/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:23:43,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:23:43,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:23:43,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:23:43,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:23:43,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:23:43,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:23:43,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:23:43,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:23:43,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:23:43,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:23:43,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:23:43,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:23:43,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:23:43,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:23:43,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:23:43,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:23:43,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:23:43,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:23:43,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:23:43,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:23:43,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:23:43,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:23:43,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:23:43,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:23:43,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:23:43,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:23:43,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:23:43,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:23:43,894 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:23:43,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:23:43,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:23:43,896 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:23:43,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:23:43,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:23:43,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:23:43,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:23:43,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:23:43,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:23:43,898 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:23:43,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:23:43,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:23:43,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:23:43,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:23:43,899 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:23:43,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:23:43,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:23:43,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:23:43,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:23:43,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:23:43,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:23:43,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:23:44,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:23:44,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:23:44,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:23:44,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:23:44,351 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:23:44,352 INFO L432 ainManager$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 20:23:44,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52920407/e3d1bb9d347a445aaa61786fe2a77387/FLAG35712355e [2020-10-23 20:23:45,143 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:23:45,144 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c [2020-10-23 20:23:45,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52920407/e3d1bb9d347a445aaa61786fe2a77387/FLAG35712355e [2020-10-23 20:23:45,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f52920407/e3d1bb9d347a445aaa61786fe2a77387 [2020-10-23 20:23:45,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:23:45,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:23:45,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:23:45,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:23:45,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:23:45,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f201372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45, skipping insertion in model container [2020-10-23 20:23:45,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:23:45,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:23:45,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:23:45,738 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:23:45,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:23:45,779 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:23:45,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45 WrapperNode [2020-10-23 20:23:45,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:23:45,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:23:45,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:23:45,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:23:45,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (1/1) ... [2020-10-23 20:23:45,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:23:45,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:23:45,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:23:45,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:23:45,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (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 20:23:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:23:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:23:45,894 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:23:45,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:23:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:23:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:23:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:23:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:23:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:23:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:23:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:23:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:23:45,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:23:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:23:45,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:23:46,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:23:46,112 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:23:46,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:46 BoogieIcfgContainer [2020-10-23 20:23:46,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:23:46,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:23:46,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:23:46,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:23:46,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:23:45" (1/3) ... [2020-10-23 20:23:46,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188cb351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:46, skipping insertion in model container [2020-10-23 20:23:46,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:45" (2/3) ... [2020-10-23 20:23:46,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188cb351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:46, skipping insertion in model container [2020-10-23 20:23:46,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:46" (3/3) ... [2020-10-23 20:23:46,134 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-10-23 20:23:46,171 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:23:46,183 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:23:46,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:23:46,267 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:23:46,267 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:23:46,267 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:23:46,268 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:23:46,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:23:46,270 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:23:46,270 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:23:46,270 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:23:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-23 20:23:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-23 20:23:46,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:23:46,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:23:46,308 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:23:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:23:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash -849672527, now seen corresponding path program 1 times [2020-10-23 20:23:46,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:23:46,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473386153] [2020-10-23 20:23:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:23:46,438 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:23:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:46,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:46,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:46,643 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:23:46,643 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:23:46,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:23:46,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:46 BoogieIcfgContainer [2020-10-23 20:23:46,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:23:46,673 INFO L168 Benchmark]: Toolchain (without parser) took 1161.30 ms. Allocated memory is still 152.0 MB. Free memory was 128.9 MB in the beginning and 129.0 MB in the end (delta: -129.2 kB). Peak memory consumption was 854.3 kB. Max. memory is 8.0 GB. [2020-10-23 20:23:46,674 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:46,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.23 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:46,679 INFO L168 Benchmark]: Boogie Preprocessor took 32.95 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:46,681 INFO L168 Benchmark]: RCFGBuilder took 299.18 ms. Allocated memory is still 152.0 MB. Free memory was 117.3 MB in the beginning and 105.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:46,682 INFO L168 Benchmark]: TraceAbstraction took 551.79 ms. Allocated memory is still 152.0 MB. Free memory was 104.8 MB in the beginning and 129.0 MB in the end (delta: -24.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:46,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 152.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 263.23 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.95 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 299.18 ms. Allocated memory is still 152.0 MB. Free memory was 117.3 MB in the beginning and 105.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 551.79 ms. Allocated memory is still 152.0 MB. Free memory was 104.8 MB in the beginning and 129.0 MB in the end (delta: -24.2 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 someUnaryFLOAToperation at line 7, overapproximation of someUnaryDOUBLEoperation at line 8. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; [L11] COND TRUE !(d == fp) [L11] CALL reach_error() [L3] __assert_fail("0", "float-to-double2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 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=27occurred 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: 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 Received shutdown request...