/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-no-simp3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:23:27,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:23:27,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:23:27,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:23:27,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:23:27,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:23:27,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:23:27,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:23:27,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:23:27,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:23:27,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:23:27,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:23:27,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:23:27,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:23:27,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:23:27,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:23:27,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:23:27,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:23:28,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:23:28,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:23:28,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:23:28,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:23:28,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:23:28,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:23:28,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:23:28,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:23:28,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:23:28,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:23:28,035 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 20:23:28,047 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:23:28,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:23:28,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:23:28,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:23:28,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:23:28,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:23:28,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:23:28,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:23:28,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:23:28,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:23:28,052 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:23:28,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:23:28,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:23:28,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:23:28,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:23:28,053 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:23:28,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:23:28,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:23:28,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:23:28,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:23:28,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:23:28,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:23:28,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:23:28,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:23:28,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:23:28,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:23:28,509 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:23:28,510 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:23:28,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-10-23 20:23:28,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9e5339a/05e92ac8947340ecb22287d0eb2337d6/FLAG89d33244b [2020-10-23 20:23:29,268 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:23:29,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-10-23 20:23:29,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9e5339a/05e92ac8947340ecb22287d0eb2337d6/FLAG89d33244b [2020-10-23 20:23:29,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9e5339a/05e92ac8947340ecb22287d0eb2337d6 [2020-10-23 20:23:29,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:23:29,650 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:23:29,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:23:29,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:23:29,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:23:29,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4d5ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29, skipping insertion in model container [2020-10-23 20:23:29,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:23:29,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:23:29,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:23:29,858 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:23:29,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:23:29,890 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:23:29,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29 WrapperNode [2020-10-23 20:23:29,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:23:29,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:23:29,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:23:29,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:23:29,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (1/1) ... [2020-10-23 20:23:29,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:23:29,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:23:29,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:23:29,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:23:29,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (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 20:23:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:23:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:23:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:23:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:23:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:23:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:23:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:23:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:23:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:23:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:23:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:23:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:23:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:23:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:23:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:23:30,259 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:23:30,259 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:23:30,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:30 BoogieIcfgContainer [2020-10-23 20:23:30,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:23:30,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:23:30,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:23:30,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:23:30,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:23:29" (1/3) ... [2020-10-23 20:23:30,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f995ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:30, skipping insertion in model container [2020-10-23 20:23:30,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:23:29" (2/3) ... [2020-10-23 20:23:30,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f995ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:23:30, skipping insertion in model container [2020-10-23 20:23:30,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:23:30" (3/3) ... [2020-10-23 20:23:30,272 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-10-23 20:23:30,285 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:23:30,290 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:23:30,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:23:30,333 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:23:30,333 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:23:30,333 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:23:30,334 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:23:30,334 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:23:30,334 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:23:30,334 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:23:30,334 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:23:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-23 20:23:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-23 20:23:30,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:23:30,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:23:30,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:23:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:23:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2083980293, now seen corresponding path program 1 times [2020-10-23 20:23:30,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:23:30,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579202792] [2020-10-23 20:23:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:23:30,480 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:23:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:30,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:23:30,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:23:30,605 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:23:30,605 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:23:30,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:23:30,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:30 BoogieIcfgContainer [2020-10-23 20:23:30,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:23:30,626 INFO L168 Benchmark]: Toolchain (without parser) took 979.11 ms. Allocated memory is still 166.7 MB. Free memory was 143.2 MB in the beginning and 141.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:30,626 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 141.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:30,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.27 ms. Allocated memory is still 166.7 MB. Free memory was 142.5 MB in the beginning and 133.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:30,628 INFO L168 Benchmark]: Boogie Preprocessor took 40.16 ms. Allocated memory is still 166.7 MB. Free memory was 133.6 MB in the beginning and 132.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:30,629 INFO L168 Benchmark]: RCFGBuilder took 326.31 ms. Allocated memory is still 166.7 MB. Free memory was 132.2 MB in the beginning and 120.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:23:30,633 INFO L168 Benchmark]: TraceAbstraction took 358.54 ms. Allocated memory is still 166.7 MB. Free memory was 120.1 MB in the beginning and 141.9 MB in the end (delta: -21.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:23:30,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 141.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 240.27 ms. Allocated memory is still 166.7 MB. Free memory was 142.5 MB in the beginning and 133.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.16 ms. Allocated memory is still 166.7 MB. Free memory was 133.6 MB in the beginning and 132.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 326.31 ms. Allocated memory is still 166.7 MB. Free memory was 132.2 MB in the beginning and 120.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 358.54 ms. Allocated memory is still 166.7 MB. Free memory was 120.1 MB in the beginning and 141.9 MB in the end (delta: -21.8 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 to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 9. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] CALL reach_error() [L3] __assert_fail("0", "float-no-simp3.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=25occurred 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...