/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:29:06,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:29:06,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:29:06,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:29:06,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:29:06,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:29:06,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:29:06,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:29:06,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:29:06,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:29:06,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:29:06,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:29:06,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:29:06,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:29:06,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:29:06,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:29:06,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:29:06,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:29:06,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:29:06,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:29:06,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:29:06,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:29:06,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:29:06,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:29:06,594 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:29:06,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:29:06,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:29:06,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:29:06,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:29:06,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:29:06,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:29:06,596 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:29:06,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:29:06,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:29:06,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:29:06,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:29:06,597 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:29:06,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:29:06,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:29:06,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:29:06,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:29:06,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:29:06,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:29:06,599 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:29:06,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:29:06,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:29:07,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:29:07,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:29:07,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:29:07,012 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:29:07,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2021-02-22 01:29:07,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2159e88ae/3fe4744c9a6d47afae2026ec723e9f4b/FLAGf518c0fad [2021-02-22 01:29:07,767 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:29:07,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2021-02-22 01:29:07,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2159e88ae/3fe4744c9a6d47afae2026ec723e9f4b/FLAGf518c0fad [2021-02-22 01:29:08,142 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2159e88ae/3fe4744c9a6d47afae2026ec723e9f4b [2021-02-22 01:29:08,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:29:08,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:29:08,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:08,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:29:08,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:29:08,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56bfb98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08, skipping insertion in model container [2021-02-22 01:29:08,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:29:08,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:29:08,399 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[371,384] [2021-02-22 01:29:08,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[525,538] [2021-02-22 01:29:08,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:08,417 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:29:08,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[371,384] [2021-02-22 01:29:08,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[525,538] [2021-02-22 01:29:08,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:29:08,452 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:29:08,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08 WrapperNode [2021-02-22 01:29:08,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:29:08,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:29:08,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:29:08,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:29:08,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (1/1) ... [2021-02-22 01:29:08,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:29:08,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:29:08,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:29:08,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:29:08,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (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 [2021-02-22 01:29:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:29:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:29:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:29:08,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:29:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:29:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:29:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:29:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:29:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:29:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:29:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:29:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:29:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:29:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:29:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:29:08,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:29:08,944 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 01:29:08,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:08 BoogieIcfgContainer [2021-02-22 01:29:08,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:29:08,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:29:08,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:29:08,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:29:08,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:29:08" (1/3) ... [2021-02-22 01:29:08,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b97b6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:08, skipping insertion in model container [2021-02-22 01:29:08,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:29:08" (2/3) ... [2021-02-22 01:29:08,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b97b6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:29:08, skipping insertion in model container [2021-02-22 01:29:08,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:29:08" (3/3) ... [2021-02-22 01:29:08,956 INFO L111 eAbstractionObserver]: Analyzing ICFG float1.c [2021-02-22 01:29:08,964 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:29:08,969 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-02-22 01:29:08,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-02-22 01:29:09,040 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:29:09,040 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:29:09,041 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:29:09,041 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:29:09,041 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:29:09,041 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:29:09,041 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:29:09,042 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:29:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-02-22 01:29:09,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-22 01:29:09,083 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:29:09,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:29:09,084 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:29:09,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:29:09,094 INFO L82 PathProgramCache]: Analyzing trace with hash 889279634, now seen corresponding path program 1 times [2021-02-22 01:29:09,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:29:09,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910627952] [2021-02-22 01:29:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:29:09,197 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:29:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:09,312 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:29:09,372 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:29:09,416 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:29:09,416 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:29:09,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:29:09,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:29:09 BoogieIcfgContainer [2021-02-22 01:29:09,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:29:09,442 INFO L168 Benchmark]: Toolchain (without parser) took 1291.04 ms. Allocated memory is still 154.1 MB. Free memory was 130.7 MB in the beginning and 120.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:09,446 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 137.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:29:09,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.54 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 119.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:09,451 INFO L168 Benchmark]: Boogie Preprocessor took 35.19 ms. Allocated memory is still 154.1 MB. Free memory was 119.8 MB in the beginning and 118.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:09,452 INFO L168 Benchmark]: RCFGBuilder took 456.47 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 134.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:09,453 INFO L168 Benchmark]: TraceAbstraction took 488.95 ms. Allocated memory is still 154.1 MB. Free memory was 133.4 MB in the beginning and 120.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:29:09,465 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 154.1 MB. Free memory is still 137.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 292.54 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 119.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.19 ms. Allocated memory is still 154.1 MB. Free memory was 119.8 MB in the beginning and 118.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 456.47 ms. Allocated memory is still 154.1 MB. Free memory was 118.4 MB in the beginning and 134.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 488.95 ms. Allocated memory is still 154.1 MB. Free memory was 133.4 MB in the beginning and 120.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of to_real at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 9. Possible FailurePath: [L5] double x; [L6] int y; [L8] x=2 [L9] x-=0.6 [L10] y=x [L12] COND TRUE !(y==1) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 2 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=32occurred 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...