/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/float-benchs/nan_float_range.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:44:47,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:44:47,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:44:47,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:44:47,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:44:47,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:44:47,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:44:47,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:44:47,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:44:47,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:44:47,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:44:47,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:44:47,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:44:47,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:44:47,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:44:47,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:44:47,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:44:47,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:44:47,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:44:47,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:44:47,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:44:47,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:44:47,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:44:47,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:44:47,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 16:44:47,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:44:47,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:44:47,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:44:47,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:44:47,751 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:44:47,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:44:47,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:44:47,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:44:47,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:44:47,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:44:47,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:44:47,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:44:47,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:44:47,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:44:47,754 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:44:47,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:44:47,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:44:47,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:44:47,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:44:47,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:44:47,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:44:47,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:44:47,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:47,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:44:47,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:44:47,756 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:44:47,756 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:44:47,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:44:48,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:44:48,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:44:48,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:44:48,015 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:44:48,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/nan_float_range.c [2022-01-31 16:44:48,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059d3c762/cc9705d8cda245eeb088900343ce8ee5/FLAGc24684fd2 [2022-01-31 16:44:48,501 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:44:48,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/nan_float_range.c [2022-01-31 16:44:48,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059d3c762/cc9705d8cda245eeb088900343ce8ee5/FLAGc24684fd2 [2022-01-31 16:44:48,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/059d3c762/cc9705d8cda245eeb088900343ce8ee5 [2022-01-31 16:44:48,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:44:48,910 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:44:48,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:48,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:44:48,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:44:48,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:48" (1/1) ... [2022-01-31 16:44:48,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fed4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:48, skipping insertion in model container [2022-01-31 16:44:48,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:48" (1/1) ... [2022-01-31 16:44:48,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:44:48,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:44:49,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/nan_float_range.c[423,436] [2022-01-31 16:44:49,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:49,081 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:44:49,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/nan_float_range.c[423,436] [2022-01-31 16:44:49,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:44:49,131 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:44:49,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49 WrapperNode [2022-01-31 16:44:49,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:44:49,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:44:49,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:44:49,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:44:49,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:44:49,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:44:49,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:44:49,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:44:49,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:44:49,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:44:49,221 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 16:44:49,235 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 16:44:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:44:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:44:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:44:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 16:44:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 16:44:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:44:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:44:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:44:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:44:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:44:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:44:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:44:49,328 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:44:49,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:44:49,460 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:44:49,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:44:49,465 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 16:44:49,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:49 BoogieIcfgContainer [2022-01-31 16:44:49,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:44:49,467 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:44:49,467 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:44:49,479 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:44:49,486 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:49" (1/1) ... [2022-01-31 16:44:49,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:49 BasicIcfg [2022-01-31 16:44:49,516 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:44:49,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:44:49,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:44:49,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:44:49,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:48" (1/4) ... [2022-01-31 16:44:49,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2543bc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:49, skipping insertion in model container [2022-01-31 16:44:49,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:49" (2/4) ... [2022-01-31 16:44:49,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2543bc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:49, skipping insertion in model container [2022-01-31 16:44:49,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:49" (3/4) ... [2022-01-31 16:44:49,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2543bc99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:49, skipping insertion in model container [2022-01-31 16:44:49,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:44:49" (4/4) ... [2022-01-31 16:44:49,522 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.cJordan [2022-01-31 16:44:49,526 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:44:49,526 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:44:49,589 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:44:49,594 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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=FAST_UPR [2022-01-31 16:44:49,595 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:44:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 16:44:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-31 16:44:49,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:44:49,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:44:49,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:44:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:44:49,635 INFO L85 PathProgramCache]: Analyzing trace with hash -280505062, now seen corresponding path program 1 times [2022-01-31 16:44:49,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:44:49,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943118657] [2022-01-31 16:44:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:44:49,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:44:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:49,742 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 16:44:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 16:44:49,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-31 16:44:49,782 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 16:44:49,784 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 16:44:49,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:44:49,790 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-31 16:44:49,793 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 16:44:49,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:49 BasicIcfg [2022-01-31 16:44:49,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 16:44:49,812 INFO L158 Benchmark]: Toolchain (without parser) took 901.68ms. Allocated memory was 184.5MB in the beginning and 259.0MB in the end (delta: 74.4MB). Free memory was 127.8MB in the beginning and 207.5MB in the end (delta: -79.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:49,812 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 184.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:49,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.77ms. Allocated memory was 184.5MB in the beginning and 259.0MB in the end (delta: 74.4MB). Free memory was 127.7MB in the beginning and 233.8MB in the end (delta: -106.1MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-01-31 16:44:49,814 INFO L158 Benchmark]: Boogie Preprocessor took 44.42ms. Allocated memory is still 259.0MB. Free memory was 233.8MB in the beginning and 232.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 16:44:49,815 INFO L158 Benchmark]: RCFGBuilder took 275.83ms. Allocated memory is still 259.0MB. Free memory was 232.2MB in the beginning and 221.2MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-31 16:44:49,819 INFO L158 Benchmark]: IcfgTransformer took 48.37ms. Allocated memory is still 259.0MB. Free memory was 221.2MB in the beginning and 220.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 16:44:49,820 INFO L158 Benchmark]: TraceAbstraction took 293.51ms. Allocated memory is still 259.0MB. Free memory was 219.6MB in the beginning and 207.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 16:44:49,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 184.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 231.77ms. Allocated memory was 184.5MB in the beginning and 259.0MB in the end (delta: 74.4MB). Free memory was 127.7MB in the beginning and 233.8MB in the end (delta: -106.1MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.42ms. Allocated memory is still 259.0MB. Free memory was 233.8MB in the beginning and 232.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 275.83ms. Allocated memory is still 259.0MB. Free memory was 232.2MB in the beginning and 221.2MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 48.37ms. Allocated memory is still 259.0MB. Free memory was 221.2MB in the beginning and 220.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 293.51ms. Allocated memory is still 259.0MB. Free memory was 219.6MB in the beginning and 207.5MB in the end (delta: 12.1MB). 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryFLOATComparisonOperation at line 16. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 VAL [x=50] [L16] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=19occurred 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, 11 NumberOfCodeBlocks, 11 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 [2022-01-31 16:44:49,861 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...