/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:07:57,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:07:57,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:07:57,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:07:57,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:07:57,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:07:57,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:07:57,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:07:57,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:07:57,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:07:58,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:07:58,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:07:58,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:07:58,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:07:58,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:07:58,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:07:58,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:07:58,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:07:58,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:07:58,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:07:58,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:07:58,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:07:58,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:07:58,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:07:58,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:07:58,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:07:58,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:07:58,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:07:58,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:07:58,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:07:58,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:07:58,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:07:58,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:07:58,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:07:58,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:07:58,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:07:58,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:07:58,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:07:58,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:07:58,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:07:58,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:07:58,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:07:58,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:07:58,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:07:58,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:07:58,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:07:58,129 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:07:58,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:07:58,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:07:58,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:07:58,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:07:58,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:07:58,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:07:58,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:07:58,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:07:58,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:07:58,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:07:58,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:07:58,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:07:58,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:07:58,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:07:58,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:07:58,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:07:58,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:07:58,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:07:58,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:07:58,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:07:58,567 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:07:58,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i [2020-12-23 06:07:58,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8e799dcd8/2c1e61f3f71b48c2ac6dac25d2f16084/FLAG9370fd9fd [2020-12-23 06:07:59,380 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:07:59,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i [2020-12-23 06:07:59,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8e799dcd8/2c1e61f3f71b48c2ac6dac25d2f16084/FLAG9370fd9fd [2020-12-23 06:07:59,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8e799dcd8/2c1e61f3f71b48c2ac6dac25d2f16084 [2020-12-23 06:07:59,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:07:59,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:07:59,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:07:59,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:07:59,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:07:59,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:59" (1/1) ... [2020-12-23 06:07:59,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54438d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:59, skipping insertion in model container [2020-12-23 06:07:59,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:59" (1/1) ... [2020-12-23 06:07:59,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:07:59,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 06:07:59,977 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i[807,820] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] [2020-12-23 06:07:59,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:08:00,006 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 06:08:00,022 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Float_div_bad.i[807,820] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~x1~0,] [2020-12-23 06:08:00,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:08:00,042 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:08:00,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00 WrapperNode [2020-12-23 06:08:00,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:08:00,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:08:00,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:08:00,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:08:00,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:08:00,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:08:00,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:08:00,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:08:00,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... [2020-12-23 06:08:00,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:08:00,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:08:00,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:08:00,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:08:00,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:08:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:08:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:08:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:08:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:08:00,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:08:00,548 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-23 06:08:00,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:08:00 BoogieIcfgContainer [2020-12-23 06:08:00,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:08:00,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:08:00,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:08:00,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:08:00,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:07:59" (1/3) ... [2020-12-23 06:08:00,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273ccebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:08:00, skipping insertion in model container [2020-12-23 06:08:00,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:08:00" (2/3) ... [2020-12-23 06:08:00,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273ccebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:08:00, skipping insertion in model container [2020-12-23 06:08:00,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:08:00" (3/3) ... [2020-12-23 06:08:00,564 INFO L111 eAbstractionObserver]: Analyzing ICFG Float_div_bad.i [2020-12-23 06:08:00,572 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:08:00,577 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:08:00,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:08:00,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:08:00,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:08:00,643 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:08:00,643 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:08:00,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:08:00,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:08:00,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:08:00,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:08:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-23 06:08:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 06:08:00,671 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:08:00,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 06:08:00,672 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:08:00,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:08:00,679 INFO L82 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2020-12-23 06:08:00,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:08:00,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861620882] [2020-12-23 06:08:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:08:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:08:00,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:08:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:08:00,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:08:00,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:08:00,921 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:08:00,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:08:00,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:08:00 BoogieIcfgContainer [2020-12-23 06:08:00,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:08:00,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:08:00,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:08:00,955 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:08:00,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:08:00" (3/4) ... [2020-12-23 06:08:00,967 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:08:00,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:08:00,971 INFO L168 Benchmark]: Toolchain (without parser) took 1216.73 ms. Allocated memory is still 167.8 MB. Free memory was 142.0 MB in the beginning and 106.9 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,974 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 167.8 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:08:00,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.37 ms. Allocated memory is still 167.8 MB. Free memory was 141.7 MB in the beginning and 132.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.25 ms. Allocated memory is still 167.8 MB. Free memory was 132.2 MB in the beginning and 130.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,979 INFO L168 Benchmark]: Boogie Preprocessor took 23.40 ms. Allocated memory is still 167.8 MB. Free memory was 130.9 MB in the beginning and 129.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,981 INFO L168 Benchmark]: RCFGBuilder took 445.78 ms. Allocated memory is still 167.8 MB. Free memory was 129.9 MB in the beginning and 119.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,983 INFO L168 Benchmark]: TraceAbstraction took 398.88 ms. Allocated memory is still 167.8 MB. Free memory was 118.8 MB in the beginning and 107.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:00,984 INFO L168 Benchmark]: Witness Printer took 12.72 ms. Allocated memory is still 167.8 MB. Free memory was 107.2 MB in the beginning and 106.9 MB in the end (delta: 288.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:08:01,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 167.8 MB. Free memory is still 140.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 286.37 ms. Allocated memory is still 167.8 MB. Free memory was 141.7 MB in the beginning and 132.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.25 ms. Allocated memory is still 167.8 MB. Free memory was 132.2 MB in the beginning and 130.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.40 ms. Allocated memory is still 167.8 MB. Free memory was 130.9 MB in the beginning and 129.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 445.78 ms. Allocated memory is still 167.8 MB. Free memory was 129.9 MB in the beginning and 119.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 398.88 ms. Allocated memory is still 167.8 MB. Free memory was 118.8 MB in the beginning and 107.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Witness Printer took 12.72 ms. Allocated memory is still 167.8 MB. Free memory was 107.2 MB in the beginning and 106.9 MB in the end (delta: 288.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L20] float x = 1.0f; [L21] float x1 = x/1.6f; [L23] COND FALSE !(x1 != x) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=11occurred 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, 6 NumberOfCodeBlocks, 6 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...