/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:21:45,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:21:45,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:21:45,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:21:45,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:21:45,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:21:45,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:21:46,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:21:46,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:21:46,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:21:46,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:21:46,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:21:46,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:21:46,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:21:46,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:21:46,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:21:46,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:21:46,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:21:46,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:21:46,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:21:46,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:21:46,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:21:46,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:21:46,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:21:46,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 15:21:46,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 15:21:46,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 15:21:46,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 15:21:46,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 15:21:46,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 15:21:46,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 15:21:46,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 15:21:46,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 15:21:46,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 15:21:46,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 15:21:46,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 15:21:46,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 15:21:46,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 15:21:46,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:21:46,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:21:46,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:21:46,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 15:21:46,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:21:46,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:21:46,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:21:46,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:21:46,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:21:46,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:21:46,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:21:46,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:21:46,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:21:46,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:21:46,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:21:46,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:21:46,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:21:46,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:21:46,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:21:46,043 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:21:46,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:21:46,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:21:46,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:21:46,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:21:46,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:21:46,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:21:46,044 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 [2020-07-07 15:21:46,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:21:46,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:21:46,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:21:46,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:21:46,318 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:21:46,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-07 15:21:46,387 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7264c36b8/e07f31044b1c49c0b4215440edce79ad/FLAG611686deb [2020-07-07 15:21:46,882 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:21:46,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-07 15:21:46,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7264c36b8/e07f31044b1c49c0b4215440edce79ad/FLAG611686deb [2020-07-07 15:21:47,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7264c36b8/e07f31044b1c49c0b4215440edce79ad [2020-07-07 15:21:47,280 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:21:47,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:21:47,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:47,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:21:47,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:21:47,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f449d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47, skipping insertion in model container [2020-07-07 15:21:47,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:21:47,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:21:47,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:47,504 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:21:47,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:21:47,543 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:21:47,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47 WrapperNode [2020-07-07 15:21:47,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:21:47,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:21:47,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:21:47,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:21:47,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (1/1) ... [2020-07-07 15:21:47,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:21:47,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:21:47,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:21:47,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:21:47,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (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 [2020-07-07 15:21:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:21:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:21:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2020-07-07 15:21:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2020-07-07 15:21:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-07 15:21:47,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:21:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:21:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2020-07-07 15:21:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2020-07-07 15:21:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-07 15:21:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:21:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:21:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:21:47,892 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:21:47,892 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 15:21:47,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:47 BoogieIcfgContainer [2020-07-07 15:21:47,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:21:47,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:21:47,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:21:47,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:21:47,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:21:47" (1/3) ... [2020-07-07 15:21:47,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7394c7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:47, skipping insertion in model container [2020-07-07 15:21:47,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:21:47" (2/3) ... [2020-07-07 15:21:47,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7394c7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:21:47, skipping insertion in model container [2020-07-07 15:21:47,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:21:47" (3/3) ... [2020-07-07 15:21:47,904 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2020-07-07 15:21:47,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:21:47,920 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-07 15:21:47,930 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-07 15:21:47,952 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:21:47,952 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:21:47,952 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:21:47,952 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:21:47,952 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:21:47,953 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:21:47,953 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:21:47,953 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:21:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-07 15:21:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-07 15:21:47,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:21:47,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 15:21:47,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:21:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:21:47,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1968128724, now seen corresponding path program 1 times [2020-07-07 15:21:47,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:21:47,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11194941] [2020-07-07 15:21:47,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:21:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:21:48,048 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:21:48,048 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:21:48,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:21:48 BoogieIcfgContainer [2020-07-07 15:21:48,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:21:48,090 INFO L168 Benchmark]: Toolchain (without parser) took 806.30 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 156.8 MB in the end (delta: -55.3 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,105 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.54 ms. Allocated memory is still 144.2 MB. Free memory was 101.2 MB in the beginning and 89.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,111 INFO L168 Benchmark]: Boogie Preprocessor took 122.70 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 89.5 MB in the beginning and 180.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,115 INFO L168 Benchmark]: RCFGBuilder took 228.30 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 167.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,117 INFO L168 Benchmark]: TraceAbstraction took 188.90 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 156.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-07 15:21:48,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.54 ms. Allocated memory is still 144.2 MB. Free memory was 101.2 MB in the beginning and 89.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.70 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 89.5 MB in the beginning and 180.1 MB in the end (delta: -90.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 228.30 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 167.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188.90 ms. Allocated memory is still 201.3 MB. Free memory was 167.5 MB in the beginning and 156.8 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: 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; VAL [f1=1/2] [L19] float f2=0x1.fffffep-126f; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [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, 34 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.0s, 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=34occurred 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, 10 NumberOfCodeBlocks, 10 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...