/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/float_double.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:30:34,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:30:34,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:30:34,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:30:34,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:30:34,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:30:34,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:30:34,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:30:34,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:30:34,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:30:34,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:30:34,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:30:34,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:30:34,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:30:34,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:30:34,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:30:34,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:30:34,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:30:34,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:30:34,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:30:34,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:30:34,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:30:34,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:30:34,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:30:34,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:30:34,965 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:30:34,983 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:30:34,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:30:34,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:30:34,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:30:34,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:30:34,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:30:34,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:30:34,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:30:34,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:30:34,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:30:34,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:30:34,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:30:34,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:30:34,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:30:34,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:30:34,992 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:30:34,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:30:34,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:30:34,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:30:34,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:30:34,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:30:34,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:30:34,993 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:30:35,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:30:35,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:30:35,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:30:35,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:30:35,404 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:30:35,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/float_double.c [2020-10-24 00:30:35,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4991cdb4d/57da7f3f6fd74a109f16ed1ec82f62b4/FLAG838775c50 [2020-10-24 00:30:36,043 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:30:36,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/float_double.c [2020-10-24 00:30:36,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4991cdb4d/57da7f3f6fd74a109f16ed1ec82f62b4/FLAG838775c50 [2020-10-24 00:30:36,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4991cdb4d/57da7f3f6fd74a109f16ed1ec82f62b4 [2020-10-24 00:30:36,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:30:36,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:30:36,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:30:36,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:30:36,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:30:36,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42590e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36, skipping insertion in model container [2020-10-24 00:30:36,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:30:36,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:30:36,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:30:36,712 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:30:36,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:30:36,744 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:30:36,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36 WrapperNode [2020-10-24 00:30:36,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:30:36,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:30:36,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:30:36,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:30:36,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (1/1) ... [2020-10-24 00:30:36,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:30:36,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:30:36,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:30:36,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:30:36,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (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 [2020-10-24 00:30:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:30:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:30:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:30:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 00:30:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:30:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:30:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:30:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:30:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:30:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 00:30:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:30:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:30:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:30:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:30:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:30:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:30:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:30:37,204 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:30:37,205 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 00:30:37,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:30:37 BoogieIcfgContainer [2020-10-24 00:30:37,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:30:37,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:30:37,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:30:37,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:30:37,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:30:36" (1/3) ... [2020-10-24 00:30:37,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba3118b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:30:37, skipping insertion in model container [2020-10-24 00:30:37,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:36" (2/3) ... [2020-10-24 00:30:37,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba3118b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:30:37, skipping insertion in model container [2020-10-24 00:30:37,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:30:37" (3/3) ... [2020-10-24 00:30:37,216 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-10-24 00:30:37,229 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:30:37,234 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:30:37,248 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:30:37,285 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:30:37,286 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:30:37,288 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:30:37,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:30:37,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:30:37,288 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:30:37,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:30:37,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:30:37,315 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-24 00:30:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 00:30:37,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:30:37,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:30:37,345 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:30:37,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:30:37,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1014190614, now seen corresponding path program 1 times [2020-10-24 00:30:37,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:30:37,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079710055] [2020-10-24 00:30:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:30:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:30:37,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:30:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:30:37,580 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:30:37,628 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:30:37,629 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:30:37,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:30:37,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:30:37 BoogieIcfgContainer [2020-10-24 00:30:37,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:30:37,680 INFO L168 Benchmark]: Toolchain (without parser) took 1243.28 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 125.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.8 MB. Max. memory is 8.0 GB. [2020-10-24 00:30:37,681 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:30:37,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.58 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:30:37,684 INFO L168 Benchmark]: Boogie Preprocessor took 34.80 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:30:37,685 INFO L168 Benchmark]: RCFGBuilder took 424.85 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 103.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:30:37,686 INFO L168 Benchmark]: TraceAbstraction took 468.87 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 125.7 MB in the end (delta: -22.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:30:37,690 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 151.0 MB. Free memory is still 126.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 301.58 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.80 ms. Allocated memory is still 151.0 MB. Free memory was 117.2 MB in the beginning and 115.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 424.85 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 103.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 468.87 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 125.7 MB in the end (delta: -22.6 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 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; VAL [x=53, y=53] [L12] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] CALL reach_error() [L3] __assert_fail("0", "float_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 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=30occurred 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, 19 NumberOfCodeBlocks, 19 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...