/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:15:31,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:15:31,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:15:31,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:15:31,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:15:31,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:15:31,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:15:31,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:15:31,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:15:31,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:15:31,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:15:31,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:15:31,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:15:31,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:15:31,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:15:31,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:15:31,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:15:31,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:15:31,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:15:31,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:15:31,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:15:31,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:15:31,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:15:31,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:15:31,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 13:15:31,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:15:31,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:15:31,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:15:31,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 13:15:31,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:15:31,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:15:31,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:15:31,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:15:31,226 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:15:31,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:15:31,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:15:31,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:15:31,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:15:31,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:15:31,228 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:15:31,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:15:31,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:15:31,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:15:31,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:15:31,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:15:31,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:15:31,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:15:31,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:15:31,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:15:31,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:15:31,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:15:31,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:15:31,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:15:31,230 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-21 13:15:31,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:15:31,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:15:31,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:15:31,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:15:31,522 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:15:31,522 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-08-21 13:15:31,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11a00b9d4/00a63bcd5f9d4d08b975041cf2c08cd9/FLAGaa4dca685 [2020-08-21 13:15:31,975 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:15:31,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp3.c [2020-08-21 13:15:31,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11a00b9d4/00a63bcd5f9d4d08b975041cf2c08cd9/FLAGaa4dca685 [2020-08-21 13:15:31,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/11a00b9d4/00a63bcd5f9d4d08b975041cf2c08cd9 [2020-08-21 13:15:32,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:15:32,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:15:32,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:15:32,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:15:32,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:15:32,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:15:31" (1/1) ... [2020-08-21 13:15:32,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522d3de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32, skipping insertion in model container [2020-08-21 13:15:32,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:15:31" (1/1) ... [2020-08-21 13:15:32,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:15:32,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:15:32,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:15:32,300 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:15:32,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:15:32,334 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:15:32,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32 WrapperNode [2020-08-21 13:15:32,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:15:32,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:15:32,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:15:32,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:15:32,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (1/1) ... [2020-08-21 13:15:32,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:15:32,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:15:32,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:15:32,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:15:32,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (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 [2020-08-21 13:15:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:15:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:15:32,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:15:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:15:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:15:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:15:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:15:32,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:15:32,737 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 13:15:32,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:15:32 BoogieIcfgContainer [2020-08-21 13:15:32,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:15:32,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:15:32,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:15:32,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:15:32,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:15:31" (1/3) ... [2020-08-21 13:15:32,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1143594e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:15:32, skipping insertion in model container [2020-08-21 13:15:32,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:15:32" (2/3) ... [2020-08-21 13:15:32,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1143594e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:15:32, skipping insertion in model container [2020-08-21 13:15:32,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:15:32" (3/3) ... [2020-08-21 13:15:32,755 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-08-21 13:15:32,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:15:32,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:15:32,789 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:15:32,817 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:15:32,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:15:32,818 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:15:32,818 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:15:32,819 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:15:32,820 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:15:32,820 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:15:32,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:15:32,841 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-08-21 13:15:32,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-08-21 13:15:32,847 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:15:32,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:15:32,850 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:15:32,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:15:32,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2020-08-21 13:15:32,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:15:32,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459013573] [2020-08-21 13:15:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:15:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 13:15:32,962 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 13:15:32,963 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 13:15:32,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:15:32,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:15:32 BoogieIcfgContainer [2020-08-21 13:15:32,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:15:32,982 INFO L168 Benchmark]: Toolchain (without parser) took 971.31 ms. Allocated memory was 138.9 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Free memory was 102.3 MB in the beginning and 164.8 MB in the end (delta: -62.6 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:15:32,984 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:15:32,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.44 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-21 13:15:32,986 INFO L168 Benchmark]: Boogie Preprocessor took 167.29 ms. Allocated memory was 138.9 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Free memory was 92.7 MB in the beginning and 186.1 MB in the end (delta: -93.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-21 13:15:32,987 INFO L168 Benchmark]: RCFGBuilder took 239.71 ms. Allocated memory is still 207.6 MB. Free memory was 186.1 MB in the beginning and 176.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:15:32,988 INFO L168 Benchmark]: TraceAbstraction took 233.16 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 164.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-08-21 13:15:32,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.44 ms. Allocated memory is still 138.9 MB. Free memory was 102.0 MB in the beginning and 92.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 167.29 ms. Allocated memory was 138.9 MB in the beginning and 207.6 MB in the end (delta: 68.7 MB). Free memory was 92.7 MB in the beginning and 186.1 MB in the end (delta: -93.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 239.71 ms. Allocated memory is still 207.6 MB. Free memory was 186.1 MB in the beginning and 176.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233.16 ms. Allocated memory is still 207.6 MB. Free memory was 175.6 MB in the beginning and 164.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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...