/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/floats-esbmc-regression/rounding_functions.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:59:04,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:59:04,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:59:04,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:59:04,510 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 05:59:04,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:59:04,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:59:04,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:59:04,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:59:04,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:59:04,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:59:04,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:59:04,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:59:04,534 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:59:04,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:59:04,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:59:04,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:59:04,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:59:04,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:59:04,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:59:04,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:59:04,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:59:04,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:59:04,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:59:04,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:59:04,741 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:59:04,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/rounding_functions.i [2022-01-10 05:59:04,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72708cd21/cfffb5422ac1400c83bb59cc415ae8fc/FLAGa24c41e41 [2022-01-10 05:59:05,218 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:59:05,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/rounding_functions.i [2022-01-10 05:59:05,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72708cd21/cfffb5422ac1400c83bb59cc415ae8fc/FLAGa24c41e41 [2022-01-10 05:59:05,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72708cd21/cfffb5422ac1400c83bb59cc415ae8fc [2022-01-10 05:59:05,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:59:05,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:59:05,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:59:05,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:59:05,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:59:05,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dae8fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05, skipping insertion in model container [2022-01-10 05:59:05,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:59:05,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:59:05,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/rounding_functions.i[36293,36306] [2022-01-10 05:59:05,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:59:05,662 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:59:05,685 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/rounding_functions.i[36293,36306] [2022-01-10 05:59:05,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:59:05,778 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:59:05,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05 WrapperNode [2022-01-10 05:59:05,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:59:05,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:59:05,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:59:05,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:59:05,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,818 INFO L137 Inliner]: procedures = 448, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2022-01-10 05:59:05,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:59:05,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:59:05,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:59:05,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:59:05,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:59:05,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:59:05,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:59:05,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:59:05,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (1/1) ... [2022-01-10 05:59:05,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:59:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:59:05,861 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 05:59:05,862 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 05:59:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:59:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 05:59:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 05:59:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:59:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:59:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:59:05,954 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:59:05,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:59:06,100 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:59:06,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:59:06,119 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 05:59:06,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:59:06 BoogieIcfgContainer [2022-01-10 05:59:06,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:59:06,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:59:06,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:59:06,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:59:06,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:59:05" (1/3) ... [2022-01-10 05:59:06,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a215c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:59:06, skipping insertion in model container [2022-01-10 05:59:06,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:59:05" (2/3) ... [2022-01-10 05:59:06,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a215c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:59:06, skipping insertion in model container [2022-01-10 05:59:06,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:59:06" (3/3) ... [2022-01-10 05:59:06,126 INFO L111 eAbstractionObserver]: Analyzing ICFG rounding_functions.i [2022-01-10 05:59:06,129 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:59:06,130 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:59:06,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:59:06,195 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 05:59:06,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:59:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-10 05:59:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 05:59:06,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:59:06,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 05:59:06,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:59:06,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:59:06,226 INFO L85 PathProgramCache]: Analyzing trace with hash 890602042, now seen corresponding path program 1 times [2022-01-10 05:59:06,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:59:06,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549842863] [2022-01-10 05:59:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:59:06,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:59:06,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:59:06,237 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 05:59:06,245 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 05:59:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:59:06,291 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 05:59:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:59:06,309 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 05:59:06,310 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 05:59:06,311 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 05:59:06,323 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 05:59:06,523 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 05:59:06,529 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 05:59:06,531 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 05:59:06,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:59:06 BoogieIcfgContainer [2022-01-10 05:59:06,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 05:59:06,547 INFO L158 Benchmark]: Toolchain (without parser) took 1300.27ms. Allocated memory was 191.9MB in the beginning and 265.3MB in the end (delta: 73.4MB). Free memory was 139.1MB in the beginning and 180.6MB in the end (delta: -41.5MB). Peak memory consumption was 31.2MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,548 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 05:59:06,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.18ms. Allocated memory was 191.9MB in the beginning and 265.3MB in the end (delta: 73.4MB). Free memory was 138.8MB in the beginning and 208.9MB in the end (delta: -70.0MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.60ms. Allocated memory is still 265.3MB. Free memory was 208.9MB in the beginning and 206.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,555 INFO L158 Benchmark]: Boogie Preprocessor took 14.69ms. Allocated memory is still 265.3MB. Free memory was 206.3MB in the beginning and 205.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,556 INFO L158 Benchmark]: RCFGBuilder took 285.05ms. Allocated memory is still 265.3MB. Free memory was 205.2MB in the beginning and 193.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,556 INFO L158 Benchmark]: TraceAbstraction took 425.05ms. Allocated memory is still 265.3MB. Free memory was 193.1MB in the beginning and 180.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 05:59:06,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 530.18ms. Allocated memory was 191.9MB in the beginning and 265.3MB in the end (delta: 73.4MB). Free memory was 138.8MB in the beginning and 208.9MB in the end (delta: -70.0MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.60ms. Allocated memory is still 265.3MB. Free memory was 208.9MB in the beginning and 206.3MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.69ms. Allocated memory is still 265.3MB. Free memory was 206.3MB in the beginning and 205.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 285.05ms. Allocated memory is still 265.3MB. Free memory was 205.2MB in the beginning and 193.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 425.05ms. Allocated memory is still 265.3MB. Free memory was 193.1MB in the beginning and 180.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 878]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.eq at line 882. Possible FailurePath: [L882] CALL __VERIFIER_assert(round(2.3) == 2.0) VAL [\old(cond)=0] [L878] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L878] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=35occurred 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, 6 NumberOfCodeBlocks, 6 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 05:59:06,588 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...