/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 0.1.25-72570d3 [2020-08-22 21:49:41,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:41,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:41,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:41,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:41,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:41,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:41,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:41,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:41,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:41,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:41,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:41,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:41,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:41,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:41,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:41,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:41,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:41,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:41,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:41,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:41,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:42,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:42,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:42,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:49:42,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:49:42,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:49:42,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:49:42,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:49:42,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:49:42,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:49:42,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:49:42,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:49:42,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:49:42,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:49:42,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:49:42,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:49:42,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:49:42,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:42,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:42,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:42,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:49:42,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:42,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:42,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:42,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:42,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:42,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:42,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:42,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:42,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:42,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:42,025 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:42,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:42,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:42,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:42,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:42,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:42,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:42,026 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-08-22 21:49:42,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:42,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:42,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:42,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:42,357 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:42,358 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-22 21:49:42,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d58a34d3/da21a9e93bc343c9b08a5d6536557c19/FLAG98b4bd590 [2020-08-22 21:49:42,890 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:49:42,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-22 21:49:42,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d58a34d3/da21a9e93bc343c9b08a5d6536557c19/FLAG98b4bd590 [2020-08-22 21:49:43,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d58a34d3/da21a9e93bc343c9b08a5d6536557c19 [2020-08-22 21:49:43,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:49:43,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:49:43,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:43,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:49:43,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:49:43,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43, skipping insertion in model container [2020-08-22 21:49:43,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:49:43,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:49:43,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:43,569 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:49:43,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:43,724 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:49:43,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43 WrapperNode [2020-08-22 21:49:43,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:43,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:49:43,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:49:43,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:49:43,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (1/1) ... [2020-08-22 21:49:43,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:49:43,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:49:43,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:49:43,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:49:43,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (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 [2020-08-22 21:49:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:49:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:49:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 21:49:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 21:49:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-22 21:49:43,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:49:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:49:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:49:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 21:49:43,847 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 21:49:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:49:43,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:49:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:49:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:49:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:49:43,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:49:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-22 21:49:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:49:43,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:49:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 21:49:43,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:49:44,547 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:49:44,548 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 21:49:44,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:44 BoogieIcfgContainer [2020-08-22 21:49:44,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:49:44,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:49:44,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:49:44,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:49:44,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:49:43" (1/3) ... [2020-08-22 21:49:44,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36643d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:44, skipping insertion in model container [2020-08-22 21:49:44,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:43" (2/3) ... [2020-08-22 21:49:44,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36643d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:44, skipping insertion in model container [2020-08-22 21:49:44,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:44" (3/3) ... [2020-08-22 21:49:44,568 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-08-22 21:49:44,579 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:49:44,588 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:49:44,603 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:49:44,626 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:49:44,626 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:49:44,626 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:49:44,626 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:49:44,627 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:49:44,627 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:49:44,627 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:49:44,627 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:49:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states. [2020-08-22 21:49:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 21:49:44,661 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:44,662 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] [2020-08-22 21:49:44,662 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:44,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1608489446, now seen corresponding path program 1 times [2020-08-22 21:49:44,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:44,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103021694] [2020-08-22 21:49:44,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 21:49:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:44,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103021694] [2020-08-22 21:49:44,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:44,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:49:44,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944070840] [2020-08-22 21:49:44,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:49:44,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:44,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:49:44,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:49:44,944 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 4 states. [2020-08-22 21:49:45,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:45,525 INFO L93 Difference]: Finished difference Result 415 states and 505 transitions. [2020-08-22 21:49:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:49:45,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-08-22 21:49:45,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:45,541 INFO L225 Difference]: With dead ends: 415 [2020-08-22 21:49:45,541 INFO L226 Difference]: Without dead ends: 213 [2020-08-22 21:49:45,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:49:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-08-22 21:49:45,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-08-22 21:49:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-08-22 21:49:45,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2020-08-22 21:49:45,623 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 46 [2020-08-22 21:49:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:45,623 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2020-08-22 21:49:45,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:49:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-08-22 21:49:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-08-22 21:49:45,627 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:45,627 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] [2020-08-22 21:49:45,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:49:45,628 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:45,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:45,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1262573606, now seen corresponding path program 1 times [2020-08-22 21:49:45,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:45,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825571387] [2020-08-22 21:49:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:45,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:45,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:45,786 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:49:45,787 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:49:45,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:49:45,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:49:45 BoogieIcfgContainer [2020-08-22 21:49:45,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:49:45,849 INFO L168 Benchmark]: Toolchain (without parser) took 2591.38 ms. Allocated memory was 140.0 MB in the beginning and 234.9 MB in the end (delta: 94.9 MB). Free memory was 104.2 MB in the beginning and 133.3 MB in the end (delta: -29.1 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,850 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.88 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 178.7 MB in the end (delta: -74.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,853 INFO L168 Benchmark]: Boogie Preprocessor took 62.50 ms. Allocated memory is still 203.4 MB. Free memory was 178.7 MB in the beginning and 176.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,854 INFO L168 Benchmark]: RCFGBuilder took 766.99 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 127.9 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,855 INFO L168 Benchmark]: TraceAbstraction took 1282.88 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 127.2 MB in the beginning and 133.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:45,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 466.88 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 178.7 MB in the end (delta: -74.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.50 ms. Allocated memory is still 203.4 MB. Free memory was 178.7 MB in the beginning and 176.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 766.99 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 127.9 MB in the end (delta: 48.1 MB). Peak memory consumption was 48.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1282.88 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 127.2 MB in the beginning and 133.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=4294967311, \old(Zero_fmod)=4294967297, \old(Zero_fmod)=4294967304, one_fmod=1, Zero_fmod={3:0}] [L182] double x = 0.0; VAL [one_fmod=1, x=0, Zero_fmod={3:0}] [L183] double y = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967309, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L185] COND TRUE y < 0.0 || y > 0.0 VAL [one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=0, \old(y)=4294967309, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=0, \old(y)=4294967309, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L25] __uint32_t lx, ly, lz; VAL [\old(x)=0, \old(y)=4294967309, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=4294967309, ew_u={5:0}, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L29] ew_u.value = (x) VAL [\old(x)=0, \old(y)=4294967309, ew_u={5:0}, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L30] EXPR ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967309, ew_u={5:0}, ew_u.parts.msw=4294967294, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L30] (hx) = ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967309, ew_u={5:0}, ew_u.parts.msw=4294967294, hx=-2, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L31] EXPR ew_u.parts.lsw VAL [\old(x)=0, \old(y)=4294967309, ew_u={5:0}, ew_u.parts.lsw=4294967306, hx=-2, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L31] (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=4294967300, \old(x)=0, \old(y)=4294967309, ew_u={5:0}, ew_u.parts.lsw=4294967306, hx=-2, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L34] ieee_double_shape_type ew_u; VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, hx=-2, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L35] ew_u.value = (y) VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, hx=-2, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L36] EXPR ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, ew_u.parts.msw=0, hx=-2, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L36] (hy) = ew_u.parts.msw VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, ew_u.parts.msw=0, hx=-2, hy=0, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L37] EXPR ew_u.parts.lsw VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, ew_u.parts.lsw=4294967302, hx=-2, hy=0, lx=4294967306, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L37] (ly) = ew_u.parts.lsw VAL [\old(x)=0, \old(y)=4294967309, ew_u={2:0}, ew_u.parts.lsw=4294967302, hx=-2, hy=0, lx=4294967306, ly=4294967302, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L39] sx = hx & 0x80000000 VAL [\old(x)=0, \old(y)=4294967309, hx=-2, hy=0, lx=4294967306, ly=4294967302, one_fmod=1, sx=-1, x=0, y=4294967309, Zero_fmod={3:0}] [L40] hx ^= sx VAL [\old(x)=0, \old(y)=4294967309, hy=0, lx=4294967306, ly=4294967302, one_fmod=1, sx=-1, x=0, y=4294967309, Zero_fmod={3:0}] [L41] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=4294967309, lx=4294967306, ly=4294967302, one_fmod=1, sx=-1, x=0, y=4294967309, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=0, \old(y)=4294967309, hx=2146435072, lx=4294967306, ly=4294967302, one_fmod=1, sx=-1, x=0, y=4294967309, Zero_fmod={3:0}] [L45] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=4294967309, hx=2146435072, lx=4294967306, ly=4294967302, one_fmod=1, sx=-1, x=0, y=4294967309, Zero_fmod={3:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=4294967310, one_fmod=1, x=0, y=4294967309, Zero_fmod={3:0}] [L187] double res = fmod_double(x, y); VAL [fmod_double(x, y)=4294967310, one_fmod=1, res=4294967310, x=0, y=4294967309, Zero_fmod={3:0}] [L190] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, res=4294967310, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967309, Zero_fmod={3:0}] [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [one_fmod=1, res=4294967310, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967309, Zero_fmod={3:0}] [L191] __VERIFIER_error() VAL [one_fmod=1, res=4294967310, x=0, y=4294967309, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 45 SDslu, 184 SDs, 0 SdLazy, 266 SolverSat, 6 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred 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, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 3510 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...