/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-no-simp7.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:34:24,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:34:24,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:34:24,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:34:24,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:34:24,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:34:24,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:34:24,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:34:24,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:34:24,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:34:24,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:34:24,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:34:24,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:34:24,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:34:24,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:34:24,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:34:24,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:34:24,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:34:24,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:34:24,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:34:24,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:34:24,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:34:24,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:34:24,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:34:24,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:34:24,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:34:24,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:34:24,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:34:24,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:34:24,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:34:24,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:34:24,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:34:24,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:34:24,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:34:24,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:34:24,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:34:24,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:34:24,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:34:24,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:34:24,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:34:24,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:34:24,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:34:24,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:34:24,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:34:24,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:34:24,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:34:24,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:34:24,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:34:24,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:34:24,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:34:24,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:34:24,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:34:24,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:34:24,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:34:24,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:34:24,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:34:24,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:34:24,353 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:34:24,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:34:24,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:34:24,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:34:24,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:34:24,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:34:24,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:34:24,354 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 21:34:24,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:34:24,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:34:24,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:34:24,836 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:34:24,836 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:34:24,837 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp7.c [2020-09-04 21:34:24,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00375598f/3322a4a986204e028cf25fce43f3016d/FLAGd39c851e9 [2020-09-04 21:34:25,439 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:34:25,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp7.c [2020-09-04 21:34:25,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00375598f/3322a4a986204e028cf25fce43f3016d/FLAGd39c851e9 [2020-09-04 21:34:25,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00375598f/3322a4a986204e028cf25fce43f3016d [2020-09-04 21:34:25,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:34:25,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:34:25,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:34:25,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:34:25,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:34:25,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:34:25" (1/1) ... [2020-09-04 21:34:25,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605628e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:25, skipping insertion in model container [2020-09-04 21:34:25,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:34:25" (1/1) ... [2020-09-04 21:34:25,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:34:25,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:34:26,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:34:26,053 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:34:26,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:34:26,092 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:34:26,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26 WrapperNode [2020-09-04 21:34:26,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:34:26,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:34:26,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:34:26,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:34:26,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... [2020-09-04 21:34:26,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:34:26,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:34:26,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:34:26,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:34:26,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:34:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:34:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:34:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:34:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:34:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:34:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:34:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:34:26,453 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:34:26,453 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 21:34:26,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:34:26 BoogieIcfgContainer [2020-09-04 21:34:26,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:34:26,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:34:26,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:34:26,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:34:26,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:34:25" (1/3) ... [2020-09-04 21:34:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a75b702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:34:26, skipping insertion in model container [2020-09-04 21:34:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:34:26" (2/3) ... [2020-09-04 21:34:26,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a75b702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:34:26, skipping insertion in model container [2020-09-04 21:34:26,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:34:26" (3/3) ... [2020-09-04 21:34:26,467 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-09-04 21:34:26,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:34:26,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:34:26,503 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:34:26,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:34:26,531 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:34:26,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:34:26,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:34:26,532 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:34:26,532 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:34:26,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:34:26,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:34:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-09-04 21:34:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-04 21:34:26,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:34:26,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:34:26,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:34:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:34:26,565 INFO L82 PathProgramCache]: Analyzing trace with hash 49487314, now seen corresponding path program 1 times [2020-09-04 21:34:26,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:34:26,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888222932] [2020-09-04 21:34:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:34:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:34:26,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:34:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:34:26,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:34:26,696 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:34:26,697 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:34:26,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:34:26,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:34:26 BoogieIcfgContainer [2020-09-04 21:34:26,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:34:26,726 INFO L168 Benchmark]: Toolchain (without parser) took 929.41 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 105.2 MB in the beginning and 159.2 MB in the end (delta: -54.0 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,727 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 147.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.04 ms. Allocated memory is still 147.8 MB. Free memory was 105.0 MB in the beginning and 94.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,729 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 147.8 MB. Free memory was 94.5 MB in the beginning and 93.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,730 INFO L168 Benchmark]: RCFGBuilder took 333.01 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 172.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,731 INFO L168 Benchmark]: TraceAbstraction took 264.16 ms. Allocated memory is still 203.4 MB. Free memory was 171.7 MB in the beginning and 159.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:34:26,735 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 147.8 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.04 ms. Allocated memory is still 147.8 MB. Free memory was 105.0 MB in the beginning and 94.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 147.8 MB. Free memory was 94.5 MB in the beginning and 93.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 333.01 ms. Allocated memory was 147.8 MB in the beginning and 203.4 MB in the end (delta: 55.6 MB). Free memory was 93.1 MB in the beginning and 172.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 264.16 ms. Allocated memory is still 203.4 MB. Free memory was 171.7 MB in the beginning and 159.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someUnaryFLOAToperation at line 6, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] [L5] float g = -0x1.3c9014p-50f; VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] [L6] float target = -0x1p-149f; VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] [L8] float result = f * g; VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !(result == target) VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] [L10] __VERIFIER_error() VAL [\old(argc)=4, argc=4, argv={3:2}, argv={3:2}, f=13567505/21267647932558653966460912964485513216] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=18occurred 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, 12 NumberOfCodeBlocks, 12 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...