantAutomatonStates: 67, 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, 8 MinimizatonAttempts, 35 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-28 09:00:32,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...