/usr/bin/java -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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:58:20,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:58:20,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:58:20,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:58:20,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 05:58:20,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 05:58:20,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 05:58:20,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 05:58:20,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 05:58:20,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 05:58:20,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 05:58:20,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 05:58:20,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 05:58:20,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 05:58:20,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 05:58:20,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 05:58:20,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 05:58:20,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 05:58:20,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 05:58:20,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 05:58:20,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 05:58:20,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:58:20,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:58:20,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:58:20,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:58:20,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:58:20,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:58:20,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:58:20,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:58:20,532 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:58:20,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:58:20,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:58:20,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:58:20,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:58:20,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:58:20,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:58:20,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:58:20,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:58:20,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:58:20,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:58:20,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:58:20,536 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:58:20,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:58:20,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:58:20,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:58:20,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:58:20,782 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:58:20,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c [2022-01-10 05:58:20,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147f96f57/49c76835c7964c998644f78e1a001548/FLAG6d2231f2e [2022-01-10 05:58:21,280 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:58:21,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c [2022-01-10 05:58:21,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147f96f57/49c76835c7964c998644f78e1a001548/FLAG6d2231f2e [2022-01-10 05:58:21,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/147f96f57/49c76835c7964c998644f78e1a001548 [2022-01-10 05:58:21,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:58:21,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:58:21,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:58:21,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:58:21,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:58:21,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:21,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e00ab55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21, skipping insertion in model container [2022-01-10 05:58:21,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:21,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:58:21,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:58:21,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c[831,844] [2022-01-10 05:58:21,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:58:21,952 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:58:21,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_Householder_constant.c[831,844] [2022-01-10 05:58:21,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:58:21,997 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:58:21,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21 WrapperNode [2022-01-10 05:58:21,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:58:21,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:58:21,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:58:21,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:58:22,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,042 INFO L137 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-01-10 05:58:22,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:58:22,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:58:22,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:58:22,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:58:22,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:58:22,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:58:22,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:58:22,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:58:22,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (1/1) ... [2022-01-10 05:58:22,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:58:22,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:58:22,125 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) [2022-01-10 05:58:22,147 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 [2022-01-10 05:58:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:58:22,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:58:22,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:58:22,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:58:22,221 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:58:22,223 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:58:22,387 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:58:22,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:58:22,392 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 05:58:22,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:22 BoogieIcfgContainer [2022-01-10 05:58:22,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:58:22,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:58:22,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:58:22,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:58:22,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:58:21" (1/3) ... [2022-01-10 05:58:22,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ca8807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:22, skipping insertion in model container [2022-01-10 05:58:22,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:21" (2/3) ... [2022-01-10 05:58:22,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ca8807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:22, skipping insertion in model container [2022-01-10 05:58:22,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:22" (3/3) ... [2022-01-10 05:58:22,417 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_constant.c [2022-01-10 05:58:22,421 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:58:22,421 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:58:22,485 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:58:22,495 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 05:58:22,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:58:22,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-01-10 05:58:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 05:58:22,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:58:22,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 05:58:22,519 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:58:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:58:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1706227183, now seen corresponding path program 1 times [2022-01-10 05:58:22,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:58:22,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493871432] [2022-01-10 05:58:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:58:22,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:58:22,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:58:22,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 05:58:22,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 05:58:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:58:22,631 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 05:58:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:58:22,673 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 05:58:22,675 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 05:58:22,676 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 05:58:22,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 05:58:22,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 05:58:22,890 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 05:58:22,892 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 05:58:22,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:58:22 BoogieIcfgContainer [2022-01-10 05:58:22,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 05:58:22,915 INFO L158 Benchmark]: Toolchain (without parser) took 1233.41ms. Allocated memory was 190.8MB in the beginning and 284.2MB in the end (delta: 93.3MB). Free memory was 132.0MB in the beginning and 225.7MB in the end (delta: -93.7MB). Peak memory consumption was 149.2kB. Max. memory is 8.0GB. [2022-01-10 05:58:22,915 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 05:58:22,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.79ms. Allocated memory was 190.8MB in the beginning and 284.2MB in the end (delta: 93.3MB). Free memory was 131.9MB in the beginning and 255.1MB in the end (delta: -123.2MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-01-10 05:58:22,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.11ms. Allocated memory is still 284.2MB. Free memory was 255.1MB in the beginning and 253.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 05:58:22,922 INFO L158 Benchmark]: Boogie Preprocessor took 41.07ms. Allocated memory is still 284.2MB. Free memory was 253.5MB in the beginning and 252.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 05:58:22,924 INFO L158 Benchmark]: RCFGBuilder took 308.85ms. Allocated memory is still 284.2MB. Free memory was 252.5MB in the beginning and 239.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 05:58:22,924 INFO L158 Benchmark]: TraceAbstraction took 517.92ms. Allocated memory is still 284.2MB. Free memory was 239.4MB in the beginning and 225.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-10 05:58:22,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 315.79ms. Allocated memory was 190.8MB in the beginning and 284.2MB in the end (delta: 93.3MB). Free memory was 131.9MB in the beginning and 255.1MB in the end (delta: -123.2MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.11ms. Allocated memory is still 284.2MB. Free memory was 255.1MB in the beginning and 253.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.07ms. Allocated memory is still 284.2MB. Free memory was 253.5MB in the beginning and 252.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 308.85ms. Allocated memory is still 284.2MB. Free memory was 252.5MB in the beginning and 239.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 517.92ms. Allocated memory is still 284.2MB. Free memory was 239.4MB in the beginning and 225.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of floatingLiteral_0.000001_DOUBLE at line 22, overapproximation of fp.gt at line 33, overapproximation of fp.geq at line 55, overapproximation of fp.div at line 44, overapproximation of fp.neg at line 32, overapproximation of floatingLiteral_1.0_DOUBLE at line 28, overapproximation of floatingLiteral_1_DOUBLE at line 51, overapproximation of fp.leq at line 55, overapproximation of fp.lt at line 33, overapproximation of fp.mul at line 30. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, r; [L51] d = 1. [L51] COND TRUE d <= 20. [L53] CALL, EXPR SqrtR(d) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND TRUE Input <= 1.0 [L28] xn = 1.0 [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [cond=0, i=0] [L35] COND FALSE !(\read(cond)) VAL [cond=0, i=0] [L44] return 1.0 / xnp1; VAL [cond=0, i=0] [L53] RET, EXPR SqrtR(d) [L53] r = SqrtR(d) [L55] CALL __VERIFIER_assert(r >= 1.0 && r <= 5.0) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-10 05:58:22,960 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...