/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:49,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:49,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:49,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:00:49,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:49,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:49,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:49,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:49,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:49,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:49,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:49,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:49,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:49,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:49,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:49,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:49,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:00:49,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:49,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:49,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:49,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 23:00:49,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:49,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:49,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:49,686 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:49,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:49,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:49,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:49,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:49,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:49,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:49,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:49,689 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:49,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:49,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:49,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:49,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:49,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:49,915 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:49,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2022-01-31 23:00:49,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9f39a65/1d4873d9ba68410a9c2df74565ec6676/FLAG53ef64ecb [2022-01-31 23:00:50,339 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:50,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2022-01-31 23:00:50,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9f39a65/1d4873d9ba68410a9c2df74565ec6676/FLAG53ef64ecb [2022-01-31 23:00:50,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9f39a65/1d4873d9ba68410a9c2df74565ec6676 [2022-01-31 23:00:50,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:50,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:50,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:50,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:50,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:50,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:50" (1/1) ... [2022-01-31 23:00:50,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515b3eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:50, skipping insertion in model container [2022-01-31 23:00:50,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:50" (1/1) ... [2022-01-31 23:00:50,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:50,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:50,945 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-newlib/float_req_bl_0270a.c[4702,4715] [2022-01-31 23:00:50,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:50,953 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:50,991 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-newlib/float_req_bl_0270a.c[4702,4715] [2022-01-31 23:00:50,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:51,004 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:51,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51 WrapperNode [2022-01-31 23:00:51,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:51,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:51,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:51,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:51,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:51,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:51,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:51,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:51,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (1/1) ... [2022-01-31 23:00:51,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:51,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:51,109 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) [2022-01-31 23:00:51,110 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 [2022-01-31 23:00:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:51,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2022-01-31 23:00:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-01-31 23:00:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:00:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2022-01-31 23:00:51,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:00:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2022-01-31 23:00:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:51,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:51,217 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:51,218 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:51,512 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:51,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:51,519 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-31 23:00:51,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:51 BoogieIcfgContainer [2022-01-31 23:00:51,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:51,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:51,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:51,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:51,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:50" (1/3) ... [2022-01-31 23:00:51,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f45919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:51, skipping insertion in model container [2022-01-31 23:00:51,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:51" (2/3) ... [2022-01-31 23:00:51,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f45919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:51, skipping insertion in model container [2022-01-31 23:00:51,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:51" (3/3) ... [2022-01-31 23:00:51,528 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2022-01-31 23:00:51,533 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:51,533 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:51,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:51,573 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=JORDAN [2022-01-31 23:00:51,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 67 states have internal predecessors, (105), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:00:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-31 23:00:51,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:51,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:51,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 204171079, now seen corresponding path program 1 times [2022-01-31 23:00:51,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:51,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107737875] [2022-01-31 23:00:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:51,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:51,670 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:00:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:51,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:00:51,937 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:51,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107737875] [2022-01-31 23:00:51,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2107737875] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:51,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:51,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:51,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052709926] [2022-01-31 23:00:51,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:51,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:51,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:51,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:51,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:51,976 INFO L87 Difference]: Start difference. First operand has 80 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 67 states have internal predecessors, (105), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:00:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:52,356 INFO L93 Difference]: Finished difference Result 152 states and 229 transitions. [2022-01-31 23:00:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:52,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-01-31 23:00:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:52,365 INFO L225 Difference]: With dead ends: 152 [2022-01-31 23:00:52,365 INFO L226 Difference]: Without dead ends: 76 [2022-01-31 23:00:52,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:00:52,371 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 85 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:00:52,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 91 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 23:00:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-31 23:00:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-01-31 23:00:52,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 23:00:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 94 transitions. [2022-01-31 23:00:52,418 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 94 transitions. Word has length 17 [2022-01-31 23:00:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:52,419 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 94 transitions. [2022-01-31 23:00:52,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 23:00:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 94 transitions. [2022-01-31 23:00:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-31 23:00:52,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:52,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:52,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:52,421 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:52,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:52,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2082143930, now seen corresponding path program 1 times [2022-01-31 23:00:52,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:52,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942090217] [2022-01-31 23:00:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:52,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:52,425 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:52,452 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:52,490 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:52,491 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:52,493 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:52,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:52,497 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:52,499 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:52,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:52 BoogieIcfgContainer [2022-01-31 23:00:52,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:52,512 INFO L158 Benchmark]: Toolchain (without parser) took 1778.52ms. Allocated memory is still 196.1MB. Free memory was 139.9MB in the beginning and 77.1MB in the end (delta: 62.8MB). Peak memory consumption was 62.8MB. Max. memory is 8.0GB. [2022-01-31 23:00:52,512 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory was 156.7MB in the beginning and 156.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:52,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.80ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 163.1MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. [2022-01-31 23:00:52,513 INFO L158 Benchmark]: Boogie Preprocessor took 42.05ms. Allocated memory is still 196.1MB. Free memory was 163.1MB in the beginning and 161.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:52,514 INFO L158 Benchmark]: RCFGBuilder took 472.29ms. Allocated memory is still 196.1MB. Free memory was 161.0MB in the beginning and 142.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-31 23:00:52,514 INFO L158 Benchmark]: TraceAbstraction took 989.32ms. Allocated memory is still 196.1MB. Free memory was 142.1MB in the beginning and 77.1MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-01-31 23:00:52,516 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 196.1MB. Free memory was 156.7MB in the beginning and 156.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 269.80ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 163.1MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.05ms. Allocated memory is still 196.1MB. Free memory was 163.1MB in the beginning and 161.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 472.29ms. Allocated memory is still 196.1MB. Free memory was 161.0MB in the beginning and 142.7MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 989.32ms. Allocated memory is still 196.1MB. Free memory was 142.1MB in the beginning and 77.1MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. 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: 200]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 195, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 89 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 23:00:52,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...