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-benchs/filter1.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:10:54,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:10:54,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:10:54,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:10:54,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:10:54,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:10:54,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:10:54,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:10:54,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:10:54,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:10:54,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:10:54,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:10:54,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:10:54,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:10:54,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:10:54,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:10:54,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:10:54,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:10:54,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:10:54,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:10:54,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:10:54,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:10:54,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:10:54,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:10:54,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:10:54,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:10:54,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:10:54,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:10:54,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:10:54,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:10:54,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:10:54,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:10:54,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:10:54,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:10:54,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:10:54,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:10:54,791 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 01:10:54,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:10:54,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:10:54,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:10:54,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:10:54,809 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:10:54,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:10:54,810 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:10:54,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:10:54,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:10:54,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:10:54,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:10:54,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:10:54,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:10:54,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:10:54,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:10:54,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:10:54,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:10:54,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:10:54,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:10:54,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:10:54,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:10:54,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:10:54,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:10:54,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:10:54,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:10:54,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:10:54,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:10:54,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:10:54,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:10:54,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:10:54,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:10:54,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:10:54,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:10:54,870 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:10:54,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter1.c.v+lhb-reducer.c [2019-09-08 01:10:54,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c9abd50/60c93a10bfac48aa9cbeee7877cdb660/FLAG196272a5d [2019-09-08 01:10:55,440 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:10:55,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter1.c.v+lhb-reducer.c [2019-09-08 01:10:55,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c9abd50/60c93a10bfac48aa9cbeee7877cdb660/FLAG196272a5d [2019-09-08 01:10:55,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c9abd50/60c93a10bfac48aa9cbeee7877cdb660 [2019-09-08 01:10:55,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:10:55,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:10:55,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:10:55,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:10:55,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:10:55,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:10:55" (1/1) ... [2019-09-08 01:10:55,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eaf7a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:55, skipping insertion in model container [2019-09-08 01:10:55,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:10:55" (1/1) ... [2019-09-08 01:10:55,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:10:55,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:10:56,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:10:56,042 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:10:56,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:10:56,180 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:10:56,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56 WrapperNode [2019-09-08 01:10:56,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:10:56,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:10:56,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:10:56,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:10:56,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (1/1) ... [2019-09-08 01:10:56,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:10:56,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:10:56,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:10:56,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:10:56,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (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 01:10:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:10:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:10:56,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:10:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:10:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 01:10:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:10:56,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 01:10:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 01:10:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:10:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:10:56,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:10:56,602 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:10:56,602 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:10:56,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:10:56 BoogieIcfgContainer [2019-09-08 01:10:56,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:10:56,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:10:56,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:10:56,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:10:56,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:10:55" (1/3) ... [2019-09-08 01:10:56,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaa8da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:10:56, skipping insertion in model container [2019-09-08 01:10:56,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:56" (2/3) ... [2019-09-08 01:10:56,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaa8da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:10:56, skipping insertion in model container [2019-09-08 01:10:56,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:10:56" (3/3) ... [2019-09-08 01:10:56,613 INFO L109 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2019-09-08 01:10:56,627 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:10:56,636 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-08 01:10:56,667 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-08 01:10:56,733 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:10:56,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:10:56,733 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:10:56,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:10:56,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:10:56,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:10:56,734 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:10:56,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:10:56,735 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:10:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-09-08 01:10:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:10:56,761 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:10:56,762 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:10:56,764 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:10:56,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:10:56,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2113161621, now seen corresponding path program 1 times [2019-09-08 01:10:56,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:10:56,771 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:10:56,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:10:56,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:10:56,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:10:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:10:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:10:56,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:10:56,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 01:10:56,958 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 01:10:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 01:10:56,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-08 01:10:56,972 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-09-08 01:10:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:10:57,054 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2019-09-08 01:10:57,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:10:57,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-09-08 01:10:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:10:57,071 INFO L225 Difference]: With dead ends: 64 [2019-09-08 01:10:57,071 INFO L226 Difference]: Without dead ends: 52 [2019-09-08 01:10:57,075 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 01:10:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-09-08 01:10:57,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 36. [2019-09-08 01:10:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-08 01:10:57,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2019-09-08 01:10:57,119 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 17 [2019-09-08 01:10:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:10:57,120 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2019-09-08 01:10:57,120 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 01:10:57,120 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2019-09-08 01:10:57,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:10:57,121 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:10:57,122 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:10:57,122 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:10:57,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:10:57,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2118082726, now seen corresponding path program 1 times [2019-09-08 01:10:57,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:10:57,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:10:57,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:10:57,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:10:57,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:10:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:10:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:10:57,190 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:10:57,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:10:57 BoogieIcfgContainer [2019-09-08 01:10:57,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:10:57,231 INFO L168 Benchmark]: Toolchain (without parser) took 1432.31 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 87.7 MB in the beginning and 129.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,231 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.48 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 87.5 MB in the beginning and 176.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,233 INFO L168 Benchmark]: Boogie Preprocessor took 36.59 ms. Allocated memory is still 199.8 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,234 INFO L168 Benchmark]: RCFGBuilder took 385.96 ms. Allocated memory is still 199.8 MB. Free memory was 174.2 MB in the beginning and 157.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,235 INFO L168 Benchmark]: TraceAbstraction took 622.69 ms. Allocated memory is still 199.8 MB. Free memory was 157.5 MB in the beginning and 129.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:10:57,239 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 378.48 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 87.5 MB in the beginning and 176.5 MB in the end (delta: -89.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.59 ms. Allocated memory is still 199.8 MB. Free memory was 176.5 MB in the beginning and 174.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.96 ms. Allocated memory is still 199.8 MB. Free memory was 174.2 MB in the beginning and 157.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 622.69 ms. Allocated memory is still 199.8 MB. Free memory was 157.5 MB in the beginning and 129.1 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 53]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of to_real at line 36. Possible FailurePath: [L1] int __return_main; [L8] int __tmp_129_0; [L9] int __tmp_129_1; [L10] int __tmp_129_2; [L11] int __return_134; VAL [\old(__return_134)=4, \old(__return_main)=3, \old(__tmp_129_0)=7, \old(__tmp_129_1)=2, \old(__tmp_129_2)=6, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0] [L14] double main__E0; [L15] double main__E1; [L16] double main__S; [L17] int main__i; [L18] main__E1 = 0 [L19] main__S = 0 [L20] main__i = 0 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__i=0] [L21] COND TRUE main__i <= 1000000 [L23] main__E0 = __VERIFIER_nondet_double() [L24] int main____CPAchecker_TMP_0; VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=5, main__i=0] [L25] COND TRUE main__E0 >= -1.0 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=5, main__i=0] [L27] COND TRUE main__E0 <= 1.0 [L29] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main__E0=5, main__i=0] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L32] int main____CPAchecker_TMP_1; [L33] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L34] COND TRUE !(main____CPAchecker_TMP_1 == 0) [L36] main__S = 0 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=5, main__i=0] [L38] main__E1 = main__E0 [L39] int main____CPAchecker_TMP_2; VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=5, main__E1=5, main__i=0] [L40] COND FALSE !(main__S >= -10000.0) VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=5, main__E1=5, main__i=0] [L157] main____CPAchecker_TMP_2 = 0 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=5, main__E1=5, main__i=0] [L47] int __tmp_1; [L48] __tmp_1 = main____CPAchecker_TMP_2 [L49] int __VERIFIER_assert__cond; [L50] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=5, main__E1=5, main__i=0] [L51] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=5, main__E1=5, main__i=0] [L53] __VERIFIER_error() VAL [\old(__return_134)=0, \old(__tmp_129_0)=0, \old(__tmp_129_1)=0, \old(__tmp_129_2)=0, __return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=5, main__E1=5, main__i=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 38 locations, 2 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 27 SDslu, 96 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, 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, 1 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...