/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/floats-cbmc-regression/float13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:52:23,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:52:23,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:52:23,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:52:23,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:52:23,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:52:23,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:52:23,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:52:23,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:52:23,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:52:23,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:52:23,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:52:23,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:52:23,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:52:23,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:52:23,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:52:23,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:52:23,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:52:23,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:52:23,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:52:23,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:52:23,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:52:23,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:52:23,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:52:23,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:52:23,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:52:23,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:52:23,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:52:23,215 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 22:52:23,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:52:23,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:52:23,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:52:23,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:52:23,228 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:52:23,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:52:23,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:52:23,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:52:23,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:52:23,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:52:23,229 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:52:23,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:52:23,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:52:23,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:52:23,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:52:23,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:52:23,459 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:52:23,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c [2022-01-31 22:52:23,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22999b4c/bf77b03ec7be4b249f9c5098575f4647/FLAG678282266 [2022-01-31 22:52:23,880 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:52:23,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float13.c [2022-01-31 22:52:23,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22999b4c/bf77b03ec7be4b249f9c5098575f4647/FLAG678282266 [2022-01-31 22:52:23,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22999b4c/bf77b03ec7be4b249f9c5098575f4647 [2022-01-31 22:52:23,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:52:23,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:52:23,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:52:23,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:52:23,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:52:23,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:52:23" (1/1) ... [2022-01-31 22:52:23,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b41e6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:23, skipping insertion in model container [2022-01-31 22:52:23,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:52:23" (1/1) ... [2022-01-31 22:52:23,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:52:23,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:52:24,045 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-cbmc-regression/float13.c[497,510] [2022-01-31 22:52:24,055 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-cbmc-regression/float13.c[569,582] [2022-01-31 22:52:24,057 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-cbmc-regression/float13.c[631,644] [2022-01-31 22:52:24,059 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-cbmc-regression/float13.c[693,706] [2022-01-31 22:52:24,060 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-cbmc-regression/float13.c[764,777] [2022-01-31 22:52:24,060 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-cbmc-regression/float13.c[836,849] [2022-01-31 22:52:24,063 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-cbmc-regression/float13.c[895,908] [2022-01-31 22:52:24,064 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-cbmc-regression/float13.c[954,967] [2022-01-31 22:52:24,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:52:24,071 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:52:24,081 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-cbmc-regression/float13.c[497,510] [2022-01-31 22:52:24,083 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-cbmc-regression/float13.c[569,582] [2022-01-31 22:52:24,084 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-cbmc-regression/float13.c[631,644] [2022-01-31 22:52:24,087 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-cbmc-regression/float13.c[693,706] [2022-01-31 22:52:24,088 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-cbmc-regression/float13.c[764,777] [2022-01-31 22:52:24,090 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-cbmc-regression/float13.c[836,849] [2022-01-31 22:52:24,091 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-cbmc-regression/float13.c[895,908] [2022-01-31 22:52:24,092 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-cbmc-regression/float13.c[954,967] [2022-01-31 22:52:24,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:52:24,105 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:52:24,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24 WrapperNode [2022-01-31 22:52:24,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:52:24,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:52:24,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:52:24,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:52:24,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:52:24,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:52:24,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:52:24,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:52:24,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (1/1) ... [2022-01-31 22:52:24,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:52:24,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:52:24,169 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 22:52:24,187 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 22:52:24,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:52:24,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:52:24,203 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:52:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:52:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:52:24,249 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:52:24,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:52:24,337 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:52:24,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:52:24,341 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-31 22:52:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:52:24 BoogieIcfgContainer [2022-01-31 22:52:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:52:24,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:52:24,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:52:24,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:52:24,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:52:23" (1/3) ... [2022-01-31 22:52:24,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68da2521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:52:24, skipping insertion in model container [2022-01-31 22:52:24,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:52:24" (2/3) ... [2022-01-31 22:52:24,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68da2521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:52:24, skipping insertion in model container [2022-01-31 22:52:24,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:52:24" (3/3) ... [2022-01-31 22:52:24,347 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2022-01-31 22:52:24,350 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:52:24,350 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-01-31 22:52:24,374 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:52:24,378 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 22:52:24,378 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-31 22:52:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 37 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 22:52:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-31 22:52:24,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:52:24,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:52:24,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-01-31 22:52:24,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:52:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash -434634858, now seen corresponding path program 1 times [2022-01-31 22:52:24,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:52:24,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [30025643] [2022-01-31 22:52:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:52:24,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:52:24,435 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:52:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:52:24,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:52:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:52:24,528 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:52:24,530 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:52:24,532 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-01-31 22:52:24,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-01-31 22:52:24,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-01-31 22:52:24,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-01-31 22:52:24,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-01-31 22:52:24,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-01-31 22:52:24,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2022-01-31 22:52:24,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2022-01-31 22:52:24,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:52:24,540 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-31 22:52:24,542 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:52:24,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:52:24 BoogieIcfgContainer [2022-01-31 22:52:24,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:52:24,553 INFO L158 Benchmark]: Toolchain (without parser) took 650.34ms. Allocated memory is still 223.3MB. Free memory was 174.5MB in the beginning and 173.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.3MB. Max. memory is 8.0GB. [2022-01-31 22:52:24,554 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 223.3MB. Free memory is still 190.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:52:24,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.33ms. Allocated memory is still 223.3MB. Free memory was 174.4MB in the beginning and 199.9MB in the end (delta: -25.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-31 22:52:24,558 INFO L158 Benchmark]: Boogie Preprocessor took 33.20ms. Allocated memory is still 223.3MB. Free memory was 199.9MB in the beginning and 198.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:52:24,558 INFO L158 Benchmark]: RCFGBuilder took 201.60ms. Allocated memory is still 223.3MB. Free memory was 198.3MB in the beginning and 187.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-31 22:52:24,558 INFO L158 Benchmark]: TraceAbstraction took 209.35ms. Allocated memory is still 223.3MB. Free memory was 187.3MB in the beginning and 173.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-31 22:52:24,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 223.3MB. Free memory is still 190.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.33ms. Allocated memory is still 223.3MB. Free memory was 174.4MB in the beginning and 199.9MB in the end (delta: -25.5MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.20ms. Allocated memory is still 223.3MB. Free memory was 199.9MB in the beginning and 198.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 201.60ms. Allocated memory is still 223.3MB. Free memory was 198.3MB in the beginning and 187.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 209.35ms. Allocated memory is still 223.3MB. Free memory was 187.3MB in the beginning and 173.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. 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: 15]: 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 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L15] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 8 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=42occurred 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: 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 22:52:24,591 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...