/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/fabs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:58:42,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:58:42,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:58:42,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:58:42,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 05:58:42,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 05:58:42,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 05:58:42,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 05:58:42,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 05:58:42,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 05:58:42,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 05:58:42,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 05:58:42,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 05:58:42,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 05:58:42,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 05:58:42,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 05:58:42,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 05:58:42,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 05:58:42,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 05:58:42,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 05:58:42,915 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 05:58:42,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:58:42,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:58:42,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:58:42,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:58:42,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:58:42,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:58:42,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:58:42,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:58:42,949 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:58:42,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:58:42,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:58:42,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:58:42,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:58:42,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:58:42,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:58:42,952 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:58:42,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:58:42,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:58:42,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:58:42,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:58:42,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:58:43,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:58:43,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:58:43,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:58:43,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:58:43,204 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:58:43,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/fabs.i [2022-01-10 05:58:43,262 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eece1e502/dd18a30ac8154259a99593c9f0348c17/FLAG150c6a25d [2022-01-10 05:58:43,779 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:58:43,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/fabs.i [2022-01-10 05:58:43,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eece1e502/dd18a30ac8154259a99593c9f0348c17/FLAG150c6a25d [2022-01-10 05:58:44,247 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eece1e502/dd18a30ac8154259a99593c9f0348c17 [2022-01-10 05:58:44,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:58:44,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:58:44,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:58:44,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:58:44,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:58:44,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:44,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563881cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44, skipping insertion in model container [2022-01-10 05:58:44,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:44,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:58:44,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:58:44,824 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/fabs.i[36279,36292] [2022-01-10 05:58:44,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:58:44,844 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:58:44,869 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/fabs.i[36279,36292] [2022-01-10 05:58:44,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:58:44,973 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:58:44,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44 WrapperNode [2022-01-10 05:58:44,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:58:44,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:58:44,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:58:44,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:58:44,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,032 INFO L137 Inliner]: procedures = 448, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-01-10 05:58:45,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:58:45,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:58:45,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:58:45,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:58:45,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:58:45,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:58:45,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:58:45,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:58:45,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (1/1) ... [2022-01-10 05:58:45,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:58:45,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:58:45,105 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 05:58:45,118 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 05:58:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:58:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 05:58:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 05:58:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:58:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:58:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:58:45,223 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:58:45,224 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:58:45,325 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:58:45,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:58:45,330 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 05:58:45,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:45 BoogieIcfgContainer [2022-01-10 05:58:45,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:58:45,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:58:45,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:58:45,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:58:45,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:58:44" (1/3) ... [2022-01-10 05:58:45,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341e701e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:45, skipping insertion in model container [2022-01-10 05:58:45,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:58:44" (2/3) ... [2022-01-10 05:58:45,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341e701e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:58:45, skipping insertion in model container [2022-01-10 05:58:45,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:58:45" (3/3) ... [2022-01-10 05:58:45,337 INFO L111 eAbstractionObserver]: Analyzing ICFG fabs.i [2022-01-10 05:58:45,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:58:45,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:58:45,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:58:45,392 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 05:58:45,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:58:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 05:58:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 05:58:45,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:58:45,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 05:58:45,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:58:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:58:45,412 INFO L85 PathProgramCache]: Analyzing trace with hash 890047930, now seen corresponding path program 1 times [2022-01-10 05:58:45,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:58:45,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197436653] [2022-01-10 05:58:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:58:45,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:58:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:58:45,425 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 05:58:45,472 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 05:58:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:58:45,528 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 05:58:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 05:58:45,564 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 05:58:45,566 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 05:58:45,567 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 05:58:45,581 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 05:58:45,778 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 05:58:45,783 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-10 05:58:45,786 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 05:58:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:58:45 BoogieIcfgContainer [2022-01-10 05:58:45,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 05:58:45,807 INFO L158 Benchmark]: Toolchain (without parser) took 1556.22ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 122.4MB in the beginning and 127.1MB in the end (delta: -4.7MB). Peak memory consumption was 30.3MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,808 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 05:58:45,809 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.22ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 122.2MB in the beginning and 153.9MB in the end (delta: -31.7MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,810 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.64ms. Allocated memory is still 210.8MB. Free memory was 153.9MB in the beginning and 151.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,810 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 210.8MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,811 INFO L158 Benchmark]: RCFGBuilder took 266.83ms. Allocated memory is still 210.8MB. Free memory was 150.2MB in the beginning and 140.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,811 INFO L158 Benchmark]: TraceAbstraction took 473.83ms. Allocated memory is still 210.8MB. Free memory was 139.7MB in the beginning and 127.1MB in the end (delta: 12.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 05:58:45,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 140.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 719.22ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 122.2MB in the beginning and 153.9MB in the end (delta: -31.7MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.64ms. Allocated memory is still 210.8MB. Free memory was 153.9MB in the beginning and 151.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 210.8MB. Free memory was 151.8MB in the beginning and 150.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 266.83ms. Allocated memory is still 210.8MB. Free memory was 150.2MB in the beginning and 140.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 473.83ms. Allocated memory is still 210.8MB. Free memory was 139.7MB in the beginning and 127.1MB in the end (delta: 12.6MB). Peak memory consumption was 11.5MB. 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(fabs(+3.0) == +3.0) 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, 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, 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 05:58:45,855 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...