/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:53:50,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:53:50,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:53:50,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:53:50,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:53:50,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:53:50,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:53:50,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:53:50,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:53:50,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:53:50,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:53:50,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:53:50,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:53:50,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:53:50,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:53:50,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:53:50,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:53:50,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:53:50,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:53:50,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:53:50,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:53:50,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:53:50,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:53:50,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:53:50,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 17:53:50,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 17:53:50,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 17:53:50,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 17:53:50,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 17:53:50,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 17:53:50,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 17:53:50,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 17:53:50,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 17:53:50,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 17:53:50,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 17:53:50,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 17:53:50,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 17:53:50,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 17:53:50,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:53:50,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:53:50,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:53:50,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:53:50,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:53:50,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:53:50,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:53:50,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:53:50,919 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:53:50,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:53:50,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:53:50,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:53:50,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:53:50,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:53:50,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:53:50,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:53:50,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:53:50,921 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:53:50,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:53:50,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:53:50,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:53:50,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:53:50,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:53:50,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:53:50,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:53:50,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:53:50,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:53:50,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:53:50,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:53:50,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:53:50,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:53:50,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:53:50,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:53:50,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:53:51,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:53:51,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:53:51,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:53:51,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:53:51,355 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:53:51,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c [2020-10-23 17:53:51,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e2e373/e906dc16e7f540b28b334797056a9ba9/FLAG37b9e8a8d [2020-10-23 17:53:52,157 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:53:52,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c [2020-10-23 17:53:52,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e2e373/e906dc16e7f540b28b334797056a9ba9/FLAG37b9e8a8d [2020-10-23 17:53:52,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1e2e373/e906dc16e7f540b28b334797056a9ba9 [2020-10-23 17:53:52,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:53:52,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:53:52,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:53:52,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:53:52,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:53:52,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b33ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52, skipping insertion in model container [2020-10-23 17:53:52,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:53:52,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:53:52,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:53:52,768 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:53:52,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:53:52,804 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:53:52,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52 WrapperNode [2020-10-23 17:53:52,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:53:52,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:53:52,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:53:52,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:53:52,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... [2020-10-23 17:53:52,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:53:52,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:53:52,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:53:52,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:53:52,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:53:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:53:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:53:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:53:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:53:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:53:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:53:52,920 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:53:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:53:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:53:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:53:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:53:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:53:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:53:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:53:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:53:53,158 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:53:53,159 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 17:53:53,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:53:53 BoogieIcfgContainer [2020-10-23 17:53:53,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:53:53,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:53:53,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:53:53,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:53:53,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:53:52" (1/3) ... [2020-10-23 17:53:53,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89e0e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:53:53, skipping insertion in model container [2020-10-23 17:53:53,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:53:52" (2/3) ... [2020-10-23 17:53:53,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89e0e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:53:53, skipping insertion in model container [2020-10-23 17:53:53,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:53:53" (3/3) ... [2020-10-23 17:53:53,174 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-10-23 17:53:53,192 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:53:53,198 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:53:53,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:53:53,258 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:53:53,258 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:53:53,258 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:53:53,258 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:53:53,259 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:53:53,259 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:53:53,259 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:53:53,264 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:53:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-23 17:53:53,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-23 17:53:53,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:53:53,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 17:53:53,316 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:53:53,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:53:53,323 INFO L82 PathProgramCache]: Analyzing trace with hash 602327776, now seen corresponding path program 1 times [2020-10-23 17:53:53,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:53:53,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838631384] [2020-10-23 17:53:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:53:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:53:53,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:53:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:53:53,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:53:53,613 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:53:53,614 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:53:53,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:53:53,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:53:53 BoogieIcfgContainer [2020-10-23 17:53:53,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:53:53,663 INFO L168 Benchmark]: Toolchain (without parser) took 1127.51 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 125.8 MB in the end (delta: 573.6 kB). Peak memory consumption was 1.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:53:53,665 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:53:53,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:53:53,671 INFO L168 Benchmark]: Boogie Preprocessor took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 17:53:53,673 INFO L168 Benchmark]: RCFGBuilder took 319.85 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 103.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 17:53:53,674 INFO L168 Benchmark]: TraceAbstraction took 493.70 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 125.8 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:53:53,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 265.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 116.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 319.85 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 103.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 493.70 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 125.8 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; VAL [f=57, fp=57] [L11] COND TRUE !(d == fp) VAL [f=57, fp=57] [L11] CALL reach_error() [L3] __assert_fail("0", "float-to-double2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=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, 9 NumberOfCodeBlocks, 9 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 Received shutdown request...