/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:33:04,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:33:04,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:33:04,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:33:04,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:33:04,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:33:04,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:33:04,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:33:04,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:33:04,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:33:04,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:33:04,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:33:04,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:33:04,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:33:04,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:33:04,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:33:04,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:33:04,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:33:04,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:33:04,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:33:04,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:33:04,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:33:04,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:33:04,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:33:04,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:33:04,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:33:04,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:33:04,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:33:04,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:33:04,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:33:04,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:33:04,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:33:04,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:33:04,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:33:04,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:33:04,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:33:04,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:33:04,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:33:04,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:33:04,433 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:33:04,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:33:04,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:33:04,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:33:04,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:33:04,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:33:04,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:33:04,434 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:33:04,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:33:04,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:33:04,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:33:04,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:33:04,863 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:33:04,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-10-24 00:33:04,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f361a47/fe8669c6f2234adaaef4b2655ee9e35a/FLAG0e839e3a9 [2020-10-24 00:33:05,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:33:05,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1250.c [2020-10-24 00:33:05,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f361a47/fe8669c6f2234adaaef4b2655ee9e35a/FLAG0e839e3a9 [2020-10-24 00:33:05,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7f361a47/fe8669c6f2234adaaef4b2655ee9e35a [2020-10-24 00:33:05,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:33:05,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:33:05,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:33:05,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:33:05,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:33:05,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:05" (1/1) ... [2020-10-24 00:33:05,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7a95fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:05, skipping insertion in model container [2020-10-24 00:33:05,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:05" (1/1) ... [2020-10-24 00:33:05,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:33:05,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:33:06,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:33:06,205 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:33:06,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:33:06,293 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:33:06,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06 WrapperNode [2020-10-24 00:33:06,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:33:06,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:33:06,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:33:06,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:33:06,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... [2020-10-24 00:33:06,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:33:06,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:33:06,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:33:06,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:33:06,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:33:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:33:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:33:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:33:06,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-24 00:33:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-24 00:33:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-10-24 00:33:06,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:33:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:33:06,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:33:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:33:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:33:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-24 00:33:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-24 00:33:06,456 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:33:06,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:33:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:33:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:33:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:33:06,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:33:07,066 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:33:07,066 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-24 00:33:07,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:07 BoogieIcfgContainer [2020-10-24 00:33:07,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:33:07,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:33:07,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:33:07,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:33:07,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:33:05" (1/3) ... [2020-10-24 00:33:07,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bacb23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:07, skipping insertion in model container [2020-10-24 00:33:07,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:06" (2/3) ... [2020-10-24 00:33:07,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bacb23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:07, skipping insertion in model container [2020-10-24 00:33:07,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:07" (3/3) ... [2020-10-24 00:33:07,077 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2020-10-24 00:33:07,089 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:33:07,094 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:33:07,106 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:33:07,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:33:07,131 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:33:07,131 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:33:07,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:33:07,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:33:07,132 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:33:07,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:33:07,132 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:33:07,150 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-10-24 00:33:07,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-24 00:33:07,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:07,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:33:07,164 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:07,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1511873638, now seen corresponding path program 1 times [2020-10-24 00:33:07,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:07,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404474096] [2020-10-24 00:33:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:07,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:33:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:33:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:33:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:07,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-24 00:33:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:07,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:33:07,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404474096] [2020-10-24 00:33:07,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:33:07,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:33:07,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029490917] [2020-10-24 00:33:07,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:33:07,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:33:07,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:33:07,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:33:07,553 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-10-24 00:33:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:33:07,991 INFO L93 Difference]: Finished difference Result 153 states and 175 transitions. [2020-10-24 00:33:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:33:07,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-24 00:33:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:33:08,027 INFO L225 Difference]: With dead ends: 153 [2020-10-24 00:33:08,027 INFO L226 Difference]: Without dead ends: 78 [2020-10-24 00:33:08,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:33:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-24 00:33:08,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-24 00:33:08,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-24 00:33:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-10-24 00:33:08,097 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 44 [2020-10-24 00:33:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:33:08,097 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-10-24 00:33:08,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:33:08,098 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-10-24 00:33:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-24 00:33:08,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:08,102 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, 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, 1, 1, 1, 1, 1, 1] [2020-10-24 00:33:08,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:33:08,102 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:08,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1366811728, now seen corresponding path program 1 times [2020-10-24 00:33:08,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:08,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856652043] [2020-10-24 00:33:08,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:33:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:33:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:33:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-24 00:33:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:33:08,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856652043] [2020-10-24 00:33:08,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:33:08,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:33:08,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64099664] [2020-10-24 00:33:08,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:33:08,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:33:08,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:33:08,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:33:08,412 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 6 states. [2020-10-24 00:33:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:33:08,814 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2020-10-24 00:33:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:33:08,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-24 00:33:08,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:33:08,819 INFO L225 Difference]: With dead ends: 100 [2020-10-24 00:33:08,819 INFO L226 Difference]: Without dead ends: 83 [2020-10-24 00:33:08,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:33:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-24 00:33:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-10-24 00:33:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-24 00:33:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-24 00:33:08,839 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 58 [2020-10-24 00:33:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:33:08,839 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-24 00:33:08,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:33:08,840 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-24 00:33:08,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-24 00:33:08,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:08,842 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:33:08,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:33:08,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1266244320, now seen corresponding path program 1 times [2020-10-24 00:33:08,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:08,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702724628] [2020-10-24 00:33:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:33:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:08,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-24 00:33:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:33:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-24 00:33:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:33:09,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702724628] [2020-10-24 00:33:09,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:33:09,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:33:09,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126276624] [2020-10-24 00:33:09,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:33:09,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:33:09,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:33:09,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:33:09,059 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2020-10-24 00:33:09,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:33:09,392 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2020-10-24 00:33:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:33:09,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-10-24 00:33:09,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:33:09,395 INFO L225 Difference]: With dead ends: 104 [2020-10-24 00:33:09,395 INFO L226 Difference]: Without dead ends: 87 [2020-10-24 00:33:09,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 00:33:09,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-24 00:33:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2020-10-24 00:33:09,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-24 00:33:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2020-10-24 00:33:09,410 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 61 [2020-10-24 00:33:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:33:09,410 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2020-10-24 00:33:09,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:33:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2020-10-24 00:33:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-24 00:33:09,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:09,413 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 00:33:09,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:33:09,413 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:09,414 INFO L82 PathProgramCache]: Analyzing trace with hash -624687776, now seen corresponding path program 1 times [2020-10-24 00:33:09,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:09,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [914089070] [2020-10-24 00:33:09,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:33:09,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:33:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:33:09,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:33:09,554 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:33:09,554 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:33:09,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:33:09,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:33:09 BoogieIcfgContainer [2020-10-24 00:33:09,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:33:09,633 INFO L168 Benchmark]: Toolchain (without parser) took 3679.01 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 137.4 MB in the beginning and 151.0 MB in the end (delta: -13.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:09,633 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 161.5 MB. Free memory is still 136.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:33:09,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.62 ms. Allocated memory is still 161.5 MB. Free memory was 136.9 MB in the beginning and 126.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:09,637 INFO L168 Benchmark]: Boogie Preprocessor took 73.55 ms. Allocated memory is still 161.5 MB. Free memory was 126.3 MB in the beginning and 124.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:09,638 INFO L168 Benchmark]: RCFGBuilder took 698.89 ms. Allocated memory is still 161.5 MB. Free memory was 124.6 MB in the beginning and 137.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:09,639 INFO L168 Benchmark]: TraceAbstraction took 2556.78 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 136.6 MB in the beginning and 151.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:09,645 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 161.5 MB. Free memory is still 136.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 337.62 ms. Allocated memory is still 161.5 MB. Free memory was 136.9 MB in the beginning and 126.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 73.55 ms. Allocated memory is still 161.5 MB. Free memory was 126.3 MB in the beginning and 124.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 698.89 ms. Allocated memory is still 161.5 MB. Free memory was 124.6 MB in the beginning and 137.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2556.78 ms. Allocated memory was 161.5 MB in the beginning and 194.0 MB in the end (delta: 32.5 MB). Free memory was 136.6 MB in the beginning and 151.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 70. Possible FailurePath: [L69] double x = 0.0 / 0.0; [L70] double y = 0.0 / 0.0; [L71] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967306, \old(y)=4294967305] [L57] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967306] [L29] __uint32_t msw, lsw; VAL [\old(x)=4294967306, x=4294967306] [L32] ieee_double_shape_type ew_u; VAL [\old(x)=4294967306, ew_u={3:0}, x=4294967306] [L33] ew_u.value = (x) VAL [\old(x)=4294967306, ew_u={3:0}, x=4294967306] [L34] EXPR ew_u.parts.msw VAL [\old(x)=4294967306, ew_u={3:0}, ew_u.parts.msw=4293918721, x=4294967306] [L34] (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=4294967309, \old(x)=4294967306, ew_u={3:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967306] [L35] EXPR ew_u.parts.lsw VAL [\old(x)=4294967306, ew_u={3:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967306] [L35] (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=4294967301, \old(x)=4294967306, ew_u={3:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967306] [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967306, lsw=4294967297, msw=4293918721, x=4294967306] [L52] return 0; VAL [\old(x)=4294967306, \result=0, lsw=4294967297, msw=4293918721, x=4294967306] [L57] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967306, \old(y)=4294967305, __fpclassify_double(x)=0, x=4294967306, y=4294967305] [L57] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967306, \old(y)=4294967305, __fpclassify_double(x)=0, x=4294967306, y=4294967305] [L58] return y; VAL [\old(x)=4294967306, \old(y)=4294967305, \result=4294967305, x=4294967306, y=4294967305] [L71] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967305, x=4294967306, y=4294967305] [L71] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967305, res=4294967305, x=4294967306, y=4294967305] [L73] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967305] [L18] return x != x; VAL [\old(x)=4294967305, \result=0, x=4294967305] [L73] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4294967305, x=4294967306, y=4294967305] [L73] COND TRUE !isnan_double(res) VAL [isnan_double(res)=0, res=4294967305, x=4294967306, y=4294967305] [L74] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1250.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 257 SDtfs, 71 SDslu, 433 SDs, 0 SdLazy, 344 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 18274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...