/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:18:22,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:18:22,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:18:22,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:18:22,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:18:22,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:18:22,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:18:22,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:18:22,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:18:22,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:18:22,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:18:22,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:18:22,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:18:22,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:18:22,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:18:22,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:18:22,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:18:22,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:18:22,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:18:22,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:18:22,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:18:22,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:18:22,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:18:22,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:18:22,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:18:22,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:18:22,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:18:22,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:18:22,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:18:22,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:18:22,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:18:22,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:18:22,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:18:22,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:18:22,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:18:22,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:18:22,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:18:22,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:18:22,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:18:22,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:18:22,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:18:22,376 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:18:22,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:18:22,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:18:22,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:18:22,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:18:22,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:18:22,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:18:22,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:18:22,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:18:22,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:18:22,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:18:22,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:18:22,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:18:22,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:18:22,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:18:22,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:18:22,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:18:22,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:18:22,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:18:22,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:18:22,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:18:22,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:18:22,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:18:22,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:18:22,381 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:18:22,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:18:22,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:18:22,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:18:22,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:18:22,796 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:18:22,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float1.c [2021-02-19 17:18:22,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3227d3766/dfb4853b695043989b5b3b45ee42f481/FLAGab127217b [2021-02-19 17:18:23,437 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:18:23,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c [2021-02-19 17:18:23,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3227d3766/dfb4853b695043989b5b3b45ee42f481/FLAGab127217b [2021-02-19 17:18:23,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3227d3766/dfb4853b695043989b5b3b45ee42f481 [2021-02-19 17:18:23,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:18:23,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:18:23,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:18:23,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:18:23,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:18:23,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:18:23" (1/1) ... [2021-02-19 17:18:23,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e10c680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:23, skipping insertion in model container [2021-02-19 17:18:23,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:18:23" (1/1) ... [2021-02-19 17:18:23,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:18:23,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:18:24,012 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[371,384] [2021-02-19 17:18:24,016 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[525,538] [2021-02-19 17:18:24,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:18:24,028 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:18:24,045 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[371,384] [2021-02-19 17:18:24,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float1.c[525,538] [2021-02-19 17:18:24,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:18:24,063 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:18:24,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24 WrapperNode [2021-02-19 17:18:24,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:18:24,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:18:24,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:18:24,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:18:24,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (1/1) ... [2021-02-19 17:18:24,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:18:24,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:18:24,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:18:24,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:18:24,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (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 [2021-02-19 17:18:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:18:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:18:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:18:24,205 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:18:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:18:24,205 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:18:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:18:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:18:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:18:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:18:24,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:18:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:18:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:18:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:18:24,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:18:24,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:18:24,436 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 17:18:24,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:18:24 BoogieIcfgContainer [2021-02-19 17:18:24,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:18:24,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:18:24,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:18:24,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:18:24,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:18:23" (1/3) ... [2021-02-19 17:18:24,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40d6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:18:24, skipping insertion in model container [2021-02-19 17:18:24,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:18:24" (2/3) ... [2021-02-19 17:18:24,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d40d6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:18:24, skipping insertion in model container [2021-02-19 17:18:24,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:18:24" (3/3) ... [2021-02-19 17:18:24,448 INFO L111 eAbstractionObserver]: Analyzing ICFG float1.c [2021-02-19 17:18:24,456 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:18:24,461 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-02-19 17:18:24,510 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-02-19 17:18:24,583 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:18:24,584 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:18:24,584 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:18:24,584 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:18:24,584 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:18:24,584 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:18:24,584 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:18:24,585 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:18:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-02-19 17:18:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-19 17:18:24,609 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:18:24,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:18:24,610 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:18:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:18:24,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1852354931, now seen corresponding path program 1 times [2021-02-19 17:18:24,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:18:24,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482912182] [2021-02-19 17:18:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:18:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:18:24,756 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:18:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:18:24,780 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:18:24,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:18:24,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:18:24,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:18:24,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:18:24 BoogieIcfgContainer [2021-02-19 17:18:24,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:18:24,838 INFO L168 Benchmark]: Toolchain (without parser) took 1035.32 ms. Allocated memory is still 154.1 MB. Free memory was 129.7 MB in the beginning and 126.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:18:24,840 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 100.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:18:24,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.61 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 119.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:18:24,842 INFO L168 Benchmark]: Boogie Preprocessor took 35.56 ms. Allocated memory is still 154.1 MB. Free memory was 119.3 MB in the beginning and 118.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:18:24,843 INFO L168 Benchmark]: RCFGBuilder took 336.46 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 106.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:18:24,844 INFO L168 Benchmark]: TraceAbstraction took 395.11 ms. Allocated memory is still 154.1 MB. Free memory was 105.8 MB in the beginning and 126.2 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:18:24,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 100.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 243.61 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 119.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.56 ms. Allocated memory is still 154.1 MB. Free memory was 119.3 MB in the beginning and 118.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 336.46 ms. Allocated memory is still 154.1 MB. Free memory was 117.8 MB in the beginning and 106.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 395.11 ms. Allocated memory is still 154.1 MB. Free memory was 105.8 MB in the beginning and 126.2 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 9, overapproximation of to_real at line 8. Possible FailurePath: [L5] double x; [L6] int y; [L8] x=2 [L9] x-=0.6 [L10] y=x [L12] COND TRUE !(y==1) VAL [y=52] [L12] reach_error() VAL [y=52] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 2 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=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...