/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:44:31,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:44:31,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:44:31,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:44:31,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:44:31,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:44:31,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:44:31,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:44:31,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:44:31,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:44:31,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:44:31,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:44:31,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:44:31,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:44:31,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:44:31,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:44:31,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:44:31,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:44:31,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:44:31,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:44:31,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:44:31,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:44:31,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:44:31,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:44:31,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 10:44:31,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:44:31,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:44:31,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:44:31,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:44:31,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:44:31,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:44:31,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:44:31,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:44:31,908 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:44:31,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:44:31,909 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:44:31,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:44:31,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:44:31,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:44:31,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:44:31,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:44:31,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:44:31,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:44:31,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:44:31,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:44:31,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:44:31,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:44:31,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:44:31,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:44:31,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:44:31,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:44:31,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:44:31,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:44:31,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:44:31,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:44:31,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:31,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:44:31,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:44:31,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:44:32,232 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:44:32,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:44:32,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:44:32,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:44:32,263 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:44:32,264 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-20 10:44:32,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8160ea7/f7cdcd3cc989452e84321072b5889454/FLAG8ec2b0d16 [2020-07-20 10:44:32,738 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:44:32,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-20 10:44:32,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8160ea7/f7cdcd3cc989452e84321072b5889454/FLAG8ec2b0d16 [2020-07-20 10:44:33,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8160ea7/f7cdcd3cc989452e84321072b5889454 [2020-07-20 10:44:33,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:44:33,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:44:33,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:33,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:44:33,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:44:33,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c64c031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33, skipping insertion in model container [2020-07-20 10:44:33,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:44:33,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:44:33,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:33,433 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:44:33,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:44:33,470 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:44:33,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33 WrapperNode [2020-07-20 10:44:33,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:44:33,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:44:33,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:44:33,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:44:33,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (1/1) ... [2020-07-20 10:44:33,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:44:33,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:44:33,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:44:33,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:44:33,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (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 [2020-07-20 10:44:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:44:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:44:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2020-07-20 10:44:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2020-07-20 10:44:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-20 10:44:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:44:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:44:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2020-07-20 10:44:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2020-07-20 10:44:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-20 10:44:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:44:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:44:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:44:33,817 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:44:33,817 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 10:44:33,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:33 BoogieIcfgContainer [2020-07-20 10:44:33,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:44:33,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:44:33,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:44:33,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:44:33,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:44:33" (1/3) ... [2020-07-20 10:44:33,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85afa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:33, skipping insertion in model container [2020-07-20 10:44:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:33" (2/3) ... [2020-07-20 10:44:33,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85afa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:33, skipping insertion in model container [2020-07-20 10:44:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:33" (3/3) ... [2020-07-20 10:44:33,831 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2020-07-20 10:44:33,842 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:44:33,849 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-20 10:44:33,863 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-20 10:44:33,886 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:44:33,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:44:33,887 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:44:33,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:44:33,887 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:44:33,887 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:44:33,887 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:44:33,887 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:44:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-20 10:44:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-20 10:44:33,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:44:33,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 10:44:33,910 INFO L427 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:44:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:44:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2020-07-20 10:44:33,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:44:33,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172505013] [2020-07-20 10:44:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:33,970 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:44:33,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:44:33,999 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:44:34,000 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:44:34,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:44:34,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:44:34 BoogieIcfgContainer [2020-07-20 10:44:34,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:44:34,232 INFO L168 Benchmark]: Toolchain (without parser) took 1062.84 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.3 MB in the beginning and 154.1 MB in the end (delta: -50.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:34,233 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 10:44:34,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.82 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:34,235 INFO L168 Benchmark]: Boogie Preprocessor took 107.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 180.4 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:34,236 INFO L168 Benchmark]: RCFGBuilder took 242.20 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 167.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:34,237 INFO L168 Benchmark]: TraceAbstraction took 406.42 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 154.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-20 10:44:34,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 298.82 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.47 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.5 MB in the beginning and 180.4 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.20 ms. Allocated memory is still 201.9 MB. Free memory was 180.4 MB in the beginning and 167.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 406.42 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 154.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 23]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L47] CALL multiply() [L18] float f1=0x1.000000p-1f; [L19] float f2=0x1.fffffep-126f; [L21] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L23] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L23] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 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=29occurred 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, 8 NumberOfCodeBlocks, 8 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...