/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 03:35:07,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 03:35:07,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 03:35:07,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 03:35:07,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-08 03:35:07,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-08 03:35:07,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-08 03:35:07,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-08 03:35:07,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-08 03:35:07,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-08 03:35:07,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-08 03:35:07,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-08 03:35:07,208 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-08 03:35:07,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-08 03:35:07,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-08 03:35:07,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-08 03:35:07,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-08 03:35:07,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-08 03:35:07,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 03:35:07,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 03:35:07,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 03:35:07,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-08 03:35:07,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 03:35:07,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 03:35:07,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 03:35:07,248 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-08 03:35:07,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 03:35:07,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-08 03:35:07,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 03:35:07,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 03:35:07,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 03:35:07,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 03:35:07,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 03:35:07,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:35:07,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 03:35:07,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 03:35:07,252 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-08 03:35:07,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 03:35:07,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 03:35:07,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 03:35:07,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 03:35:07,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 03:35:07,510 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 03:35:07,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2022-04-08 03:35:07,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46ded0ac/7994628d074a4634be6bde804f66d506/FLAG24c738103 [2022-04-08 03:35:07,978 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 03:35:07,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2022-04-08 03:35:07,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46ded0ac/7994628d074a4634be6bde804f66d506/FLAG24c738103 [2022-04-08 03:35:08,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c46ded0ac/7994628d074a4634be6bde804f66d506 [2022-04-08 03:35:08,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 03:35:08,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 03:35:08,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 03:35:08,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 03:35:08,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 03:35:08,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3199d738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08, skipping insertion in model container [2022-04-08 03:35:08,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 03:35:08,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 03:35:08,544 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/lu.cmp.c[318,331] [2022-04-08 03:35:08,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:35:08,593 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 03:35:08,602 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/lu.cmp.c[318,331] [2022-04-08 03:35:08,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 03:35:08,674 INFO L208 MainTranslator]: Completed translation [2022-04-08 03:35:08,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08 WrapperNode [2022-04-08 03:35:08,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 03:35:08,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 03:35:08,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 03:35:08,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 03:35:08,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 03:35:08,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 03:35:08,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 03:35:08,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 03:35:08,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (1/1) ... [2022-04-08 03:35:08,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 03:35:08,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:35:08,762 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) [2022-04-08 03:35:08,771 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 [2022-04-08 03:35:08,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 03:35:08,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2022-04-08 03:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 03:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 03:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 03:35:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 03:35:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 03:35:08,888 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 03:35:08,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 03:35:09,225 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 03:35:09,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 03:35:09,232 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-08 03:35:09,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:35:09 BoogieIcfgContainer [2022-04-08 03:35:09,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 03:35:09,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 03:35:09,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 03:35:09,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 03:35:09,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 03:35:08" (1/3) ... [2022-04-08 03:35:09,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfc1422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:35:09, skipping insertion in model container [2022-04-08 03:35:09,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 03:35:08" (2/3) ... [2022-04-08 03:35:09,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cfc1422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 03:35:09, skipping insertion in model container [2022-04-08 03:35:09,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 03:35:09" (3/3) ... [2022-04-08 03:35:09,244 INFO L111 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2022-04-08 03:35:09,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 03:35:09,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 03:35:09,279 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 03:35:09,285 INFO L340 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 [2022-04-08 03:35:09,285 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 03:35:09,302 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) [2022-04-08 03:35:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-08 03:35:09,308 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:09,309 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:09,309 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1448102218, now seen corresponding path program 1 times [2022-04-08 03:35:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:09,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2131497718] [2022-04-08 03:35:09,333 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 03:35:09,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1448102218, now seen corresponding path program 2 times [2022-04-08 03:35:09,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:09,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444637371] [2022-04-08 03:35:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:09,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:09,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:35:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:09,508 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 [2022-04-08 03:35:09,509 INFO L290 TraceCheckUtils]: 1: Hoare triple {67#true} assume true; {67#true} is VALID [2022-04-08 03:35:09,509 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {67#true} {67#true} #214#return; {67#true} is VALID [2022-04-08 03:35:09,511 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 [2022-04-08 03:35:09,512 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 [2022-04-08 03:35:09,512 INFO L290 TraceCheckUtils]: 2: Hoare triple {67#true} assume true; {67#true} is VALID [2022-04-08 03:35:09,512 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {67#true} {67#true} #214#return; {67#true} is VALID [2022-04-08 03:35:09,512 INFO L272 TraceCheckUtils]: 4: Hoare triple {67#true} call #t~ret37 := main(); {67#true} is VALID [2022-04-08 03:35:09,513 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 [2022-04-08 03:35:09,513 INFO L290 TraceCheckUtils]: 6: Hoare triple {67#true} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {67#true} is VALID [2022-04-08 03:35:09,514 INFO L290 TraceCheckUtils]: 7: Hoare triple {67#true} assume !true; {68#false} is VALID [2022-04-08 03:35:09,514 INFO L272 TraceCheckUtils]: 8: Hoare triple {68#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {68#false} is VALID [2022-04-08 03:35:09,514 INFO L290 TraceCheckUtils]: 9: Hoare triple {68#false} ~cond := #in~cond; {68#false} is VALID [2022-04-08 03:35:09,514 INFO L290 TraceCheckUtils]: 10: Hoare triple {68#false} assume 0 == ~cond; {68#false} is VALID [2022-04-08 03:35:09,515 INFO L290 TraceCheckUtils]: 11: Hoare triple {68#false} assume !false; {68#false} is VALID [2022-04-08 03:35:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 03:35:09,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:09,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444637371] [2022-04-08 03:35:09,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444637371] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:09,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:09,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 03:35:09,519 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:09,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2131497718] [2022-04-08 03:35:09,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2131497718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:09,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:09,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-08 03:35:09,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518313914] [2022-04-08 03:35:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:09,525 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 [2022-04-08 03:35:09,528 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:09,530 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) [2022-04-08 03:35:09,545 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:09,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-08 03:35:09,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-08 03:35:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-08 03:35:09,574 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) [2022-04-08 03:35:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,008 INFO L93 Difference]: Finished difference Result 147 states and 225 transitions. [2022-04-08 03:35:10,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-08 03:35:10,009 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 [2022-04-08 03:35:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:10,010 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) [2022-04-08 03:35:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-04-08 03:35:10,022 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) [2022-04-08 03:35:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-04-08 03:35:10,029 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 225 transitions. [2022-04-08 03:35:10,266 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 225 edges. 225 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,273 INFO L225 Difference]: With dead ends: 147 [2022-04-08 03:35:10,273 INFO L226 Difference]: Without dead ends: 24 [2022-04-08 03:35:10,276 INFO L912 BasicCegarLoop]: 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 [2022-04-08 03:35:10,279 INFO L913 BasicCegarLoop]: 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 [2022-04-08 03:35:10,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 73 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 03:35:10,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-04-08 03:35:10,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-04-08 03:35:10,304 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:10,304 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) [2022-04-08 03:35:10,305 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) [2022-04-08 03:35:10,305 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) [2022-04-08 03:35:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,308 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-04-08 03:35:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-04-08 03:35:10,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:10,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:10,309 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. [2022-04-08 03:35:10,310 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. [2022-04-08 03:35:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,312 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2022-04-08 03:35:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-04-08 03:35:10,312 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:10,312 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:10,312 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:10,312 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:10,313 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) [2022-04-08 03:35:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-04-08 03:35:10,315 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2022-04-08 03:35:10,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:10,315 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-04-08 03:35:10,316 INFO L479 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) [2022-04-08 03:35:10,316 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 20 states and 22 transitions. [2022-04-08 03:35:10,338 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-04-08 03:35:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-08 03:35:10,339 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:10,339 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:10,339 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 03:35:10,340 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1436096445, now seen corresponding path program 1 times [2022-04-08 03:35:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:10,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1985648382] [2022-04-08 03:35:10,347 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 03:35:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1436096445, now seen corresponding path program 2 times [2022-04-08 03:35:10,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:10,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849981878] [2022-04-08 03:35:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:10,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:35:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:10,452 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 [2022-04-08 03:35:10,453 INFO L290 TraceCheckUtils]: 1: Hoare triple {457#true} assume true; {457#true} is VALID [2022-04-08 03:35:10,453 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {457#true} {457#true} #214#return; {457#true} is VALID [2022-04-08 03:35:10,454 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 [2022-04-08 03:35:10,454 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 [2022-04-08 03:35:10,455 INFO L290 TraceCheckUtils]: 2: Hoare triple {457#true} assume true; {457#true} is VALID [2022-04-08 03:35:10,455 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {457#true} {457#true} #214#return; {457#true} is VALID [2022-04-08 03:35:10,455 INFO L272 TraceCheckUtils]: 4: Hoare triple {457#true} call #t~ret37 := main(); {457#true} is VALID [2022-04-08 03:35:10,456 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 [2022-04-08 03:35:10,456 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 [2022-04-08 03:35:10,457 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 [2022-04-08 03:35:10,457 INFO L272 TraceCheckUtils]: 8: Hoare triple {458#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {458#false} is VALID [2022-04-08 03:35:10,457 INFO L290 TraceCheckUtils]: 9: Hoare triple {458#false} ~cond := #in~cond; {458#false} is VALID [2022-04-08 03:35:10,457 INFO L290 TraceCheckUtils]: 10: Hoare triple {458#false} assume 0 == ~cond; {458#false} is VALID [2022-04-08 03:35:10,457 INFO L290 TraceCheckUtils]: 11: Hoare triple {458#false} assume !false; {458#false} is VALID [2022-04-08 03:35:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 03:35:10,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:10,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849981878] [2022-04-08 03:35:10,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849981878] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:10,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:10,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 03:35:10,459 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:10,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1985648382] [2022-04-08 03:35:10,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1985648382] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:10,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:10,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-08 03:35:10,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668376807] [2022-04-08 03:35:10,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:10,460 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 [2022-04-08 03:35:10,461 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:10,461 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) [2022-04-08 03:35:10,470 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-08 03:35:10,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-08 03:35:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-08 03:35:10,472 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) [2022-04-08 03:35:10,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,639 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2022-04-08 03:35:10,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-08 03:35:10,640 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 [2022-04-08 03:35:10,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:10,643 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) [2022-04-08 03:35:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2022-04-08 03:35:10,646 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) [2022-04-08 03:35:10,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2022-04-08 03:35:10,647 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2022-04-08 03:35:10,694 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,696 INFO L225 Difference]: With dead ends: 40 [2022-04-08 03:35:10,696 INFO L226 Difference]: Without dead ends: 26 [2022-04-08 03:35:10,699 INFO L912 BasicCegarLoop]: 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 [2022-04-08 03:35:10,701 INFO L913 BasicCegarLoop]: 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 [2022-04-08 03:35:10,706 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 25 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-08 03:35:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-04-08 03:35:10,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2022-04-08 03:35:10,716 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:10,717 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) [2022-04-08 03:35:10,719 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) [2022-04-08 03:35:10,720 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) [2022-04-08 03:35:10,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,722 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-08 03:35:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-08 03:35:10,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:10,723 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:10,723 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. [2022-04-08 03:35:10,723 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. [2022-04-08 03:35:10,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:10,725 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-04-08 03:35:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-04-08 03:35:10,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:10,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:10,725 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:10,726 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:10,726 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) [2022-04-08 03:35:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-04-08 03:35:10,727 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2022-04-08 03:35:10,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:10,727 INFO L478 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-04-08 03:35:10,727 INFO L479 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) [2022-04-08 03:35:10,727 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 21 states and 23 transitions. [2022-04-08 03:35:10,751 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-04-08 03:35:10,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-08 03:35:10,752 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:10,752 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:10,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-08 03:35:10,752 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1858105272, now seen corresponding path program 1 times [2022-04-08 03:35:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:10,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1242882820] [2022-04-08 03:35:10,775 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-08 03:35:10,775 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-04-08 03:35:10,776 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 03:35:10,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1858105272, now seen corresponding path program 2 times [2022-04-08 03:35:10,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:10,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461771700] [2022-04-08 03:35:10,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:10,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:35:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:10,873 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 [2022-04-08 03:35:10,873 INFO L290 TraceCheckUtils]: 1: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-08 03:35:10,874 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-08 03:35:10,875 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 [2022-04-08 03:35:10,875 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 [2022-04-08 03:35:10,875 INFO L290 TraceCheckUtils]: 2: Hoare triple {645#true} assume true; {645#true} is VALID [2022-04-08 03:35:10,875 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {645#true} {645#true} #214#return; {645#true} is VALID [2022-04-08 03:35:10,876 INFO L272 TraceCheckUtils]: 4: Hoare triple {645#true} call #t~ret37 := main(); {645#true} is VALID [2022-04-08 03:35:10,880 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_~i~0 50)} is VALID [2022-04-08 03:35:10,881 INFO L290 TraceCheckUtils]: 6: Hoare triple {650#(< main_~i~0 50)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,881 INFO L290 TraceCheckUtils]: 7: Hoare triple {650#(< main_~i~0 50)} 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); {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,882 INFO L290 TraceCheckUtils]: 8: Hoare triple {650#(< main_~i~0 50)} 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; {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,882 INFO L290 TraceCheckUtils]: 9: Hoare triple {650#(< main_~i~0 50)} 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; {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,883 INFO L290 TraceCheckUtils]: 10: Hoare triple {650#(< main_~i~0 50)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,883 INFO L290 TraceCheckUtils]: 11: Hoare triple {650#(< main_~i~0 50)} assume !(~j~0 <= ~n~0); {650#(< main_~i~0 50)} is VALID [2022-04-08 03:35:10,884 INFO L272 TraceCheckUtils]: 12: Hoare triple {650#(< main_~i~0 50)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {651#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 03:35:10,884 INFO L290 TraceCheckUtils]: 13: Hoare triple {651#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {652#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 03:35:10,885 INFO L290 TraceCheckUtils]: 14: Hoare triple {652#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {646#false} is VALID [2022-04-08 03:35:10,885 INFO L290 TraceCheckUtils]: 15: Hoare triple {646#false} assume !false; {646#false} is VALID [2022-04-08 03:35:10,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-08 03:35:10,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:10,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461771700] [2022-04-08 03:35:10,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461771700] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:10,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:10,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 03:35:10,886 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:10,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1242882820] [2022-04-08 03:35:10,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1242882820] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:10,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:10,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 03:35:10,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064645115] [2022-04-08 03:35:10,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:10,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 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 [2022-04-08 03:35:10,888 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:10,888 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), 4 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) [2022-04-08 03:35:10,906 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:10,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 03:35:10,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:10,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 03:35:10,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-08 03:35:10,908 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), 4 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) [2022-04-08 03:35:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:11,206 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2022-04-08 03:35:11,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-08 03:35:11,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 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 [2022-04-08 03:35:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:11,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 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) [2022-04-08 03:35:11,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-08 03:35:11,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 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) [2022-04-08 03:35:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 39 transitions. [2022-04-08 03:35:11,212 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 39 transitions. [2022-04-08 03:35:11,248 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:11,250 INFO L225 Difference]: With dead ends: 36 [2022-04-08 03:35:11,250 INFO L226 Difference]: Without dead ends: 34 [2022-04-08 03:35:11,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-04-08 03:35:11,253 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 03:35:11,255 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 36 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 03:35:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-08 03:35:11,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-04-08 03:35:11,273 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:11,274 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 03:35:11,275 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 03:35:11,275 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 03:35:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:11,278 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-08 03:35:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 03:35:11,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:11,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:11,279 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 34 states. [2022-04-08 03:35:11,279 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand 34 states. [2022-04-08 03:35:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:11,283 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-08 03:35:11,283 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-04-08 03:35:11,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:11,285 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:11,285 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:11,285 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:11,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 03:35:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-04-08 03:35:11,288 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2022-04-08 03:35:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:11,288 INFO L478 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-04-08 03:35:11,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 4 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) [2022-04-08 03:35:11,288 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 32 states and 36 transitions. [2022-04-08 03:35:11,324 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-04-08 03:35:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-08 03:35:11,331 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:11,331 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:11,332 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-08 03:35:11,332 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash 419710194, now seen corresponding path program 1 times [2022-04-08 03:35:11,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:11,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [863879931] [2022-04-08 03:35:11,421 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-08 03:35:11,421 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-04-08 03:35:11,422 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 03:35:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash 419710194, now seen corresponding path program 2 times [2022-04-08 03:35:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:11,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942554462] [2022-04-08 03:35:11,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:11,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:35:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:11,570 INFO L290 TraceCheckUtils]: 0: Hoare triple {881#(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); {868#true} is VALID [2022-04-08 03:35:11,570 INFO L290 TraceCheckUtils]: 1: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,570 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {868#true} {868#true} #214#return; {868#true} is VALID [2022-04-08 03:35:11,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 03:35:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:11,578 INFO L290 TraceCheckUtils]: 0: Hoare triple {868#true} ~cond := #in~cond; {868#true} is VALID [2022-04-08 03:35:11,579 INFO L290 TraceCheckUtils]: 1: Hoare triple {868#true} assume !(0 == ~cond); {868#true} is VALID [2022-04-08 03:35:11,579 INFO L290 TraceCheckUtils]: 2: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,579 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {868#true} {873#(= main_~i~0 0)} #210#return; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,580 INFO L272 TraceCheckUtils]: 0: Hoare triple {868#true} call ULTIMATE.init(); {881#(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 [2022-04-08 03:35:11,581 INFO L290 TraceCheckUtils]: 1: Hoare triple {881#(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); {868#true} is VALID [2022-04-08 03:35:11,582 INFO L290 TraceCheckUtils]: 2: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,583 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {868#true} {868#true} #214#return; {868#true} is VALID [2022-04-08 03:35:11,583 INFO L272 TraceCheckUtils]: 4: Hoare triple {868#true} call #t~ret37 := main(); {868#true} is VALID [2022-04-08 03:35:11,583 INFO L290 TraceCheckUtils]: 5: Hoare triple {868#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; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,584 INFO L290 TraceCheckUtils]: 6: Hoare triple {873#(= main_~i~0 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,585 INFO L290 TraceCheckUtils]: 7: Hoare triple {873#(= 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); {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,585 INFO L290 TraceCheckUtils]: 8: Hoare triple {873#(= 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; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,585 INFO L290 TraceCheckUtils]: 9: Hoare triple {873#(= 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; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,586 INFO L290 TraceCheckUtils]: 10: Hoare triple {873#(= main_~i~0 0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,586 INFO L290 TraceCheckUtils]: 11: Hoare triple {873#(= main_~i~0 0)} assume !(~j~0 <= ~n~0); {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,586 INFO L272 TraceCheckUtils]: 12: Hoare triple {873#(= main_~i~0 0)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {868#true} is VALID [2022-04-08 03:35:11,587 INFO L290 TraceCheckUtils]: 13: Hoare triple {868#true} ~cond := #in~cond; {868#true} is VALID [2022-04-08 03:35:11,588 INFO L290 TraceCheckUtils]: 14: Hoare triple {868#true} assume !(0 == ~cond); {868#true} is VALID [2022-04-08 03:35:11,589 INFO L290 TraceCheckUtils]: 15: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,594 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {868#true} {873#(= main_~i~0 0)} #210#return; {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,595 INFO L290 TraceCheckUtils]: 17: Hoare triple {873#(= main_~i~0 0)} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {873#(= main_~i~0 0)} is VALID [2022-04-08 03:35:11,596 INFO L290 TraceCheckUtils]: 18: Hoare triple {873#(= main_~i~0 0)} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,596 INFO L290 TraceCheckUtils]: 19: Hoare triple {878#(<= main_~i~0 1)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,597 INFO L290 TraceCheckUtils]: 20: Hoare triple {878#(<= main_~i~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); {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,598 INFO L290 TraceCheckUtils]: 21: Hoare triple {878#(<= main_~i~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; {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,598 INFO L290 TraceCheckUtils]: 22: Hoare triple {878#(<= main_~i~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; {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,598 INFO L290 TraceCheckUtils]: 23: Hoare triple {878#(<= main_~i~0 1)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,599 INFO L290 TraceCheckUtils]: 24: Hoare triple {878#(<= main_~i~0 1)} assume !(~j~0 <= ~n~0); {878#(<= main_~i~0 1)} is VALID [2022-04-08 03:35:11,600 INFO L272 TraceCheckUtils]: 25: Hoare triple {878#(<= main_~i~0 1)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {879#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 03:35:11,600 INFO L290 TraceCheckUtils]: 26: Hoare triple {879#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {880#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 03:35:11,600 INFO L290 TraceCheckUtils]: 27: Hoare triple {880#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {869#false} is VALID [2022-04-08 03:35:11,601 INFO L290 TraceCheckUtils]: 28: Hoare triple {869#false} assume !false; {869#false} is VALID [2022-04-08 03:35:11,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-08 03:35:11,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:11,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942554462] [2022-04-08 03:35:11,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942554462] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 03:35:11,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301193570] [2022-04-08 03:35:11,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 03:35:11,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 03:35:11,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:35:11,607 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) [2022-04-08 03:35:11,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-08 03:35:11,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-08 03:35:11,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 03:35:11,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2022-04-08 03:35:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:11,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 03:35:11,940 INFO L272 TraceCheckUtils]: 0: Hoare triple {868#true} call ULTIMATE.init(); {868#true} is VALID [2022-04-08 03:35:11,941 INFO L290 TraceCheckUtils]: 1: Hoare triple {868#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); {868#true} is VALID [2022-04-08 03:35:11,941 INFO L290 TraceCheckUtils]: 2: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,941 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {868#true} {868#true} #214#return; {868#true} is VALID [2022-04-08 03:35:11,941 INFO L272 TraceCheckUtils]: 4: Hoare triple {868#true} call #t~ret37 := main(); {868#true} is VALID [2022-04-08 03:35:11,943 INFO L290 TraceCheckUtils]: 5: Hoare triple {868#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; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,943 INFO L290 TraceCheckUtils]: 6: Hoare triple {900#(<= main_~n~0 5)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,944 INFO L290 TraceCheckUtils]: 7: Hoare triple {900#(<= main_~n~0 5)} 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); {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,945 INFO L290 TraceCheckUtils]: 8: Hoare triple {900#(<= main_~n~0 5)} 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; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,945 INFO L290 TraceCheckUtils]: 9: Hoare triple {900#(<= main_~n~0 5)} 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; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,945 INFO L290 TraceCheckUtils]: 10: Hoare triple {900#(<= main_~n~0 5)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,946 INFO L290 TraceCheckUtils]: 11: Hoare triple {900#(<= main_~n~0 5)} assume !(~j~0 <= ~n~0); {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,946 INFO L272 TraceCheckUtils]: 12: Hoare triple {900#(<= main_~n~0 5)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {868#true} is VALID [2022-04-08 03:35:11,946 INFO L290 TraceCheckUtils]: 13: Hoare triple {868#true} ~cond := #in~cond; {868#true} is VALID [2022-04-08 03:35:11,946 INFO L290 TraceCheckUtils]: 14: Hoare triple {868#true} assume !(0 == ~cond); {868#true} is VALID [2022-04-08 03:35:11,947 INFO L290 TraceCheckUtils]: 15: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:11,947 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {868#true} {900#(<= main_~n~0 5)} #210#return; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,948 INFO L290 TraceCheckUtils]: 17: Hoare triple {900#(<= main_~n~0 5)} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,950 INFO L290 TraceCheckUtils]: 18: Hoare triple {900#(<= main_~n~0 5)} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {900#(<= main_~n~0 5)} is VALID [2022-04-08 03:35:11,951 INFO L290 TraceCheckUtils]: 19: Hoare triple {900#(<= main_~n~0 5)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,951 INFO L290 TraceCheckUtils]: 20: Hoare triple {943#(<= main_~i~0 5)} 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); {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,951 INFO L290 TraceCheckUtils]: 21: Hoare triple {943#(<= main_~i~0 5)} 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; {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,952 INFO L290 TraceCheckUtils]: 22: Hoare triple {943#(<= main_~i~0 5)} 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; {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,952 INFO L290 TraceCheckUtils]: 23: Hoare triple {943#(<= main_~i~0 5)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,953 INFO L290 TraceCheckUtils]: 24: Hoare triple {943#(<= main_~i~0 5)} assume !(~j~0 <= ~n~0); {943#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:11,953 INFO L272 TraceCheckUtils]: 25: Hoare triple {943#(<= main_~i~0 5)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {962#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 03:35:11,954 INFO L290 TraceCheckUtils]: 26: Hoare triple {962#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {966#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 03:35:11,954 INFO L290 TraceCheckUtils]: 27: Hoare triple {966#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {869#false} is VALID [2022-04-08 03:35:11,955 INFO L290 TraceCheckUtils]: 28: Hoare triple {869#false} assume !false; {869#false} is VALID [2022-04-08 03:35:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-08 03:35:11,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 03:35:12,137 INFO L290 TraceCheckUtils]: 28: Hoare triple {869#false} assume !false; {869#false} is VALID [2022-04-08 03:35:12,138 INFO L290 TraceCheckUtils]: 27: Hoare triple {966#(<= 1 __VERIFIER_assert_~cond)} assume 0 == ~cond; {869#false} is VALID [2022-04-08 03:35:12,138 INFO L290 TraceCheckUtils]: 26: Hoare triple {962#(<= 1 |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {966#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-08 03:35:12,139 INFO L272 TraceCheckUtils]: 25: Hoare triple {982#(< main_~i~0 50)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {962#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-08 03:35:12,140 INFO L290 TraceCheckUtils]: 24: Hoare triple {982#(< main_~i~0 50)} assume !(~j~0 <= ~n~0); {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,140 INFO L290 TraceCheckUtils]: 23: Hoare triple {982#(< main_~i~0 50)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,140 INFO L290 TraceCheckUtils]: 22: Hoare triple {982#(< main_~i~0 50)} 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; {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,142 INFO L290 TraceCheckUtils]: 21: Hoare triple {982#(< main_~i~0 50)} 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; {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,142 INFO L290 TraceCheckUtils]: 20: Hoare triple {982#(< main_~i~0 50)} 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); {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,150 INFO L290 TraceCheckUtils]: 19: Hoare triple {1001#(< main_~n~0 50)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {982#(< main_~i~0 50)} is VALID [2022-04-08 03:35:12,151 INFO L290 TraceCheckUtils]: 18: Hoare triple {1001#(< main_~n~0 50)} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,151 INFO L290 TraceCheckUtils]: 17: Hoare triple {1001#(< main_~n~0 50)} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,152 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {868#true} {1001#(< main_~n~0 50)} #210#return; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,152 INFO L290 TraceCheckUtils]: 15: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:12,152 INFO L290 TraceCheckUtils]: 14: Hoare triple {868#true} assume !(0 == ~cond); {868#true} is VALID [2022-04-08 03:35:12,153 INFO L290 TraceCheckUtils]: 13: Hoare triple {868#true} ~cond := #in~cond; {868#true} is VALID [2022-04-08 03:35:12,153 INFO L272 TraceCheckUtils]: 12: Hoare triple {1001#(< main_~n~0 50)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {868#true} is VALID [2022-04-08 03:35:12,153 INFO L290 TraceCheckUtils]: 11: Hoare triple {1001#(< main_~n~0 50)} assume !(~j~0 <= ~n~0); {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,154 INFO L290 TraceCheckUtils]: 10: Hoare triple {1001#(< main_~n~0 50)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,154 INFO L290 TraceCheckUtils]: 9: Hoare triple {1001#(< main_~n~0 50)} 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; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,154 INFO L290 TraceCheckUtils]: 8: Hoare triple {1001#(< main_~n~0 50)} 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; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,155 INFO L290 TraceCheckUtils]: 7: Hoare triple {1001#(< main_~n~0 50)} 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); {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,155 INFO L290 TraceCheckUtils]: 6: Hoare triple {1001#(< main_~n~0 50)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,156 INFO L290 TraceCheckUtils]: 5: Hoare triple {868#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; {1001#(< main_~n~0 50)} is VALID [2022-04-08 03:35:12,156 INFO L272 TraceCheckUtils]: 4: Hoare triple {868#true} call #t~ret37 := main(); {868#true} is VALID [2022-04-08 03:35:12,156 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {868#true} {868#true} #214#return; {868#true} is VALID [2022-04-08 03:35:12,156 INFO L290 TraceCheckUtils]: 2: Hoare triple {868#true} assume true; {868#true} is VALID [2022-04-08 03:35:12,156 INFO L290 TraceCheckUtils]: 1: Hoare triple {868#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); {868#true} is VALID [2022-04-08 03:35:12,156 INFO L272 TraceCheckUtils]: 0: Hoare triple {868#true} call ULTIMATE.init(); {868#true} is VALID [2022-04-08 03:35:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-08 03:35:12,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301193570] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 03:35:12,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 03:35:12,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-04-08 03:35:12,158 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:12,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [863879931] [2022-04-08 03:35:12,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [863879931] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:12,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:12,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-08 03:35:12,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558417873] [2022-04-08 03:35:12,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:12,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-04-08 03:35:12,159 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:12,159 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:12,183 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:12,183 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-08 03:35:12,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:12,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-08 03:35:12,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-08 03:35:12,184 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:12,543 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-04-08 03:35:12,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 03:35:12,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-04-08 03:35:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2022-04-08 03:35:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2022-04-08 03:35:12,549 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 50 transitions. [2022-04-08 03:35:12,599 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:12,600 INFO L225 Difference]: With dead ends: 49 [2022-04-08 03:35:12,600 INFO L226 Difference]: Without dead ends: 47 [2022-04-08 03:35:12,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2022-04-08 03:35:12,601 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 03:35:12,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 39 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 03:35:12,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-04-08 03:35:12,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-04-08 03:35:12,620 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:12,620 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 03:35:12,621 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 03:35:12,621 INFO L87 Difference]: Start difference. First operand 47 states. Second operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 03:35:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:12,622 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-04-08 03:35:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-04-08 03:35:12,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:12,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:12,623 INFO L74 IsIncluded]: Start isIncluded. First operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 47 states. [2022-04-08 03:35:12,624 INFO L87 Difference]: Start difference. First operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Second operand 47 states. [2022-04-08 03:35:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:12,625 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-04-08 03:35:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-04-08 03:35:12,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:12,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:12,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:12,626 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.2) internal successors, (42), 36 states have internal predecessors, (42), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-08 03:35:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-04-08 03:35:12,628 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 29 [2022-04-08 03:35:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:12,628 INFO L478 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-04-08 03:35:12,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:12,629 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 45 states and 51 transitions. [2022-04-08 03:35:12,679 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-04-08 03:35:12,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-08 03:35:12,680 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 03:35:12,681 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 03:35:12,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-08 03:35:12,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 03:35:12,894 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 03:35:12,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 03:35:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash 681721336, now seen corresponding path program 3 times [2022-04-08 03:35:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:12,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1294869997] [2022-04-08 03:35:12,964 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-04-08 03:35:12,965 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-04-08 03:35:12,965 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 03:35:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash 681721336, now seen corresponding path program 4 times [2022-04-08 03:35:12,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 03:35:12,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585155558] [2022-04-08 03:35:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 03:35:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 03:35:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:13,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 03:35:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:13,119 INFO L290 TraceCheckUtils]: 0: Hoare triple {1370#(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); {1352#true} is VALID [2022-04-08 03:35:13,119 INFO L290 TraceCheckUtils]: 1: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,119 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1352#true} {1352#true} #214#return; {1352#true} is VALID [2022-04-08 03:35:13,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 03:35:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:13,126 INFO L290 TraceCheckUtils]: 0: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,126 INFO L290 TraceCheckUtils]: 1: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,126 INFO L290 TraceCheckUtils]: 2: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,127 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1352#true} {1357#(= (+ main_~n~0 (- 5)) 0)} #210#return; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-04-08 03:35:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:13,131 INFO L290 TraceCheckUtils]: 0: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,132 INFO L290 TraceCheckUtils]: 1: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,132 INFO L290 TraceCheckUtils]: 2: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,132 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1352#true} {1357#(= (+ main_~n~0 (- 5)) 0)} #210#return; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,133 INFO L272 TraceCheckUtils]: 0: Hoare triple {1352#true} call ULTIMATE.init(); {1370#(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 [2022-04-08 03:35:13,134 INFO L290 TraceCheckUtils]: 1: Hoare triple {1370#(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); {1352#true} is VALID [2022-04-08 03:35:13,134 INFO L290 TraceCheckUtils]: 2: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,134 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1352#true} {1352#true} #214#return; {1352#true} is VALID [2022-04-08 03:35:13,134 INFO L272 TraceCheckUtils]: 4: Hoare triple {1352#true} call #t~ret37 := main(); {1352#true} is VALID [2022-04-08 03:35:13,135 INFO L290 TraceCheckUtils]: 5: Hoare triple {1352#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; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,135 INFO L290 TraceCheckUtils]: 6: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,136 INFO L290 TraceCheckUtils]: 7: Hoare triple {1357#(= (+ 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); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,136 INFO L290 TraceCheckUtils]: 8: Hoare triple {1357#(= (+ 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; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,137 INFO L290 TraceCheckUtils]: 9: Hoare triple {1357#(= (+ 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; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,137 INFO L290 TraceCheckUtils]: 10: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,137 INFO L290 TraceCheckUtils]: 11: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} assume !(~j~0 <= ~n~0); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,138 INFO L272 TraceCheckUtils]: 12: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1352#true} is VALID [2022-04-08 03:35:13,138 INFO L290 TraceCheckUtils]: 13: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,138 INFO L290 TraceCheckUtils]: 14: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,138 INFO L290 TraceCheckUtils]: 15: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,138 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1352#true} {1357#(= (+ main_~n~0 (- 5)) 0)} #210#return; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,139 INFO L290 TraceCheckUtils]: 17: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,139 INFO L290 TraceCheckUtils]: 18: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,140 INFO L290 TraceCheckUtils]: 19: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,140 INFO L290 TraceCheckUtils]: 20: Hoare triple {1357#(= (+ 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); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,141 INFO L290 TraceCheckUtils]: 21: Hoare triple {1357#(= (+ 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; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,141 INFO L290 TraceCheckUtils]: 22: Hoare triple {1357#(= (+ 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; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,143 INFO L290 TraceCheckUtils]: 23: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,143 INFO L290 TraceCheckUtils]: 24: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} assume !(~j~0 <= ~n~0); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,143 INFO L272 TraceCheckUtils]: 25: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1352#true} is VALID [2022-04-08 03:35:13,143 INFO L290 TraceCheckUtils]: 26: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,143 INFO L290 TraceCheckUtils]: 27: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,143 INFO L290 TraceCheckUtils]: 28: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,144 INFO L284 TraceCheckUtils]: 29: Hoare quadruple {1352#true} {1357#(= (+ main_~n~0 (- 5)) 0)} #210#return; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,144 INFO L290 TraceCheckUtils]: 30: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,145 INFO L290 TraceCheckUtils]: 31: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1357#(= (+ main_~n~0 (- 5)) 0)} is VALID [2022-04-08 03:35:13,145 INFO L290 TraceCheckUtils]: 32: Hoare triple {1357#(= (+ main_~n~0 (- 5)) 0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-08 03:35:13,146 INFO L290 TraceCheckUtils]: 33: Hoare triple {1366#(and (<= main_~i~0 main_~n~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); {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-08 03:35:13,147 INFO L290 TraceCheckUtils]: 34: Hoare triple {1366#(and (<= main_~i~0 main_~n~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; {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-08 03:35:13,147 INFO L290 TraceCheckUtils]: 35: Hoare triple {1366#(and (<= main_~i~0 main_~n~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; {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-08 03:35:13,148 INFO L290 TraceCheckUtils]: 36: Hoare triple {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} is VALID [2022-04-08 03:35:13,148 INFO L290 TraceCheckUtils]: 37: Hoare triple {1366#(and (<= main_~i~0 main_~n~0) (= (+ main_~n~0 (- 5)) 0))} assume !(~j~0 <= ~n~0); {1367#(<= main_~i~0 5)} is VALID [2022-04-08 03:35:13,149 INFO L272 TraceCheckUtils]: 38: Hoare triple {1367#(<= main_~i~0 5)} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1368#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-08 03:35:13,149 INFO L290 TraceCheckUtils]: 39: Hoare triple {1368#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {1369#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-08 03:35:13,150 INFO L290 TraceCheckUtils]: 40: Hoare triple {1369#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {1353#false} is VALID [2022-04-08 03:35:13,150 INFO L290 TraceCheckUtils]: 41: Hoare triple {1353#false} assume !false; {1353#false} is VALID [2022-04-08 03:35:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-04-08 03:35:13,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 03:35:13,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585155558] [2022-04-08 03:35:13,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585155558] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 03:35:13,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121520432] [2022-04-08 03:35:13,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-08 03:35:13,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 03:35:13,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 03:35:13,152 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) [2022-04-08 03:35:13,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-08 03:35:13,249 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-08 03:35:13,249 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-08 03:35:13,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-08 03:35:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 03:35:13,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-08 03:35:13,439 INFO L272 TraceCheckUtils]: 0: Hoare triple {1352#true} call ULTIMATE.init(); {1352#true} is VALID [2022-04-08 03:35:13,439 INFO L290 TraceCheckUtils]: 1: Hoare triple {1352#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); {1352#true} is VALID [2022-04-08 03:35:13,439 INFO L290 TraceCheckUtils]: 2: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,439 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1352#true} {1352#true} #214#return; {1352#true} is VALID [2022-04-08 03:35:13,440 INFO L272 TraceCheckUtils]: 4: Hoare triple {1352#true} call #t~ret37 := main(); {1352#true} is VALID [2022-04-08 03:35:13,443 INFO L290 TraceCheckUtils]: 5: Hoare triple {1352#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; {1389#(<= 5 main_~n~0)} is VALID [2022-04-08 03:35:13,444 INFO L290 TraceCheckUtils]: 6: Hoare triple {1389#(<= 5 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1393#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-08 03:35:13,445 INFO L290 TraceCheckUtils]: 7: Hoare triple {1393#(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); {1393#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-08 03:35:13,446 INFO L290 TraceCheckUtils]: 8: Hoare triple {1393#(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; {1393#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-08 03:35:13,446 INFO L290 TraceCheckUtils]: 9: Hoare triple {1393#(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; {1393#(and (<= 5 main_~n~0) (<= main_~j~0 0))} is VALID [2022-04-08 03:35:13,447 INFO L290 TraceCheckUtils]: 10: Hoare triple {1393#(and (<= 5 main_~n~0) (<= main_~j~0 0))} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1406#(and (<= 5 main_~n~0) (<= main_~j~0 1))} is VALID [2022-04-08 03:35:13,447 INFO L290 TraceCheckUtils]: 11: Hoare triple {1406#(and (<= 5 main_~n~0) (<= main_~j~0 1))} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L272 TraceCheckUtils]: 12: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 13: Hoare triple {1353#false} ~cond := #in~cond; {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 14: Hoare triple {1353#false} assume !(0 == ~cond); {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 15: Hoare triple {1353#false} assume true; {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1353#false} {1353#false} #210#return; {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 17: Hoare triple {1353#false} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 18: Hoare triple {1353#false} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1353#false} is VALID [2022-04-08 03:35:13,448 INFO L290 TraceCheckUtils]: 19: Hoare triple {1353#false} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 20: Hoare triple {1353#false} 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); {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 21: Hoare triple {1353#false} 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; {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 22: Hoare triple {1353#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; {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 23: Hoare triple {1353#false} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 24: Hoare triple {1353#false} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L272 TraceCheckUtils]: 25: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 26: Hoare triple {1353#false} ~cond := #in~cond; {1353#false} is VALID [2022-04-08 03:35:13,449 INFO L290 TraceCheckUtils]: 27: Hoare triple {1353#false} assume !(0 == ~cond); {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 28: Hoare triple {1353#false} assume true; {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L284 TraceCheckUtils]: 29: Hoare quadruple {1353#false} {1353#false} #210#return; {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 30: Hoare triple {1353#false} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 31: Hoare triple {1353#false} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 32: Hoare triple {1353#false} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 33: Hoare triple {1353#false} 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); {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 34: Hoare triple {1353#false} 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; {1353#false} is VALID [2022-04-08 03:35:13,450 INFO L290 TraceCheckUtils]: 35: Hoare triple {1353#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; {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L290 TraceCheckUtils]: 36: Hoare triple {1353#false} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L290 TraceCheckUtils]: 37: Hoare triple {1353#false} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L272 TraceCheckUtils]: 38: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L290 TraceCheckUtils]: 39: Hoare triple {1353#false} ~cond := #in~cond; {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L290 TraceCheckUtils]: 40: Hoare triple {1353#false} assume 0 == ~cond; {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L290 TraceCheckUtils]: 41: Hoare triple {1353#false} assume !false; {1353#false} is VALID [2022-04-08 03:35:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-04-08 03:35:13,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-08 03:35:13,614 INFO L290 TraceCheckUtils]: 41: Hoare triple {1353#false} assume !false; {1353#false} is VALID [2022-04-08 03:35:13,614 INFO L290 TraceCheckUtils]: 40: Hoare triple {1353#false} assume 0 == ~cond; {1353#false} is VALID [2022-04-08 03:35:13,614 INFO L290 TraceCheckUtils]: 39: Hoare triple {1353#false} ~cond := #in~cond; {1353#false} is VALID [2022-04-08 03:35:13,614 INFO L272 TraceCheckUtils]: 38: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 37: Hoare triple {1353#false} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 36: Hoare triple {1353#false} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 35: Hoare triple {1353#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; {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 34: Hoare triple {1353#false} 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; {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 33: Hoare triple {1353#false} 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); {1353#false} is VALID [2022-04-08 03:35:13,615 INFO L290 TraceCheckUtils]: 32: Hoare triple {1353#false} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1353#false} is VALID [2022-04-08 03:35:13,616 INFO L290 TraceCheckUtils]: 31: Hoare triple {1353#false} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1353#false} is VALID [2022-04-08 03:35:13,618 INFO L290 TraceCheckUtils]: 30: Hoare triple {1353#false} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1353#false} is VALID [2022-04-08 03:35:13,621 INFO L284 TraceCheckUtils]: 29: Hoare quadruple {1352#true} {1353#false} #210#return; {1353#false} is VALID [2022-04-08 03:35:13,626 INFO L290 TraceCheckUtils]: 28: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,626 INFO L290 TraceCheckUtils]: 27: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,626 INFO L290 TraceCheckUtils]: 26: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,627 INFO L272 TraceCheckUtils]: 25: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1352#true} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 24: Hoare triple {1353#false} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 23: Hoare triple {1353#false} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 22: Hoare triple {1353#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; {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 21: Hoare triple {1353#false} 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; {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 20: Hoare triple {1353#false} 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); {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 19: Hoare triple {1353#false} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 18: Hoare triple {1353#false} #t~post4 := ~i~0;~i~0 := 1 + #t~post4;havoc #t~post4; {1353#false} is VALID [2022-04-08 03:35:13,627 INFO L290 TraceCheckUtils]: 17: Hoare triple {1353#false} call write~real(~w~0, ~#b~0.base, ~#b~0.offset + 8 * ~i~0, 8); {1353#false} is VALID [2022-04-08 03:35:13,628 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {1352#true} {1353#false} #210#return; {1353#false} is VALID [2022-04-08 03:35:13,628 INFO L290 TraceCheckUtils]: 15: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,628 INFO L290 TraceCheckUtils]: 14: Hoare triple {1352#true} assume !(0 == ~cond); {1352#true} is VALID [2022-04-08 03:35:13,628 INFO L290 TraceCheckUtils]: 13: Hoare triple {1352#true} ~cond := #in~cond; {1352#true} is VALID [2022-04-08 03:35:13,628 INFO L272 TraceCheckUtils]: 12: Hoare triple {1353#false} call __VERIFIER_assert((if ~i~0 < 50 then 1 else 0)); {1352#true} is VALID [2022-04-08 03:35:13,630 INFO L290 TraceCheckUtils]: 11: Hoare triple {1590#(<= main_~j~0 main_~n~0)} assume !(~j~0 <= ~n~0); {1353#false} is VALID [2022-04-08 03:35:13,630 INFO L290 TraceCheckUtils]: 10: Hoare triple {1594#(<= (+ main_~j~0 1) main_~n~0)} #t~post5 := ~j~0;~j~0 := 1 + #t~post5;havoc #t~post5; {1590#(<= main_~j~0 main_~n~0)} is VALID [2022-04-08 03:35:13,630 INFO L290 TraceCheckUtils]: 9: Hoare triple {1594#(<= (+ 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; {1594#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-08 03:35:13,631 INFO L290 TraceCheckUtils]: 8: Hoare triple {1594#(<= (+ 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; {1594#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-08 03:35:13,631 INFO L290 TraceCheckUtils]: 7: Hoare triple {1594#(<= (+ 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); {1594#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-08 03:35:13,632 INFO L290 TraceCheckUtils]: 6: Hoare triple {1607#(<= 1 main_~n~0)} assume !!(~i~0 <= ~n~0);~w~0 := 0.0;~j~0 := 0; {1594#(<= (+ main_~j~0 1) main_~n~0)} is VALID [2022-04-08 03:35:13,632 INFO L290 TraceCheckUtils]: 5: Hoare triple {1352#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; {1607#(<= 1 main_~n~0)} is VALID [2022-04-08 03:35:13,632 INFO L272 TraceCheckUtils]: 4: Hoare triple {1352#true} call #t~ret37 := main(); {1352#true} is VALID [2022-04-08 03:35:13,632 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1352#true} {1352#true} #214#return; {1352#true} is VALID [2022-04-08 03:35:13,632 INFO L290 TraceCheckUtils]: 2: Hoare triple {1352#true} assume true; {1352#true} is VALID [2022-04-08 03:35:13,632 INFO L290 TraceCheckUtils]: 1: Hoare triple {1352#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); {1352#true} is VALID [2022-04-08 03:35:13,633 INFO L272 TraceCheckUtils]: 0: Hoare triple {1352#true} call ULTIMATE.init(); {1352#true} is VALID [2022-04-08 03:35:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-08 03:35:13,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121520432] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-08 03:35:13,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-08 03:35:13,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2022-04-08 03:35:13,635 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 03:35:13,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1294869997] [2022-04-08 03:35:13,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1294869997] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 03:35:13,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 03:35:13,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 03:35:13,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865497791] [2022-04-08 03:35:13,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 03:35:13,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-04-08 03:35:13,637 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 03:35:13,637 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,658 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:13,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-08 03:35:13,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 03:35:13,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-08 03:35:13,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-08 03:35:13,659 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,878 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-04-08 03:35:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-08 03:35:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-04-08 03:35:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 03:35:13,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2022-04-08 03:35:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2022-04-08 03:35:13,881 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 24 transitions. [2022-04-08 03:35:13,904 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:13,905 INFO L225 Difference]: With dead ends: 45 [2022-04-08 03:35:13,905 INFO L226 Difference]: Without dead ends: 0 [2022-04-08 03:35:13,905 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-04-08 03:35:13,906 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 03:35:13,906 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 03:35:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-08 03:35:13,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-08 03:35:13,907 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 03:35:13,907 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:35:13,907 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:35:13,907 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:35:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,907 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 03:35:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:35:13,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:13,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:13,908 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 03:35:13,908 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-08 03:35:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 03:35:13,908 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-08 03:35:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:35:13,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:13,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 03:35:13,908 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 03:35:13,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 03:35:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-08 03:35:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-08 03:35:13,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-04-08 03:35:13,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 03:35:13,909 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-08 03:35:13,909 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-08 03:35:13,909 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-08 03:35:13,909 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 03:35:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-08 03:35:13,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 03:35:13,912 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-08 03:35:13,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-08 03:35:14,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 03:35:14,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-08 03:35:14,404 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-08 03:35:14,404 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-08 03:35:14,404 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-08 03:35:14,404 INFO L885 garLoopResultBuilder]: At program point L118-2(lines 118 136) the Hoare annotation is: true [2022-04-08 03:35:14,404 INFO L885 garLoopResultBuilder]: At program point L118-3(lines 118 136) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L118-4(lines 118 136) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L120(line 120) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L120-1(line 120) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point ludcmpEXIT(lines 111 155) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L878 garLoopResultBuilder]: At program point ludcmpENTRY(lines 111 155) the Hoare annotation is: (= |old(#memory_real)| |#memory_real|) [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L129-2(lines 129 135) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L129-3(lines 129 135) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L121-2(lines 121 128) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L121-3(lines 121 128) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L121-4(lines 121 128) the Hoare annotation is: true [2022-04-08 03:35:14,405 INFO L885 garLoopResultBuilder]: At program point L146-2(lines 146 152) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L146-3(lines 146 152) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L146-4(lines 146 152) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point ludcmpFINAL(lines 111 155) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L138-2(lines 138 144) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L138-3(lines 138 144) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L138-4(lines 138 144) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L132-2(lines 132 133) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L132-3(lines 132 133) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L132-4(lines 132 133) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L124(lines 124 126) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L124-1(lines 124 126) the Hoare annotation is: true [2022-04-08 03:35:14,406 INFO L885 garLoopResultBuilder]: At program point L149-2(lines 149 150) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L149-3(lines 149 150) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L149-4(lines 149 150) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L141-2(lines 141 142) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L141-3(lines 141 142) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L141-4(lines 141 142) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L125-2(lines 125 126) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L125-3(lines 125 126) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L878 garLoopResultBuilder]: At program point L117(line 117) the Hoare annotation is: (= |old(#memory_real)| |#memory_real|) [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L80(lines 80 81) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point L80-2(lines 80 81) the Hoare annotation is: true [2022-04-08 03:35:14,407 INFO L885 garLoopResultBuilder]: At program point fabsEXIT(lines 76 83) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point fabsENTRY(lines 76 83) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point fabsFINAL(lines 76 83) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L878 garLoopResultBuilder]: At program point L99-2(line 99) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,408 INFO L878 garLoopResultBuilder]: At program point L93-2(lines 93 104) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,408 INFO L878 garLoopResultBuilder]: At program point L93-3(lines 93 104) the Hoare annotation is: (= 5 main_~n~0) [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point L93-4(lines 93 104) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 85 109) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 85 109) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L885 garLoopResultBuilder]: At program point L106(line 106) the Hoare annotation is: true [2022-04-08 03:35:14,408 INFO L878 garLoopResultBuilder]: At program point L102(line 102) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,408 INFO L878 garLoopResultBuilder]: At program point L96-2(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,409 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 85 109) the Hoare annotation is: (= |old(#memory_real)| |#memory_real|) [2022-04-08 03:35:14,409 INFO L878 garLoopResultBuilder]: At program point L96-3(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,409 INFO L878 garLoopResultBuilder]: At program point L96-4(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,409 INFO L878 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: (and (<= main_~i~0 main_~n~0) (= 5 main_~n~0)) [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,409 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (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|)) [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,409 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-08 03:35:14,410 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-08 03:35:14,410 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 03:35:14,410 INFO L878 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 03:35:14,410 INFO L878 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 03:35:14,410 INFO L878 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-08 03:35:14,410 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-08 03:35:14,413 INFO L719 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2] [2022-04-08 03:35:14,414 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-08 03:35:14,417 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-08 03:35:14,419 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-08 03:35:14,432 INFO L163 areAnnotationChecker]: CFG has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-08 03:35:14,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.04 03:35:14 BoogieIcfgContainer [2022-04-08 03:35:14,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-08 03:35:14,444 INFO L158 Benchmark]: Toolchain (without parser) took 6074.72ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 130.0MB in the beginning and 166.6MB in the end (delta: -36.6MB). Peak memory consumption was 95.7MB. Max. memory is 8.0GB. [2022-04-08 03:35:14,445 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 182.5MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-08 03:35:14,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.60ms. Allocated memory is still 182.5MB. Free memory was 129.8MB in the beginning and 155.8MB in the end (delta: -26.1MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. [2022-04-08 03:35:14,445 INFO L158 Benchmark]: Boogie Preprocessor took 51.62ms. Allocated memory is still 182.5MB. Free memory was 155.8MB in the beginning and 153.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-08 03:35:14,445 INFO L158 Benchmark]: RCFGBuilder took 505.53ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 133.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-04-08 03:35:14,445 INFO L158 Benchmark]: TraceAbstraction took 5207.93ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 132.7MB in the beginning and 166.6MB in the end (delta: -33.9MB). Peak memory consumption was 98.4MB. Max. memory is 8.0GB. [2022-04-08 03:35:14,447 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 0.17ms. Allocated memory is still 182.5MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 301.60ms. Allocated memory is still 182.5MB. Free memory was 129.8MB in the beginning and 155.8MB in the end (delta: -26.1MB). Peak memory consumption was 6.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.62ms. Allocated memory is still 182.5MB. Free memory was 155.8MB in the beginning and 153.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 505.53ms. Allocated memory is still 182.5MB. Free memory was 153.4MB in the beginning and 133.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 5207.93ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 132.7MB in the beginning and 166.6MB in the end (delta: -33.9MB). Peak memory consumption was 98.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 120 mSDtfsCounter, 298 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 164 PreInvPairs, 301 NumberOfFragments, 166 HoareAnnotationTreeSize, 164 FomulaSimplifications, 479 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 64 FomulaSimplificationsInter, 226 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: i <= n && 5 == n - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 111]: Procedure Contract for ludcmp Derived contract for procedure ludcmp: 1 - ProcedureContractResult [Line: 76]: Procedure Contract for fabs Derived contract for procedure fabs: 1 - ProcedureContractResult [Line: 85]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-04-08 03:35:14,482 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...