/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 17:55:25,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 17:55:25,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 17:55:25,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 17:55:25,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 17:55:25,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 17:55:25,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 17:55:25,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 17:55:25,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 17:55:25,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 17:55:25,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 17:55:25,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 17:55:25,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 17:55:25,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 17:55:25,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 17:55:25,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 17:55:25,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 17:55:25,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 17:55:25,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 17:55:25,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 17:55:25,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 17:55:25,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 17:55:25,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 17:55:25,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 17:55:25,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 17:55:25,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 17:55:25,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 17:55:25,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 17:55:25,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 17:55:26,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 17:55:26,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 17:55:26,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 17:55:26,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 17:55:26,033 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 17:55:26,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 17:55:26,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 17:55:26,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 17:55:26,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 17:55:26,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 17:55:26,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 17:55:26,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 17:55:26,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 17:55:26,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 17:55:26,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 17:55:26,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 17:55:26,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 17:55:26,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 17:55:26,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 17:55:26,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 17:55:26,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 17:55:26,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 17:55:26,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 17:55:26,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 17:55:26,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 17:55:26,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 17:55:26,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 17:55:26,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 17:55:26,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 17:55:26,420 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 17:55:26,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-23 17:55:26,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dad21e4/c07eca9688244103aa2674d877476ce9/FLAG93b040ead [2020-10-23 17:55:27,159 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 17:55:27,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-23 17:55:27,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dad21e4/c07eca9688244103aa2674d877476ce9/FLAG93b040ead [2020-10-23 17:55:27,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dad21e4/c07eca9688244103aa2674d877476ce9 [2020-10-23 17:55:27,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 17:55:27,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 17:55:27,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:27,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 17:55:27,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 17:55:27,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c08bcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27, skipping insertion in model container [2020-10-23 17:55:27,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 17:55:27,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 17:55:27,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:27,461 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 17:55:27,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 17:55:27,583 INFO L208 MainTranslator]: Completed translation [2020-10-23 17:55:27,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27 WrapperNode [2020-10-23 17:55:27,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 17:55:27,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 17:55:27,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 17:55:27,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 17:55:27,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (1/1) ... [2020-10-23 17:55:27,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 17:55:27,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 17:55:27,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 17:55:27,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 17:55:27,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (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 [2020-10-23 17:55:27,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-23 17:55:27,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 17:55:27,718 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-23 17:55:27,719 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 17:55:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-23 17:55:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 17:55:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 17:55:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 17:55:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-23 17:55:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 17:55:28,327 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 17:55:28,328 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-23 17:55:28,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:28 BoogieIcfgContainer [2020-10-23 17:55:28,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 17:55:28,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 17:55:28,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 17:55:28,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 17:55:28,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 05:55:27" (1/3) ... [2020-10-23 17:55:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18b34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:28, skipping insertion in model container [2020-10-23 17:55:28,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 05:55:27" (2/3) ... [2020-10-23 17:55:28,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18b34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 05:55:28, skipping insertion in model container [2020-10-23 17:55:28,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 05:55:28" (3/3) ... [2020-10-23 17:55:28,342 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-10-23 17:55:28,354 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 17:55:28,358 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 17:55:28,372 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 17:55:28,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 17:55:28,399 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 17:55:28,399 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 17:55:28,399 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 17:55:28,399 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 17:55:28,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 17:55:28,399 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 17:55:28,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 17:55:28,418 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-23 17:55:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-23 17:55:28,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:28,425 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] [2020-10-23 17:55:28,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:28,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:28,432 INFO L82 PathProgramCache]: Analyzing trace with hash 154150217, now seen corresponding path program 1 times [2020-10-23 17:55:28,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:28,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238595162] [2020-10-23 17:55:28,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 17:55:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 17:55:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:28,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 17:55:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 17:55:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 17:55:28,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238595162] [2020-10-23 17:55:28,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 17:55:28,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 17:55:28,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917483834] [2020-10-23 17:55:28,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 17:55:28,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 17:55:28,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 17:55:28,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 17:55:28,753 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-23 17:55:29,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 17:55:29,092 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-23 17:55:29,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 17:55:29,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-23 17:55:29,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 17:55:29,103 INFO L225 Difference]: With dead ends: 143 [2020-10-23 17:55:29,104 INFO L226 Difference]: Without dead ends: 69 [2020-10-23 17:55:29,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 17:55:29,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-23 17:55:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-23 17:55:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-23 17:55:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-23 17:55:29,157 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-23 17:55:29,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 17:55:29,157 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-23 17:55:29,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 17:55:29,157 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-23 17:55:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 17:55:29,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 17:55:29,159 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] [2020-10-23 17:55:29,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 17:55:29,159 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 17:55:29,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 17:55:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1169914594, now seen corresponding path program 1 times [2020-10-23 17:55:29,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 17:55:29,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822694744] [2020-10-23 17:55:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 17:55:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:29,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 17:55:29,438 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 17:55:29,498 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 17:55:29,499 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 17:55:29,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 17:55:29,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 05:55:29 BoogieIcfgContainer [2020-10-23 17:55:29,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 17:55:29,598 INFO L168 Benchmark]: Toolchain (without parser) took 2406.76 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 127.8 MB in the beginning and 171.8 MB in the end (delta: -44.0 MB). Peak memory consumption was 80.3 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:29,599 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 17:55:29,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.60 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 114.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:29,602 INFO L168 Benchmark]: Boogie Preprocessor took 62.02 ms. Allocated memory is still 153.1 MB. Free memory was 114.1 MB in the beginning and 111.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:29,603 INFO L168 Benchmark]: RCFGBuilder took 684.00 ms. Allocated memory is still 153.1 MB. Free memory was 111.5 MB in the beginning and 124.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:29,605 INFO L168 Benchmark]: TraceAbstraction took 1260.19 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 123.5 MB in the beginning and 171.8 MB in the end (delta: -48.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 8.0 GB. [2020-10-23 17:55:29,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 153.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 389.60 ms. Allocated memory is still 153.1 MB. Free memory was 127.3 MB in the beginning and 114.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.02 ms. Allocated memory is still 153.1 MB. Free memory was 114.1 MB in the beginning and 111.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 684.00 ms. Allocated memory is still 153.1 MB. Free memory was 111.5 MB in the beginning and 124.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1260.19 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 123.5 MB in the beginning and 171.8 MB in the end (delta: -48.4 MB). Peak memory consumption was 74.4 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 bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, 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)=9223372034706243607, \old(Zero_fmod)=9223372034706243604, \old(Zero_fmod)=9223372034706243598, one_fmod=1, Zero_fmod={5:0}] [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) VAL [\old(x)=9223372034706243597, one_fmod=1, Zero_fmod={5:0}] [L166] __int32_t hx; VAL [\old(x)=9223372034706243597, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243597, \result=-2, hx=0, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L185] RET isfinite_double(x) VAL [isfinite_double(x)=-2, one_fmod=1, x=9223372034706243597, Zero_fmod={5:0}] [L185] COND TRUE isfinite_double(x) [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, one_fmod=1, Zero_fmod={5:0}] [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, one_fmod=1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [\old(x)=9223372034706243597, \old(y)=9223372034706243593, hx=2146435072, lx=9223372034706243605, ly=9223372034706243586, one_fmod=1, sx=-1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243602, one_fmod=1, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243602, x=9223372034706243597, y=9223372034706243593, Zero_fmod={5:0}] [L191] CALL reach_error() VAL [one_fmod=1, Zero_fmod={5:0}] [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...