/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:55:24,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:55:24,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:55:24,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:55:24,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:55:24,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:55:24,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:55:24,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:55:24,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:55:24,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:55:24,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:55:24,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:55:24,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:55:24,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:55:24,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:55:24,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:55:24,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:55:24,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:55:24,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:55:24,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:55:24,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:55:24,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:55:24,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:55:24,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:55:24,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:55:24,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:55:24,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:55:24,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:55:24,410 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 [2020-07-07 10:55:24,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:55:24,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:55:24,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:55:24,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:55:24,440 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:55:24,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:55:24,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:55:24,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:55:24,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:55:24,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:55:24,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:55:24,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:55:24,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:55:24,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:55:24,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:55:24,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:55:24,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:55:24,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:55:24,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:55:24,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:55:24,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:55:24,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:55:24,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:55:24,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:55:24,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:55:24,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:55:24,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:55:24,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:55:24,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:55:24,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:55:24,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:55:24,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:55:24,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:55:24,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:55:24,780 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:55:24,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-07 10:55:24,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264e523fc/92a9ab3dc5db44e9bed410e00185127f/FLAG63e055840 [2020-07-07 10:55:25,309 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:55:25,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-07 10:55:25,318 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264e523fc/92a9ab3dc5db44e9bed410e00185127f/FLAG63e055840 [2020-07-07 10:55:25,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264e523fc/92a9ab3dc5db44e9bed410e00185127f [2020-07-07 10:55:25,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:55:25,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:55:25,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:25,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:55:25,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:55:25,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:25" (1/1) ... [2020-07-07 10:55:25,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6673af63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:25, skipping insertion in model container [2020-07-07 10:55:25,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:25" (1/1) ... [2020-07-07 10:55:25,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:55:25,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:55:26,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:26,294 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:55:26,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:26,393 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:55:26,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26 WrapperNode [2020-07-07 10:55:26,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:26,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:55:26,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:55:26,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:55:26,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:55:26,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:55:26,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:55:26,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:55:26,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (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 [2020-07-07 10:55:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:55:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:55:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 10:55:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-07 10:55:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-07 10:55:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:55:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:55:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 10:55:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 10:55:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-07 10:55:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:55:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 10:55:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:55:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:55:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-07 10:55:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:55:27,145 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:55:27,145 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-07 10:55:27,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:27 BoogieIcfgContainer [2020-07-07 10:55:27,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:55:27,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:55:27,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:55:27,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:55:27,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:55:25" (1/3) ... [2020-07-07 10:55:27,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61615c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:27, skipping insertion in model container [2020-07-07 10:55:27,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26" (2/3) ... [2020-07-07 10:55:27,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61615c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:27, skipping insertion in model container [2020-07-07 10:55:27,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:27" (3/3) ... [2020-07-07 10:55:27,160 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-07-07 10:55:27,171 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:55:27,179 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:55:27,191 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:55:27,215 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:55:27,215 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:55:27,215 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:55:27,215 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:55:27,216 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:55:27,216 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:55:27,216 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:55:27,216 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:55:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-07 10:55:27,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-07 10:55:27,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:27,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:55:27,242 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:27,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1999170223, now seen corresponding path program 1 times [2020-07-07 10:55:27,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:27,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671112042] [2020-07-07 10:55:27,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:27,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671112042] [2020-07-07 10:55:27,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:27,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:55:27,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635018293] [2020-07-07 10:55:27,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:55:27,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:27,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:55:27,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:55:27,546 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-07-07 10:55:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:27,923 INFO L93 Difference]: Finished difference Result 142 states and 232 transitions. [2020-07-07 10:55:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:55:27,925 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-07 10:55:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:27,939 INFO L225 Difference]: With dead ends: 142 [2020-07-07 10:55:27,940 INFO L226 Difference]: Without dead ends: 69 [2020-07-07 10:55:27,943 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 [2020-07-07 10:55:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-07 10:55:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-07-07 10:55:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-07 10:55:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2020-07-07 10:55:27,987 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 19 [2020-07-07 10:55:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:27,988 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-07-07 10:55:27,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:55:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2020-07-07 10:55:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-07 10:55:27,989 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:27,989 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] [2020-07-07 10:55:27,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:55:27,990 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:27,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash -656970196, now seen corresponding path program 1 times [2020-07-07 10:55:27,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:27,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975444945] [2020-07-07 10:55:27,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:28,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:55:28,200 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:55:28,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:55:28,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:55:28 BoogieIcfgContainer [2020-07-07 10:55:28,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:55:28,250 INFO L168 Benchmark]: Toolchain (without parser) took 2500.82 ms. Allocated memory was 146.3 MB in the beginning and 235.9 MB in the end (delta: 89.7 MB). Free memory was 102.7 MB in the beginning and 186.7 MB in the end (delta: -84.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:28,253 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:55:28,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.11 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 177.9 MB in the end (delta: -75.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:28,256 INFO L168 Benchmark]: Boogie Preprocessor took 58.85 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:28,257 INFO L168 Benchmark]: RCFGBuilder took 697.52 ms. Allocated memory is still 202.9 MB. Free memory was 174.7 MB in the beginning and 138.8 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:28,258 INFO L168 Benchmark]: TraceAbstraction took 1094.03 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.1 MB in the beginning and 186.7 MB in the end (delta: -48.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 10:55:28,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.11 ms. Allocated memory was 146.3 MB in the beginning and 202.9 MB in the end (delta: 56.6 MB). Free memory was 102.5 MB in the beginning and 177.9 MB in the end (delta: -75.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.85 ms. Allocated memory is still 202.9 MB. Free memory was 177.9 MB in the beginning and 175.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 697.52 ms. Allocated memory is still 202.9 MB. Free memory was 174.7 MB in the beginning and 138.8 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1094.03 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.1 MB in the beginning and 186.7 MB in the end (delta: -48.6 MB). There was no memory consumed. 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 39, 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)=12884901902, \old(Zero_fmod)=12884901892, \old(Zero_fmod)=12884901896, one_fmod=1, Zero_fmod={3:0}] [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 VAL [one_fmod=1, x=0, y=12884901897, Zero_fmod={3:0}] [L187] CALL, EXPR fmod_double(x, y) VAL [\old(x)=0, \old(y)=12884901897, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=0, \old(y)=12884901897, one_fmod=1, x=0, y=12884901897, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=12884901897, lx=12884901894, ly=12884901900, one_fmod=1, sx=6, x=0, y=12884901897, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=12884901897, hx=2146435072, lx=12884901894, ly=12884901900, one_fmod=1, sx=6, x=0, y=12884901897, Zero_fmod={3:0}] [L187] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=12884901891, one_fmod=1, x=0, y=12884901897, Zero_fmod={3:0}] [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, res=12884901891, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=12884901897, Zero_fmod={3:0}] [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() VAL [one_fmod=1, res=12884901891, x=0, y=12884901897, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 99 SDtfs, 14 SDslu, 85 SDs, 0 SdLazy, 104 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=74occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 918 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...