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/float_req_bl_1231.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:23:37,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:23:37,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:23:37,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:23:37,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:23:37,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:23:37,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:23:37,340 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 [2019-09-08 01:23:37,366 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:23:37,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:23:37,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:23:37,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:23:37,368 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:23:37,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:23:37,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:23:37,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:23:37,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:23:37,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:23:37,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:23:37,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:23:37,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:23:37,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:23:37,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:23:37,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:23:37,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:23:37,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:23:37,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:23:37,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:23:37,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:23:37,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:23:37,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:23:37,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:23:37,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:23:37,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:23:37,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:23:37,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:23:37,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:23:37,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:23:37,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:23:37,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:23:37,433 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:23:37,434 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:23:37,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1231.c [2019-09-08 01:23:37,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409be67dc/24cc580d330d4907a629d38612c08401/FLAG2aa20130f [2019-09-08 01:23:37,953 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:23:37,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1231.c [2019-09-08 01:23:37,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409be67dc/24cc580d330d4907a629d38612c08401/FLAG2aa20130f [2019-09-08 01:23:38,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409be67dc/24cc580d330d4907a629d38612c08401 [2019-09-08 01:23:38,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:23:38,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:23:38,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:38,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:23:38,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:23:38,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192d0572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38, skipping insertion in model container [2019-09-08 01:23:38,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,391 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:23:38,408 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:23:38,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:38,621 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:23:38,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:23:38,778 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:23:38,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38 WrapperNode [2019-09-08 01:23:38,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:23:38,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:23:38,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:23:38,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:23:38,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (1/1) ... [2019-09-08 01:23:38,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:23:38,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:23:38,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:23:38,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:23:38,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (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 [2019-09-08 01:23:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:23:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:23:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2019-09-08 01:23:38,879 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2019-09-08 01:23:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2019-09-08 01:23:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-09-08 01:23:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:23:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:23:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:23:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2019-09-08 01:23:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2019-09-08 01:23:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-09-08 01:23:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:23:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:23:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:23:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:23:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:23:39,305 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:23:39,306 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 01:23:39,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:39 BoogieIcfgContainer [2019-09-08 01:23:39,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:23:39,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:23:39,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:23:39,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:23:39,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:23:38" (1/3) ... [2019-09-08 01:23:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a4a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:39, skipping insertion in model container [2019-09-08 01:23:39,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:23:38" (2/3) ... [2019-09-08 01:23:39,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9a4a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:23:39, skipping insertion in model container [2019-09-08 01:23:39,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:23:39" (3/3) ... [2019-09-08 01:23:39,314 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1231.c [2019-09-08 01:23:39,325 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:23:39,331 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-08 01:23:39,346 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-08 01:23:39,376 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:23:39,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:23:39,377 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:23:39,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:23:39,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:23:39,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:23:39,377 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:23:39,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:23:39,377 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:23:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2019-09-08 01:23:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-09-08 01:23:39,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:39,404 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-09-08 01:23:39,407 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:39,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash 780794965, now seen corresponding path program 1 times [2019-09-08 01:23:39,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:39,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:39,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:39,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-08 01:23:39,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:39,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:23:39,567 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:23:39,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:23:39,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:39,584 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2019-09-08 01:23:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:39,612 INFO L93 Difference]: Finished difference Result 109 states and 150 transitions. [2019-09-08 01:23:39,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:23:39,614 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 36 [2019-09-08 01:23:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:39,623 INFO L225 Difference]: With dead ends: 109 [2019-09-08 01:23:39,624 INFO L226 Difference]: Without dead ends: 61 [2019-09-08 01:23:39,627 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:23:39,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-09-08 01:23:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-09-08 01:23:39,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-09-08 01:23:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2019-09-08 01:23:39,676 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 36 [2019-09-08 01:23:39,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:39,677 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2019-09-08 01:23:39,677 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:23:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2019-09-08 01:23:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-09-08 01:23:39,680 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:39,681 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-09-08 01:23:39,681 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:39,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash 2089715847, now seen corresponding path program 1 times [2019-09-08 01:23:39,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:39,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:39,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:39,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-08 01:23:39,764 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:39,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:23:39,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:23:39,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:23:39,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:23:39,767 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand 4 states. [2019-09-08 01:23:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:39,846 INFO L93 Difference]: Finished difference Result 112 states and 147 transitions. [2019-09-08 01:23:39,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:23:39,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-09-08 01:23:39,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:39,848 INFO L225 Difference]: With dead ends: 112 [2019-09-08 01:23:39,849 INFO L226 Difference]: Without dead ends: 70 [2019-09-08 01:23:39,850 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:23:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-09-08 01:23:39,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2019-09-08 01:23:39,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2019-09-08 01:23:39,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2019-09-08 01:23:39,871 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 37 [2019-09-08 01:23:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:39,872 INFO L475 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2019-09-08 01:23:39,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:23:39,872 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2019-09-08 01:23:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-08 01:23:39,874 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:39,874 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-08 01:23:39,875 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:39,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:39,875 INFO L82 PathProgramCache]: Analyzing trace with hash -89944420, now seen corresponding path program 1 times [2019-09-08 01:23:39,877 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:39,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:39,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:39,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:39,992 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 01:23:39,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:39,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:23:39,994 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:23:39,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:23:39,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:23:39,994 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand 4 states. [2019-09-08 01:23:40,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:40,021 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2019-09-08 01:23:40,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:23:40,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2019-09-08 01:23:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:40,025 INFO L225 Difference]: With dead ends: 89 [2019-09-08 01:23:40,026 INFO L226 Difference]: Without dead ends: 67 [2019-09-08 01:23:40,026 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:23:40,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-09-08 01:23:40,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-09-08 01:23:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-09-08 01:23:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2019-09-08 01:23:40,038 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 42 [2019-09-08 01:23:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:40,038 INFO L475 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2019-09-08 01:23:40,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:23:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2019-09-08 01:23:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 01:23:40,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:40,041 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-08 01:23:40,041 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:40,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:40,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1197218727, now seen corresponding path program 1 times [2019-09-08 01:23:40,042 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:40,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:40,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:40,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 01:23:40,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:40,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:23:40,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:23:40,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:23:40,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:23:40,133 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand 4 states. [2019-09-08 01:23:40,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:40,168 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2019-09-08 01:23:40,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 01:23:40,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2019-09-08 01:23:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:40,173 INFO L225 Difference]: With dead ends: 93 [2019-09-08 01:23:40,174 INFO L226 Difference]: Without dead ends: 71 [2019-09-08 01:23:40,174 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:23:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-09-08 01:23:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2019-09-08 01:23:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-09-08 01:23:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2019-09-08 01:23:40,196 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 45 [2019-09-08 01:23:40,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:40,200 INFO L475 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2019-09-08 01:23:40,200 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:23:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2019-09-08 01:23:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 01:23:40,202 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:40,202 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-08 01:23:40,203 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:40,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:40,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1707752904, now seen corresponding path program 1 times [2019-09-08 01:23:40,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:40,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:40,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:40,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:23:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 01:23:40,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:23:40,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 01:23:40,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 01:23:40,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 01:23:40,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:23:40,302 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand 3 states. [2019-09-08 01:23:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:23:40,316 INFO L93 Difference]: Finished difference Result 70 states and 90 transitions. [2019-09-08 01:23:40,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 01:23:40,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-09-08 01:23:40,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:23:40,319 INFO L225 Difference]: With dead ends: 70 [2019-09-08 01:23:40,319 INFO L226 Difference]: Without dead ends: 68 [2019-09-08 01:23:40,320 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 01:23:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-09-08 01:23:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-09-08 01:23:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-09-08 01:23:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2019-09-08 01:23:40,328 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 45 [2019-09-08 01:23:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:23:40,329 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2019-09-08 01:23:40,329 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 01:23:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2019-09-08 01:23:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-08 01:23:40,331 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:23:40,331 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 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] [2019-09-08 01:23:40,332 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:23:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:23:40,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1746316374, now seen corresponding path program 1 times [2019-09-08 01:23:40,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:23:40,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:23:40,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:23:40,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:23:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:23:40,469 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:23:40,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:23:40 BoogieIcfgContainer [2019-09-08 01:23:40,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:23:40,513 INFO L168 Benchmark]: Toolchain (without parser) took 2136.25 ms. Allocated memory was 131.6 MB in the beginning and 220.2 MB in the end (delta: 88.6 MB). Free memory was 87.3 MB in the beginning and 184.6 MB in the end (delta: -97.3 MB). Peak memory consumption was 90.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,514 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.91 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 173.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,516 INFO L168 Benchmark]: Boogie Preprocessor took 51.72 ms. Allocated memory is still 198.7 MB. Free memory was 173.7 MB in the beginning and 171.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,517 INFO L168 Benchmark]: RCFGBuilder took 475.64 ms. Allocated memory is still 198.7 MB. Free memory was 171.2 MB in the beginning and 148.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,518 INFO L168 Benchmark]: TraceAbstraction took 1203.09 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 147.4 MB in the beginning and 184.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:23:40,522 INFO L335 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 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.91 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 173.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.72 ms. Allocated memory is still 198.7 MB. Free memory was 173.7 MB in the beginning and 171.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.64 ms. Allocated memory is still 198.7 MB. Free memory was 171.2 MB in the beginning and 148.0 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1203.09 ms. Allocated memory was 198.7 MB in the beginning and 220.2 MB in the end (delta: 21.5 MB). Free memory was 147.4 MB in the beginning and 184.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 75]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 74. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L68] CALL, EXPR isnan_float(x) VAL [\old(x)=4286578692] [L57] return x != x; VAL [\old(x)=4286578692, \result=1, x=4286578692] [L68] RET, EXPR isnan_float(x) VAL [isnan_float(x)=1, x=4286578692, y=4286578691] [L68] EXPR isnan_float(x) && !isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, x=4286578692, y=4286578691] [L68] CALL, EXPR isnan_float(y) VAL [\old(x)=4286578691] [L57] return x != x; VAL [\old(x)=4286578691, \result=0, x=4286578691] [L68] RET, EXPR isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, isnan_float(y)=0, x=4286578692, y=4286578691] [L68] EXPR isnan_float(x) && !isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, isnan_float(y)=0, x=4286578692, y=4286578691] [L68-L69] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))=1, isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, isnan_float(y)=0, x=4286578692, y=4286578691] [L68-L69] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L71] CALL, EXPR fmin_float(x, y) VAL [\old(x)=4286578692, \old(y)=4286578691] [L36] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578692] [L13] __uint32_t w; VAL [\old(x)=4286578692, x=4286578692] [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578692, w=4286578689, x=4286578692] [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578692, w=4286578689, x=4286578692] [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578692, w=4286578689, x=4286578692] [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; VAL [\old(x)=4286578692, \result=0, w=4286578689, x=4286578692] [L36] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578692, \old(y)=4286578691, __fpclassify_float(x)=0, x=4286578692, y=4286578691] [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; VAL [\old(x)=4286578692, \old(y)=4286578691, \result=4286578691, x=4286578692, y=4286578691] [L71] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578691, x=4286578692, y=4286578691] [L71] float res = fmin_float(x, y); [L74] CALL, EXPR isnan_float(x) VAL [\old(x)=4286578692] [L57] return x != x; VAL [\old(x)=4286578692, \result=1, x=4286578692] [L74] RET, EXPR isnan_float(x) VAL [isnan_float(x)=1, res=4286578691, x=4286578692, y=4286578691] [L74] EXPR isnan_float(x) && !isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, res=4286578691, x=4286578692, y=4286578691] [L74] CALL, EXPR isnan_float(y) VAL [\old(x)=4286578691] [L57] return x != x; VAL [\old(x)=4286578691, \result=0, x=4286578691] [L74] RET, EXPR isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, isnan_float(y)=0, res=4286578691, x=4286578692, y=4286578691] [L74] EXPR isnan_float(x) && !isnan_float(y) VAL [isnan_float(x)=1, isnan_float(x) && !isnan_float(y)=1, isnan_float(y)=0, res=4286578691, x=4286578692, y=4286578691] [L74] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L75] __VERIFIER_error() VAL [res=4286578691, x=4286578692, y=4286578691] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 2 error locations. UNSAFE Result, 1.1s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 402 SDtfs, 16 SDslu, 517 SDs, 0 SdLazy, 36 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 8870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 33/33 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...