/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/float-benchs/addsub_double_exact.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:24:05,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:24:05,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:24:05,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:24:05,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:24:05,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:24:05,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:24:05,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:24:05,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:24:05,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:24:05,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:24:05,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:24:05,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:24:05,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:24:05,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:24:05,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:24:05,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:24:05,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:24:05,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:24:05,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:24:05,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:24:05,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:24:05,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:24:05,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:24:05,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:24:05,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:24:05,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:24:05,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:24:05,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:24:05,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:24:05,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:24:05,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:24:05,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:24:05,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:24:05,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:24:05,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:24:05,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:24:05,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:24:05,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:24:05,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:24:05,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:24:05,413 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 20:24:05,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:24:05,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:24:05,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:24:05,443 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:24:05,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:24:05,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:24:05,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:24:05,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:24:05,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:24:05,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:24:05,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:24:05,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:24:05,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:24:05,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:24:05,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:24:05,446 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:24:05,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:24:05,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:24:05,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:24:05,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:24:05,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:24:05,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:24:05,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:24:05,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:24:05,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:24:05,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:24:05,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:24:05,888 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:24:05,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2020-10-23 20:24:05,959 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bc3196b/cf19bbc654004a35a3e47d2c72c28504/FLAG5133ce9fb [2020-10-23 20:24:06,490 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:24:06,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact.c [2020-10-23 20:24:06,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bc3196b/cf19bbc654004a35a3e47d2c72c28504/FLAG5133ce9fb [2020-10-23 20:24:06,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bc3196b/cf19bbc654004a35a3e47d2c72c28504 [2020-10-23 20:24:06,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:24:06,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:24:06,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:06,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:24:06,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:24:06,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:06" (1/1) ... [2020-10-23 20:24:06,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9e0f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:06, skipping insertion in model container [2020-10-23 20:24:06,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:24:06" (1/1) ... [2020-10-23 20:24:06,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:24:06,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:24:07,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:07,066 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:24:07,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:24:07,094 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:24:07,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07 WrapperNode [2020-10-23 20:24:07,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:24:07,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:24:07,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:24:07,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:24:07,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (1/1) ... [2020-10-23 20:24:07,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:24:07,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:24:07,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:24:07,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:24:07,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (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 20:24:07,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:24:07,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:24:07,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 20:24:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:24:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:24:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:24:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:24:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:24:07,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:24:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:24:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:24:07,675 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:24:07,675 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:24:07,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:24:07 BoogieIcfgContainer [2020-10-23 20:24:07,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:24:07,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:24:07,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:24:07,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:24:07,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:24:06" (1/3) ... [2020-10-23 20:24:07,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a6f83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:24:07, skipping insertion in model container [2020-10-23 20:24:07,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:24:07" (2/3) ... [2020-10-23 20:24:07,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a6f83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:24:07, skipping insertion in model container [2020-10-23 20:24:07,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:24:07" (3/3) ... [2020-10-23 20:24:07,691 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-10-23 20:24:07,704 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:24:07,708 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:24:07,724 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:24:07,762 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:24:07,762 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:24:07,762 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:24:07,763 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:24:07,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:24:07,763 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:24:07,763 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:24:07,763 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:24:07,786 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-23 20:24:07,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 20:24:07,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:24:07,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:24:07,800 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:24:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:24:07,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1954658919, now seen corresponding path program 1 times [2020-10-23 20:24:07,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:24:07,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991820589] [2020-10-23 20:24:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:24:07,882 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:24:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:07,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:24:08,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:24:08,077 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:24:08,078 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:24:08,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:24:08,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:24:08 BoogieIcfgContainer [2020-10-23 20:24:08,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:24:08,106 INFO L168 Benchmark]: Toolchain (without parser) took 1247.02 ms. Allocated memory is still 159.4 MB. Free memory was 136.3 MB in the beginning and 139.6 MB in the end (delta: -3.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:24:08,107 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:24:08,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.57 ms. Allocated memory is still 159.4 MB. Free memory was 135.7 MB in the beginning and 126.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:08,114 INFO L168 Benchmark]: Boogie Preprocessor took 30.66 ms. Allocated memory is still 159.4 MB. Free memory was 126.7 MB in the beginning and 125.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:08,116 INFO L168 Benchmark]: RCFGBuilder took 551.30 ms. Allocated memory is still 159.4 MB. Free memory was 125.2 MB in the beginning and 112.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:24:08,117 INFO L168 Benchmark]: TraceAbstraction took 420.13 ms. Allocated memory is still 159.4 MB. Free memory was 111.7 MB in the beginning and 139.6 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:24:08,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 159.4 MB. Free memory is still 135.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 226.57 ms. Allocated memory is still 159.4 MB. Free memory was 135.7 MB in the beginning and 126.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.66 ms. Allocated memory is still 159.4 MB. Free memory was 126.7 MB in the beginning and 125.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 551.30 ms. Allocated memory is still 159.4 MB. Free memory was 125.2 MB in the beginning and 112.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 420.13 ms. Allocated memory is still 159.4 MB. Free memory was 111.7 MB in the beginning and 139.6 MB in the end (delta: -27.8 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 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 15. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.) [L6] COND TRUE !(cond) [L6] CALL reach_error() [L3] __assert_fail("0", "addsub_double_exact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 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=36occurred 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...