/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/float-newlib/float_req_bl_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:47:59,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:47:59,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:47:59,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:47:59,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:47:59,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:47:59,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:47:59,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:47:59,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:47:59,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:47:59,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:47:59,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 15:47:59,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:47:59,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:47:59,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:47:59,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:47:59,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:47:59,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:47:59,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:47:59,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:47:59,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:47:59,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:47:59,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:47:59,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:47:59,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 15:47:59,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:47:59,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:47:59,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:47:59,438 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 [2021-02-21 15:47:59,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:47:59,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:47:59,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:47:59,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:47:59,474 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:47:59,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:47:59,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:47:59,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:47:59,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:47:59,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:47:59,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:47:59,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:47:59,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:47:59,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:47:59,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:47:59,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:47:59,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:47:59,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:47:59,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:47:59,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:47:59,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:47:59,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:47:59,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:47:59,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:47:59,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:47:59,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:47:59,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:47:59,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:47:59,480 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:47:59,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:47:59,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:47:59,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:47:59,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:47:59,852 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:47:59,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2021-02-21 15:47:59,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734fdea4/f4a08a1f729e43a9a50ea5d4992c6ad1/FLAGa83910d2b [2021-02-21 15:48:00,503 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:48:00,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2021-02-21 15:48:00,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734fdea4/f4a08a1f729e43a9a50ea5d4992c6ad1/FLAGa83910d2b [2021-02-21 15:48:00,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c734fdea4/f4a08a1f729e43a9a50ea5d4992c6ad1 [2021-02-21 15:48:00,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:48:00,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:48:00,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:48:00,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:48:00,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:48:00,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:48:00" (1/1) ... [2021-02-21 15:48:00,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f17ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:00, skipping insertion in model container [2021-02-21 15:48:00,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:48:00" (1/1) ... [2021-02-21 15:48:00,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:48:00,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:48:01,171 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c[1656,1669] [2021-02-21 15:48:01,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:48:01,182 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:48:01,207 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c[1656,1669] [2021-02-21 15:48:01,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:48:01,231 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:48:01,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01 WrapperNode [2021-02-21 15:48:01,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:48:01,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:48:01,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:48:01,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:48:01,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (1/1) ... [2021-02-21 15:48:01,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:48:01,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:48:01,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:48:01,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:48:01,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (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 [2021-02-21 15:48:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:48:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:48:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:48:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2021-02-21 15:48:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2021-02-21 15:48:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2021-02-21 15:48:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:48:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:48:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:48:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:48:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:48:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2021-02-21 15:48:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2021-02-21 15:48:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:48:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:48:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:48:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:48:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:48:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-21 15:48:01,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:48:01,826 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-21 15:48:01,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:48:01 BoogieIcfgContainer [2021-02-21 15:48:01,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:48:01,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:48:01,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:48:01,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:48:01,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:48:00" (1/3) ... [2021-02-21 15:48:01,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a47f99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:48:01, skipping insertion in model container [2021-02-21 15:48:01,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:01" (2/3) ... [2021-02-21 15:48:01,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a47f99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:48:01, skipping insertion in model container [2021-02-21 15:48:01,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:48:01" (3/3) ... [2021-02-21 15:48:01,841 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2021-02-21 15:48:01,848 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:48:01,853 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:48:01,872 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:48:01,918 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:48:01,918 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:48:01,918 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:48:01,918 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:48:01,918 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:48:01,919 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:48:01,919 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:48:01,919 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:48:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2021-02-21 15:48:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-02-21 15:48:01,949 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:48:01,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:48:01,951 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:48:01,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:48:01,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1103199198, now seen corresponding path program 1 times [2021-02-21 15:48:01,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:48:01,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49666601] [2021-02-21 15:48:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:48:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:48:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:48:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 15:48:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:48:02,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49666601] [2021-02-21 15:48:02,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:48:02,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 15:48:02,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401633412] [2021-02-21 15:48:02,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 15:48:02,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:48:02,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 15:48:02,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 15:48:02,347 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states. [2021-02-21 15:48:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:48:02,564 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2021-02-21 15:48:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 15:48:02,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2021-02-21 15:48:02,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:48:02,577 INFO L225 Difference]: With dead ends: 79 [2021-02-21 15:48:02,577 INFO L226 Difference]: Without dead ends: 40 [2021-02-21 15:48:02,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 15:48:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-02-21 15:48:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-02-21 15:48:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-02-21 15:48:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2021-02-21 15:48:02,668 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2021-02-21 15:48:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:48:02,668 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-02-21 15:48:02,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 15:48:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2021-02-21 15:48:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-21 15:48:02,672 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:48:02,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:48:02,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:48:02,673 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:48:02,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:48:02,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1189875525, now seen corresponding path program 1 times [2021-02-21 15:48:02,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:48:02,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836197893] [2021-02-21 15:48:02,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:48:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 15:48:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-21 15:48:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:48:02,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-21 15:48:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 15:48:02,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 15:48:02,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 15:48:02,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 15:48:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 15:48:02,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836197893] [2021-02-21 15:48:02,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 15:48:02,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 15:48:02,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333360435] [2021-02-21 15:48:02,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 15:48:02,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 15:48:02,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 15:48:02,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 15:48:02,930 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2021-02-21 15:48:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 15:48:03,177 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2021-02-21 15:48:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 15:48:03,178 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2021-02-21 15:48:03,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 15:48:03,201 INFO L225 Difference]: With dead ends: 59 [2021-02-21 15:48:03,201 INFO L226 Difference]: Without dead ends: 44 [2021-02-21 15:48:03,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-21 15:48:03,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-02-21 15:48:03,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-02-21 15:48:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-21 15:48:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2021-02-21 15:48:03,238 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2021-02-21 15:48:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 15:48:03,239 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2021-02-21 15:48:03,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 15:48:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2021-02-21 15:48:03,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 15:48:03,243 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:48:03,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:48:03,244 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 15:48:03,244 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:48:03,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:48:03,245 INFO L82 PathProgramCache]: Analyzing trace with hash -252822778, now seen corresponding path program 1 times [2021-02-21 15:48:03,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:48:03,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501205177] [2021-02-21 15:48:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:48:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:48:03,315 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:48:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:48:03,371 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:48:03,411 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:48:03,411 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:48:03,412 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 15:48:03,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:48:03 BoogieIcfgContainer [2021-02-21 15:48:03,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:48:03,450 INFO L168 Benchmark]: Toolchain (without parser) took 2552.50 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 131.0 MB in the beginning and 173.4 MB in the end (delta: -42.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:03,450 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 156.2 MB. Free memory is still 128.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:48:03,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.37 ms. Allocated memory is still 156.2 MB. Free memory was 129.7 MB in the beginning and 119.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:03,452 INFO L168 Benchmark]: Boogie Preprocessor took 84.82 ms. Allocated memory is still 156.2 MB. Free memory was 119.5 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:03,453 INFO L168 Benchmark]: RCFGBuilder took 505.30 ms. Allocated memory is still 156.2 MB. Free memory was 117.7 MB in the beginning and 135.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:03,454 INFO L168 Benchmark]: TraceAbstraction took 1616.83 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 134.5 MB in the beginning and 173.4 MB in the end (delta: -38.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:03,457 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 156.2 MB. Free memory is still 128.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 322.37 ms. Allocated memory is still 156.2 MB. Free memory was 129.7 MB in the beginning and 119.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.82 ms. Allocated memory is still 156.2 MB. Free memory was 119.5 MB in the beginning and 117.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 505.30 ms. Allocated memory is still 156.2 MB. Free memory was 117.7 MB in the beginning and 135.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1616.83 ms. Allocated memory was 156.2 MB in the beginning and 201.3 MB in the end (delta: 45.1 MB). Free memory was 134.5 MB in the beginning and 173.4 MB in the end (delta: -38.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: 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 71, overapproximation of someUnaryFLOAToperation at line 67. Possible FailurePath: [L66] float x = 0.0f; [L67] float y = -0.0f; VAL [x=0] [L68] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=4286578693] [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=0, w=4286578689, x=0] [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; VAL [\old(x)=0, \result=0, w=4286578689, x=0] [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=4286578693, __fpclassify_float(x)=0, x=0, y=4286578693] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=0, \old(y)=4286578693, \result=4286578693, x=0, y=4286578693] [L68] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578693, x=0, y=4286578693] [L68] float res = fmin_float(x, y); [L71] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4286578693, res == -0.0f && __signbit_float(res) == 1=0, x=0, y=4286578693] [L71] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L72] reach_error() VAL [res=4286578693, x=0, y=4286578693] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 16 SDslu, 148 SDs, 0 SdLazy, 113 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 3423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...