/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_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:32:55,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:32:55,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:32:55,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:32:55,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:32:55,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:32:55,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:32:55,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:32:55,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:32:55,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:32:55,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:32:55,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:32:55,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:32:55,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:32:55,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:32:55,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:32:55,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:32:55,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 00:32:55,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 00:32:55,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 00:32:55,975 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 00:32:55,994 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:32:55,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:32:55,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:32:55,999 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:32:55,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:32:55,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:32:55,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:32:55,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:32:56,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:32:56,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:32:56,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:32:56,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:32:56,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:32:56,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:32:56,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:32:56,002 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:32:56,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:32:56,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:32:56,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:32:56,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:32:56,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:32:56,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:32:56,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:32:56,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:32:56,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:32:56,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:32:56,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:32:56,465 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:32:56,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-10-24 00:32:56,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca0c3bc7/e02f6728606848369845fb4a8b7c7f7a/FLAGc3744fb28 [2020-10-24 00:32:57,265 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:32:57,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-10-24 00:32:57,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca0c3bc7/e02f6728606848369845fb4a8b7c7f7a/FLAGc3744fb28 [2020-10-24 00:32:57,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca0c3bc7/e02f6728606848369845fb4a8b7c7f7a [2020-10-24 00:32:57,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:32:57,612 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:32:57,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:57,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:32:57,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:32:57,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:57" (1/1) ... [2020-10-24 00:32:57,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6201d589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:57, skipping insertion in model container [2020-10-24 00:32:57,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:32:57" (1/1) ... [2020-10-24 00:32:57,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:32:57,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:32:57,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:57,909 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:32:57,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:32:58,005 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:32:58,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58 WrapperNode [2020-10-24 00:32:58,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:32:58,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:32:58,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:32:58,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:32:58,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (1/1) ... [2020-10-24 00:32:58,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:32:58,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:32:58,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:32:58,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:32:58,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (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 00:32:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:32:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:32:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:32:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-24 00:32:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-10-24 00:32:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-10-24 00:32:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:32:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:32:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:32:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:32:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:32:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-24 00:32:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-24 00:32:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-10-24 00:32:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:32:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:32:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:32:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-10-24 00:32:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:32:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:32:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:32:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:32:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:32:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:32:58,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:32:58,878 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-24 00:32:58,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:58 BoogieIcfgContainer [2020-10-24 00:32:58,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:32:58,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:32:58,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:32:58,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:32:58,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:32:57" (1/3) ... [2020-10-24 00:32:58,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fde0680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:58, skipping insertion in model container [2020-10-24 00:32:58,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:32:58" (2/3) ... [2020-10-24 00:32:58,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fde0680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:32:58, skipping insertion in model container [2020-10-24 00:32:58,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:32:58" (3/3) ... [2020-10-24 00:32:58,890 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-10-24 00:32:58,901 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:32:58,905 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:32:58,918 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:32:58,943 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:32:58,943 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:32:58,943 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:32:58,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:32:58,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:32:58,944 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:32:58,944 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:32:58,944 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:32:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-24 00:32:58,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-24 00:32:58,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:32:58,975 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] [2020-10-24 00:32:58,975 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:32:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:32:58,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1036483350, now seen corresponding path program 1 times [2020-10-24 00:32:58,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:32:58,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116989589] [2020-10-24 00:32:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:32:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:59,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:32:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:59,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 00:32:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:59,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-24 00:32:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:59,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:32:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:32:59,391 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 00:32:59,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116989589] [2020-10-24 00:32:59,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:32:59,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:32:59,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599120629] [2020-10-24 00:32:59,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:32:59,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:32:59,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:32:59,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:32:59,421 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-10-24 00:32:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:32:59,862 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2020-10-24 00:32:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:32:59,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-24 00:32:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:32:59,876 INFO L225 Difference]: With dead ends: 150 [2020-10-24 00:32:59,876 INFO L226 Difference]: Without dead ends: 80 [2020-10-24 00:32:59,881 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 00:32:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-24 00:32:59,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-24 00:32:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-24 00:32:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2020-10-24 00:32:59,989 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 46 [2020-10-24 00:32:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:32:59,990 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2020-10-24 00:32:59,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:32:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2020-10-24 00:32:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-24 00:32:59,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:00,001 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] [2020-10-24 00:33:00,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:33:00,002 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:00,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:00,003 INFO L82 PathProgramCache]: Analyzing trace with hash -913409964, now seen corresponding path program 1 times [2020-10-24 00:33:00,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:00,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137970566] [2020-10-24 00:33:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:00,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:33:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:00,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 00:33:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-24 00:33:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:00,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:33:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:00,366 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 00:33:00,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137970566] [2020-10-24 00:33:00,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:33:00,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:33:00,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215030047] [2020-10-24 00:33:00,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:33:00,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:33:00,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:33:00,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:33:00,371 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 6 states. [2020-10-24 00:33:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:33:00,802 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-10-24 00:33:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:33:00,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-10-24 00:33:00,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:33:00,808 INFO L225 Difference]: With dead ends: 95 [2020-10-24 00:33:00,808 INFO L226 Difference]: Without dead ends: 85 [2020-10-24 00:33:00,810 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 00:33:00,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-24 00:33:00,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2020-10-24 00:33:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-24 00:33:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-10-24 00:33:00,860 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 60 [2020-10-24 00:33:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:33:00,860 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-10-24 00:33:00,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:33:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-10-24 00:33:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-24 00:33:00,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:00,864 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, 1, 1] [2020-10-24 00:33:00,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:33:00,864 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:00,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2120476239, now seen corresponding path program 1 times [2020-10-24 00:33:00,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:00,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141408728] [2020-10-24 00:33:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:01,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:33:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:01,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-24 00:33:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-24 00:33:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:01,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-24 00:33:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:33:01,104 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 00:33:01,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141408728] [2020-10-24 00:33:01,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:33:01,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 00:33:01,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22024147] [2020-10-24 00:33:01,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 00:33:01,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:33:01,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 00:33:01,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:33:01,108 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand 6 states. [2020-10-24 00:33:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:33:01,398 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-10-24 00:33:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 00:33:01,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-24 00:33:01,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:33:01,401 INFO L225 Difference]: With dead ends: 99 [2020-10-24 00:33:01,401 INFO L226 Difference]: Without dead ends: 89 [2020-10-24 00:33:01,402 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 00:33:01,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-24 00:33:01,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2020-10-24 00:33:01,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-24 00:33:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2020-10-24 00:33:01,418 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 63 [2020-10-24 00:33:01,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:33:01,419 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2020-10-24 00:33:01,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 00:33:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2020-10-24 00:33:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-24 00:33:01,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:33:01,421 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, 1, 1] [2020-10-24 00:33:01,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:33:01,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:33:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:33:01,423 INFO L82 PathProgramCache]: Analyzing trace with hash -116489871, now seen corresponding path program 1 times [2020-10-24 00:33:01,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:33:01,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495477146] [2020-10-24 00:33:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:33:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:33:01,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:33:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:33:01,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:33:01,522 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:33:01,522 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:33:01,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 00:33:01,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:33:01 BoogieIcfgContainer [2020-10-24 00:33:01,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:33:01,591 INFO L168 Benchmark]: Toolchain (without parser) took 3983.10 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 127.6 MB in the beginning and 88.9 MB in the end (delta: 38.7 MB). Peak memory consumption was 70.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:01,592 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:33:01,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:01,593 INFO L168 Benchmark]: Boogie Preprocessor took 76.12 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:01,594 INFO L168 Benchmark]: RCFGBuilder took 796.62 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 125.3 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:01,595 INFO L168 Benchmark]: TraceAbstraction took 2706.11 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 124.8 MB in the beginning and 88.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 66.8 MB. Max. memory is 8.0 GB. [2020-10-24 00:33:01,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 392.65 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 116.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.12 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 796.62 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 125.3 MB in the end (delta: -10.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2706.11 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 124.8 MB in the beginning and 88.9 MB in the end (delta: 35.9 MB). Peak memory consumption was 66.8 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 69, overapproximation of someBinaryArithmeticDOUBLEoperation at line 63. Possible FailurePath: [L62] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967307, x=4294967307] [L63] double y = 0.0 / 0.0; VAL [x=4294967307] [L64] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967307] [L18] return x != x; VAL [\old(x)=4294967307, \result=0, x=4294967307] [L64] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967307] [L64] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4294967307] [L66] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4294967307, \old(y)=4294967309] [L47] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967307] [L20] __uint32_t msw, lsw; VAL [\old(x)=4294967307, x=4294967307] [L23] ieee_double_shape_type ew_u; VAL [\old(x)=4294967307, ew_u={3:0}, x=4294967307] [L24] ew_u.value = (x) VAL [\old(x)=4294967307, ew_u={3:0}, x=4294967307] [L25] EXPR ew_u.parts.msw VAL [\old(x)=4294967307, ew_u={3:0}, ew_u.parts.msw=4293918721, x=4294967307] [L25] (msw) = ew_u.parts.msw VAL [\old(x)=4294967307, ew_u={3:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967307] [L26] EXPR ew_u.parts.lsw VAL [\old(x)=4294967307, ew_u={3:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967307] [L26] (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=4294967311, \old(x)=4294967307, ew_u={3:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967307] [L29-L30] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967307, lsw=4294967297, msw=4293918721, x=4294967307] [L32-L33] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967307, lsw=4294967297, msw=4293918721, x=4294967307] [L35-L36] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967307, lsw=4294967297, msw=4293918721, x=4294967307] [L39-L40] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967307, lsw=4294967297, msw=4293918721, x=4294967307] [L43] return 0; VAL [\old(x)=4294967307, \result=0, lsw=4294967297, msw=4293918721, x=4294967307] [L47] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967307, \old(y)=4294967309, __fpclassify_double(x)=0, x=4294967307, y=4294967309] [L47] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967307, \old(y)=4294967309, __fpclassify_double(x)=0, x=4294967307, y=4294967309] [L48] return y; VAL [\old(x)=4294967307, \old(y)=4294967309, \result=4294967309, x=4294967307, y=4294967309] [L66] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4294967309, x=4294967307, y=4294967309] [L66] double res = fmin_double(x, y); VAL [fmin_double(x, y)=4294967309, res=4294967309, x=4294967307, y=4294967309] [L69] COND TRUE res != x VAL [res=4294967309, x=4294967307, y=4294967309] [L70] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1231b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 261 SDtfs, 103 SDslu, 412 SDs, 0 SdLazy, 356 SolverSat, 41 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=89occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 19282 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...