/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-cbmc-regression/float3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:00:33,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:00:33,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:00:33,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:00:33,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:00:33,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:00:33,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:00:33,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:00:33,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:00:33,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:00:33,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:00:33,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:00:33,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:00:33,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:00:33,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:00:33,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:00:33,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:00:33,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:00:33,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:00:33,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:00:33,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:00:33,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:00:33,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:00:33,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:00:33,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:00:33,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:00:33,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:00:33,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:00:33,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:00:33,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:00:33,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:00:33,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:00:33,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:00:33,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:00:33,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:00:33,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:00:33,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:00:33,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:00:33,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:00:33,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:00:33,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:00:33,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:00:33,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:00:33,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:00:33,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:00:33,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:00:33,730 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:00:33,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:00:33,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:00:33,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:00:33,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:00:33,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:00:33,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:00:33,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:00:33,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:00:33,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:00:33,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:00:33,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:00:33,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:00:33,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:00:33,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:00:33,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:00:33,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:00:33,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:00:33,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:00:33,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:00:33,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:00:33,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:00:34,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:00:34,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:00:34,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:00:34,144 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:00:34,148 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:00:34,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-01-06 16:00:34,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/22f6e3cf2/f9189a90947344c1bcc1d312afbc2136/FLAG98a8040e2 [2021-01-06 16:00:34,973 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:00:34,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-01-06 16:00:34,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/22f6e3cf2/f9189a90947344c1bcc1d312afbc2136/FLAG98a8040e2 [2021-01-06 16:00:35,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/22f6e3cf2/f9189a90947344c1bcc1d312afbc2136 [2021-01-06 16:00:35,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:00:35,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:00:35,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:00:35,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:00:35,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:00:35,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211316ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35, skipping insertion in model container [2021-01-06 16:00:35,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:00:35,368 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~d~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 16:00:35,541 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-cbmc-regression/float3.c[465,478] [2021-01-06 16:00:35,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:00:35,556 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~d~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 16:00:35,574 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-cbmc-regression/float3.c[465,478] [2021-01-06 16:00:35,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:00:35,592 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:00:35,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35 WrapperNode [2021-01-06 16:00:35,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:00:35,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:00:35,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:00:35,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:00:35,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:00:35,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:00:35,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:00:35,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:00:35,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (1/1) ... [2021-01-06 16:00:35,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:00:35,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:00:35,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:00:35,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:00:35,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (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 [2021-01-06 16:00:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:00:35,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:00:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:00:35,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:00:35,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:00:35,983 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-01-06 16:00:35,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:35 BoogieIcfgContainer [2021-01-06 16:00:35,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:00:35,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:00:35,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:00:35,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:00:35,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:00:35" (1/3) ... [2021-01-06 16:00:35,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462cb7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:00:35, skipping insertion in model container [2021-01-06 16:00:35,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:35" (2/3) ... [2021-01-06 16:00:35,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462cb7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:00:35, skipping insertion in model container [2021-01-06 16:00:35,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:35" (3/3) ... [2021-01-06 16:00:35,996 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2021-01-06 16:00:36,004 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:00:36,009 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:00:36,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:00:36,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:00:36,063 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:00:36,063 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:00:36,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:00:36,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:00:36,063 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:00:36,064 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:00:36,064 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:00:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-01-06 16:00:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 16:00:36,088 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:00:36,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:00:36,089 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:00:36,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:00:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2021-01-06 16:00:36,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:00:36,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471847984] [2021-01-06 16:00:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:00:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:00:36,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:00:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:00:36,368 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:00:36,393 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:00:36,394 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:00:36,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:00:36,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:00:36 BoogieIcfgContainer [2021-01-06 16:00:36,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:00:36,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:00:36,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:00:36,427 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:00:36,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:35" (3/4) ... [2021-01-06 16:00:36,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:00:36,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:00:36,436 INFO L168 Benchmark]: Toolchain (without parser) took 1102.47 ms. Allocated memory is still 157.3 MB. Free memory was 132.4 MB in the beginning and 135.1 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:00:36,437 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 157.3 MB. Free memory was 128.2 MB in the beginning and 128.1 MB in the end (delta: 101.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:00:36,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.25 ms. Allocated memory is still 157.3 MB. Free memory was 132.2 MB in the beginning and 122.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:36,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.56 ms. Allocated memory is still 157.3 MB. Free memory was 122.8 MB in the beginning and 121.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:36,440 INFO L168 Benchmark]: Boogie Preprocessor took 22.09 ms. Allocated memory is still 157.3 MB. Free memory was 121.4 MB in the beginning and 120.5 MB in the end (delta: 940.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:36,441 INFO L168 Benchmark]: RCFGBuilder took 328.98 ms. Allocated memory is still 157.3 MB. Free memory was 120.5 MB in the beginning and 110.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:36,442 INFO L168 Benchmark]: TraceAbstraction took 438.36 ms. Allocated memory is still 157.3 MB. Free memory was 109.6 MB in the beginning and 135.6 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:00:36,443 INFO L168 Benchmark]: Witness Printer took 6.17 ms. Allocated memory is still 157.3 MB. Free memory was 135.6 MB in the beginning and 135.1 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:36,448 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 157.3 MB. Free memory was 128.2 MB in the beginning and 128.1 MB in the end (delta: 101.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 259.25 ms. Allocated memory is still 157.3 MB. Free memory was 132.2 MB in the beginning and 122.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.56 ms. Allocated memory is still 157.3 MB. Free memory was 122.8 MB in the beginning and 121.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.09 ms. Allocated memory is still 157.3 MB. Free memory was 121.4 MB in the beginning and 120.5 MB in the end (delta: 940.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 328.98 ms. Allocated memory is still 157.3 MB. Free memory was 120.5 MB in the beginning and 110.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 438.36 ms. Allocated memory is still 157.3 MB. Free memory was 109.6 MB in the beginning and 135.6 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 6.17 ms. Allocated memory is still 157.3 MB. Free memory was 135.6 MB in the beginning and 135.1 MB in the end (delta: 526.3 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: 26]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L6] double d = 0.0; VAL [d=0] [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 VAL [d=0] [L10] d = 1.0 VAL [d=1] [L22] d += (x == 2) [L24] d += (x > 3) [L26] COND TRUE !(d == 2.0) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 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=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, 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...