/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/floats-cbmc-regression/float-zero-sum1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:29:40,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:29:40,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:29:40,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:29:40,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:29:40,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:29:40,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:29:40,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:29:40,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:29:40,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:29:40,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:29:40,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:29:40,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:29:40,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:29:40,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:29:40,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:29:40,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:29:40,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:29:40,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:29:40,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:29:40,483 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 00:29:40,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:29:40,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:29:40,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:29:40,496 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:29:40,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:29:40,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:29:40,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:29:40,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:29:40,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:29:40,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:29:40,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:29:40,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:29:40,498 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:29:40,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:29:40,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:29:40,499 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:29:40,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:29:40,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:29:40,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:29:40,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:29:40,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:29:40,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:29:40,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:29:40,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:29:40,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:29:40,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:29:40,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:29:40,921 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:29:40,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-10-24 00:29:41,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff2c9a9/58cdc1c5bcce4f71841d6325bf3fd367/FLAG4cc10f6b3 [2020-10-24 00:29:41,588 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:29:41,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-zero-sum1.i [2020-10-24 00:29:41,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff2c9a9/58cdc1c5bcce4f71841d6325bf3fd367/FLAG4cc10f6b3 [2020-10-24 00:29:41,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78ff2c9a9/58cdc1c5bcce4f71841d6325bf3fd367 [2020-10-24 00:29:41,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:29:41,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:29:41,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:29:41,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:29:41,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:29:41,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:29:41" (1/1) ... [2020-10-24 00:29:41,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123fb9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:41, skipping insertion in model container [2020-10-24 00:29:41,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:29:41" (1/1) ... [2020-10-24 00:29:41,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:29:42,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:29:42,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:29:42,162 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:29:42,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:29:42,201 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:29:42,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42 WrapperNode [2020-10-24 00:29:42,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:29:42,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:29:42,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:29:42,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:29:42,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (1/1) ... [2020-10-24 00:29:42,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:29:42,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:29:42,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:29:42,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:29:42,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (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 00:29:42,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:29:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:29:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:29:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure f00 [2020-10-24 00:29:42,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:29:42,315 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:29:42,315 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:29:42,315 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure f00 [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:29:42,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:29:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:29:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:29:42,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:29:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:29:42,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:29:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:29:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:29:42,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:29:42,580 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 00:29:42,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:29:42 BoogieIcfgContainer [2020-10-24 00:29:42,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:29:42,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:29:42,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:29:42,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:29:42,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:29:41" (1/3) ... [2020-10-24 00:29:42,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4b1925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:29:42, skipping insertion in model container [2020-10-24 00:29:42,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:29:42" (2/3) ... [2020-10-24 00:29:42,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4b1925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:29:42, skipping insertion in model container [2020-10-24 00:29:42,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:29:42" (3/3) ... [2020-10-24 00:29:42,622 INFO L111 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2020-10-24 00:29:42,636 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:29:42,641 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:29:42,655 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:29:42,685 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:29:42,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:29:42,685 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:29:42,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:29:42,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:29:42,686 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:29:42,689 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:29:42,689 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:29:42,713 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-24 00:29:42,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-24 00:29:42,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:29:42,724 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] [2020-10-24 00:29:42,725 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:29:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:29:42,732 INFO L82 PathProgramCache]: Analyzing trace with hash 2086197297, now seen corresponding path program 1 times [2020-10-24 00:29:42,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:29:42,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914599633] [2020-10-24 00:29:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:29:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:29:42,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:29:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:29:42,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:29:43,027 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:29:43,028 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:29:43,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:29:43,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:29:43 BoogieIcfgContainer [2020-10-24 00:29:43,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:29:43,100 INFO L168 Benchmark]: Toolchain (without parser) took 1160.41 ms. Allocated memory is still 160.4 MB. Free memory was 136.6 MB in the beginning and 129.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:29:43,103 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:29:43,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.24 ms. Allocated memory is still 160.4 MB. Free memory was 135.8 MB in the beginning and 126.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:29:43,109 INFO L168 Benchmark]: Boogie Preprocessor took 35.70 ms. Allocated memory is still 160.4 MB. Free memory was 126.1 MB in the beginning and 124.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:29:43,110 INFO L168 Benchmark]: RCFGBuilder took 342.63 ms. Allocated memory is still 160.4 MB. Free memory was 124.5 MB in the beginning and 109.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:29:43,111 INFO L168 Benchmark]: TraceAbstraction took 512.69 ms. Allocated memory is still 160.4 MB. Free memory was 108.7 MB in the beginning and 129.5 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:29:43,117 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 160.4 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 254.24 ms. Allocated memory is still 160.4 MB. Free memory was 135.8 MB in the beginning and 126.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.70 ms. Allocated memory is still 160.4 MB. Free memory was 126.1 MB in the beginning and 124.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 342.63 ms. Allocated memory is still 160.4 MB. Free memory was 124.5 MB in the beginning and 109.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 512.69 ms. Allocated memory is still 160.4 MB. Free memory was 108.7 MB in the beginning and 129.5 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 122, overapproximation of someBinaryArithmeticFLOAToperation at line 111. Possible FailurePath: [L122] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) VAL [\old(b)=762388928] [L111] float sum = a + b; VAL [\old(a)=2147483652, \old(b)=762388928, a=2147483652, b=762388928] [L112] union mix m; VAL [\old(a)=2147483652, \old(b)=762388928, a=2147483652, b=762388928, m={3:0}] [L113] m.f = sum VAL [\old(a)=2147483652, \old(b)=762388928, a=2147483652, b=762388928, m={3:0}, sum=2147483656] [L114] EXPR m.i VAL [\old(a)=2147483652, \old(b)=762388928, a=2147483652, b=762388928, m={3:0}, m.i=2147483648, sum=2147483656] [L114] COND TRUE !(m.i != 0x80000000) VAL [\old(a)=2147483652, \old(b)=762388928, a=2147483652, b=762388928, m={3:0}, m.i=2147483648, sum=2147483656] [L114] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "float-zero-sum1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 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=41occurred 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, 23 NumberOfCodeBlocks, 23 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...