/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:45:41,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:45:41,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:45:42,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:45:42,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:45:42,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:45:42,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:45:42,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:45:42,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:45:42,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:45:42,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:45:42,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:45:42,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:45:42,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:45:42,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:45:42,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:45:42,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:45:42,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:45:42,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:45:42,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:45:42,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:45:42,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:45:42,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:45:42,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:45:42,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 06:45:42,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:45:42,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:45:42,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:45:42,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 06:45:42,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:45:42,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:45:42,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:45:42,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:45:42,128 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:45:42,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:45:42,128 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:45:42,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:45:42,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:45:42,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:45:42,130 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:45:42,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:45:42,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:45:42,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:45:42,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:45:42,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:45:42,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:45:42,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:45:42,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:45:42,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:45:42,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:45:42,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:45:42,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:45:42,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:45:42,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:45:42,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:45:42,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:45:42,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:45:42,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:45:42,471 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:45:42,471 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-19 06:45:42,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/599e108e0/904042e33406443ca5f183e281d5bf99/FLAG7087aca61 [2020-08-19 06:45:43,021 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:45:43,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-19 06:45:43,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/599e108e0/904042e33406443ca5f183e281d5bf99/FLAG7087aca61 [2020-08-19 06:45:43,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/599e108e0/904042e33406443ca5f183e281d5bf99 [2020-08-19 06:45:43,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:45:43,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:45:43,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:45:43,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:45:43,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:45:43,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e33f227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43, skipping insertion in model container [2020-08-19 06:45:43,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:45:43,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:45:43,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:45:43,604 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:45:43,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:45:43,755 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:45:43,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43 WrapperNode [2020-08-19 06:45:43,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:45:43,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:45:43,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:45:43,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:45:43,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... [2020-08-19 06:45:43,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:45:43,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:45:43,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:45:43,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:45:43,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 06:45:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:45:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:45:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-08-19 06:45:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-19 06:45:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:45:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:45:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-08-19 06:45:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:45:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-19 06:45:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:45:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:45:43,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:45:44,282 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:45:44,283 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 06:45:44,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:45:44 BoogieIcfgContainer [2020-08-19 06:45:44,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:45:44,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:45:44,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:45:44,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:45:44,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:45:43" (1/3) ... [2020-08-19 06:45:44,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a51e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:45:44, skipping insertion in model container [2020-08-19 06:45:44,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:43" (2/3) ... [2020-08-19 06:45:44,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0a51e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:45:44, skipping insertion in model container [2020-08-19 06:45:44,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:45:44" (3/3) ... [2020-08-19 06:45:44,296 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-08-19 06:45:44,305 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:45:44,312 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:45:44,326 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:45:44,348 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:45:44,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:45:44,348 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:45:44,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:45:44,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:45:44,348 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:45:44,348 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:45:44,348 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:45:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-19 06:45:44,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-19 06:45:44,374 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:45:44,375 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] [2020-08-19 06:45:44,376 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:45:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:45:44,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-08-19 06:45:44,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:45:44,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013239723] [2020-08-19 06:45:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:45:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:44,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:45:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:44,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:45:44,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013239723] [2020-08-19 06:45:44,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:45:44,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 06:45:44,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385033526] [2020-08-19 06:45:44,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 06:45:44,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:45:44,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 06:45:44,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 06:45:44,669 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-08-19 06:45:44,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:45:44,988 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-08-19 06:45:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 06:45:44,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-19 06:45:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:45:45,008 INFO L225 Difference]: With dead ends: 86 [2020-08-19 06:45:45,009 INFO L226 Difference]: Without dead ends: 43 [2020-08-19 06:45:45,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:45:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-19 06:45:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-19 06:45:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-19 06:45:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-08-19 06:45:45,061 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-08-19 06:45:45,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:45:45,061 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-08-19 06:45:45,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 06:45:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-08-19 06:45:45,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 06:45:45,063 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:45:45,063 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] [2020-08-19 06:45:45,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:45:45,064 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:45:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:45:45,065 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-08-19 06:45:45,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:45:45,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558310108] [2020-08-19 06:45:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:45:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 06:45:45,117 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 06:45:45,117 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 06:45:45,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:45:45,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 06:45:45 BoogieIcfgContainer [2020-08-19 06:45:45,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 06:45:45,145 INFO L168 Benchmark]: Toolchain (without parser) took 1795.67 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.7 MB in the beginning and 108.0 MB in the end (delta: -5.3 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,146 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.22 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 180.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,148 INFO L168 Benchmark]: Boogie Preprocessor took 59.74 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,149 INFO L168 Benchmark]: RCFGBuilder took 470.74 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 156.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,150 INFO L168 Benchmark]: TraceAbstraction took 853.81 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 108.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:45,155 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 406.22 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 180.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.74 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 178.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 470.74 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 156.2 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 853.81 ms. Allocated memory is still 202.9 MB. Free memory was 155.5 MB in the beginning and 108.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L88] double x = 0.0 / 0.0; [L89] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND TRUE j0 < 20 [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; [L89] RET, EXPR floor_double(x) [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) [L80] return x != x; [L92] RET, EXPR isnan_double(res) [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...