/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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:45:20,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:45:20,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:45:20,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:45:20,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:45:20,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:45:20,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:45:20,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:45:20,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:45:20,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:45:20,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:45:20,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:45:20,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:45:20,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:45:20,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:45:20,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:45:20,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:45:20,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:45:20,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:45:20,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:45:20,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:45:20,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:45:20,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:45:20,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:45:20,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 04:45:20,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 04:45:20,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 04:45:20,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 04:45:20,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 04:45:20,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 04:45:20,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:45:20,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:45:20,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:45:20,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:45:20,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:45:20,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:45:20,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:45:20,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:45:20,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:45:20,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:45:20,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:45:20,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:45:20,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:45:20,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:45:20,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:45:20,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:45:20,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:45:20,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:45:20,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:45:20,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:45:20,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:45:20,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:45:20,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:45:20,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:45:20,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:45:20,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:45:20,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:45:20,914 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:45:20,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:45:20,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:45:20,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:45:20,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:45:20,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:45:20,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:45:20,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:45:21,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:45:21,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:45:21,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:45:21,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:45:21,332 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:45:21,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-11-07 04:45:21,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83e7c9f1/eef489e08bde49d49cdd317f7dd4c1be/FLAG4038a2a46 [2020-11-07 04:45:22,130 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:45:22,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-11-07 04:45:22,147 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83e7c9f1/eef489e08bde49d49cdd317f7dd4c1be/FLAG4038a2a46 [2020-11-07 04:45:22,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83e7c9f1/eef489e08bde49d49cdd317f7dd4c1be [2020-11-07 04:45:22,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:45:22,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:45:22,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:22,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:45:22,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:45:22,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564377d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22, skipping insertion in model container [2020-11-07 04:45:22,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:45:22,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:45:22,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:22,715 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:45:22,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:22,791 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:45:22,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22 WrapperNode [2020-11-07 04:45:22,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:22,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:45:22,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:45:22,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:45:22,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (1/1) ... [2020-11-07 04:45:22,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:45:22,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:45:22,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:45:22,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:45:22,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (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 [2020-11-07 04:45:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:45:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:45:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:45:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-11-07 04:45:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-11-07 04:45:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-11-07 04:45:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:45:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-11-07 04:45:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-11-07 04:45:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:45:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:45:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:45:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-07 04:45:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:45:23,875 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:45:23,876 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-07 04:45:23,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:23 BoogieIcfgContainer [2020-11-07 04:45:23,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:45:23,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:45:23,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:45:23,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:45:23,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:45:22" (1/3) ... [2020-11-07 04:45:23,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df007e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:23, skipping insertion in model container [2020-11-07 04:45:23,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:22" (2/3) ... [2020-11-07 04:45:23,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df007e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:23, skipping insertion in model container [2020-11-07 04:45:23,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:23" (3/3) ... [2020-11-07 04:45:23,887 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-11-07 04:45:23,903 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:45:23,907 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:45:23,919 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:45:23,944 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:45:23,944 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:45:23,944 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:45:23,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:45:23,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:45:23,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:45:23,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:45:23,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:45:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states. [2020-11-07 04:45:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-07 04:45:23,980 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:23,981 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] [2020-11-07 04:45:23,982 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:23,988 INFO L82 PathProgramCache]: Analyzing trace with hash 874117461, now seen corresponding path program 1 times [2020-11-07 04:45:23,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:23,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1820724600] [2020-11-07 04:45:23,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-07 04:45:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:24,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1820724600] [2020-11-07 04:45:24,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:24,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:45:24,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683871708] [2020-11-07 04:45:24,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:45:24,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:24,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:45:24,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:45:24,360 INFO L87 Difference]: Start difference. First operand 229 states. Second operand 4 states. [2020-11-07 04:45:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:25,026 INFO L93 Difference]: Finished difference Result 424 states and 515 transitions. [2020-11-07 04:45:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:45:25,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2020-11-07 04:45:25,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:25,041 INFO L225 Difference]: With dead ends: 424 [2020-11-07 04:45:25,042 INFO L226 Difference]: Without dead ends: 219 [2020-11-07 04:45:25,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:45:25,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-07 04:45:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-11-07 04:45:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-11-07 04:45:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 246 transitions. [2020-11-07 04:45:25,132 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 246 transitions. Word has length 52 [2020-11-07 04:45:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:25,133 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 246 transitions. [2020-11-07 04:45:25,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:45:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 246 transitions. [2020-11-07 04:45:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-11-07 04:45:25,137 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:25,137 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:45:25,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:45:25,138 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:25,139 INFO L82 PathProgramCache]: Analyzing trace with hash 595290325, now seen corresponding path program 1 times [2020-11-07 04:45:25,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:25,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625707018] [2020-11-07 04:45:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:25,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:25,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:25,370 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:45:25,370 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:45:25,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:45:25,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:45:25 BoogieIcfgContainer [2020-11-07 04:45:25,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:45:25,464 INFO L168 Benchmark]: Toolchain (without parser) took 3030.65 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 127.6 MB in the beginning and 150.5 MB in the end (delta: -22.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:25,465 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 125.1 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:25,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.20 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 113.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:25,469 INFO L168 Benchmark]: Boogie Preprocessor took 67.53 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 111.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:25,470 INFO L168 Benchmark]: RCFGBuilder took 1016.84 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 95.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:25,471 INFO L168 Benchmark]: TraceAbstraction took 1578.30 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 95.1 MB in the beginning and 150.5 MB in the end (delta: -55.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:25,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.2 MB in the beginning and 125.1 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 350.20 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 113.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.53 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 111.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1016.84 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 95.6 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1578.30 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 95.1 MB in the beginning and 150.5 MB in the end (delta: -55.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=4294967317, \old(Zero_fmod)=4294967304, \old(Zero_fmod)=4294967314, one_fmod=1, Zero_fmod={9:0}] [L184] double x = 0.0; VAL [one_fmod=1, x=0, Zero_fmod={9:0}] [L185] double y = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967300, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L187] COND TRUE y < 0.0 || y > 0.0 VAL [one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L189] CALL, EXPR fmod_double(x, y) VAL [\old(x)=0, \old(y)=4294967300, one_fmod=1, Zero_fmod={9:0}] [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=0, \old(y)=4294967300, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L27] __uint32_t lx, ly, lz; VAL [\old(x)=0, \old(y)=4294967300, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=4294967300, ew_u={10:0}, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L31] ew_u.value = (x) VAL [\old(x)=0, \old(y)=4294967300, ew_u={10:0}, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L32] EXPR ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967300, ew_u={10:0}, ew_u.parts.msw=0, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L32] (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=4294967311, \old(x)=0, \old(y)=4294967300, ew_u={10:0}, ew_u.parts.msw=0, hx=0, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=0, \old(y)=4294967300, ew_u={10:0}, ew_u.parts.lsw=4294967318, hx=0, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L33] (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=4294967316, \old(x)=0, \old(y)=4294967300, ew_u={10:0}, ew_u.parts.lsw=4294967318, hx=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L36] ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=4294967300, ew_u={3:0}, hx=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L37] ew_u.value = (y) VAL [\old(x)=0, \old(y)=4294967300, ew_u={3:0}, hx=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L38] EXPR ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967300, ew_u={3:0}, ew_u.parts.msw=0, hx=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L38] (hy) = ew_u.parts.msw VAL [(hy) = ew_u.parts.msw=4294967313, \old(x)=0, \old(y)=4294967300, ew_u={3:0}, ew_u.parts.msw=0, hx=0, hy=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L39] EXPR ew_u.parts.lsw VAL [\old(x)=0, \old(y)=4294967300, ew_u={3:0}, ew_u.parts.lsw=4294967315, hx=0, hy=0, lx=4294967318, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L39] (ly) = ew_u.parts.lsw VAL [(ly) = ew_u.parts.lsw=4294967308, \old(x)=0, \old(y)=4294967300, ew_u={3:0}, ew_u.parts.lsw=4294967315, hx=0, hy=0, lx=4294967318, ly=4294967315, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L41] sx = hx & 0x80000000 VAL [\old(x)=0, \old(y)=4294967300, hx=0, hy=0, lx=4294967318, ly=4294967315, one_fmod=1, sx=-1, x=0, y=4294967300, Zero_fmod={9:0}] [L42] hx ^= sx VAL [\old(x)=0, \old(y)=4294967300, hy=0, lx=4294967318, ly=4294967315, one_fmod=1, sx=-1, x=0, y=4294967300, Zero_fmod={9:0}] [L43] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=4294967300, lx=4294967318, ly=4294967315, one_fmod=1, sx=-1, x=0, y=4294967300, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=0, \old(y)=4294967300, hx=2146435072, lx=4294967318, ly=4294967315, one_fmod=1, sx=-1, x=0, y=4294967300, Zero_fmod={9:0}] [L47] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=4294967300, hx=2146435072, lx=4294967318, ly=4294967315, one_fmod=1, sx=-1, x=0, y=4294967300, Zero_fmod={9:0}] [L189] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=4294967305, one_fmod=1, x=0, y=4294967300, Zero_fmod={9:0}] [L189] double res = fmod_double(x, y); VAL [fmod_double(x, y)=4294967305, one_fmod=1, res=4294967305, x=0, y=4294967300, Zero_fmod={9:0}] [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, res=4294967305, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967300, Zero_fmod={9:0}] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [one_fmod=1, res=4294967305, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967300, Zero_fmod={9:0}] [L193] CALL reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] [L3] __assert_fail("0", "double_req_bl_1130a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 233 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 47 SDslu, 183 SDs, 0 SdLazy, 275 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 5202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...