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/bitvector/jain_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 12:51:50,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 12:51:50,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 12:51:50,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 12:51:50,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 12:51:50,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 12:51:50,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 12:51:50,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 12:51:50,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 12:51:50,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 12:51:50,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 12:51:50,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 12:51:50,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 12:51:50,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 12:51:50,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 12:51:50,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 12:51:50,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 12:51:50,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 12:51:50,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 12:51:50,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 12:51:50,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 12:51:50,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 12:51:50,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 12:51:50,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 12:51:50,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 12:51:50,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 12:51:50,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 12:51:50,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 12:51:50,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 12:51:50,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 12:51:50,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 12:51:50,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 12:51:50,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 12:51:50,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 12:51:50,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 12:51:50,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 12:51:50,908 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 [2019-09-07 12:51:50,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 12:51:50,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 12:51:50,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 12:51:50,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 12:51:50,930 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 12:51:50,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 12:51:50,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 12:51:50,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 12:51:50,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 12:51:50,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 12:51:50,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 12:51:50,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 12:51:50,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 12:51:50,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 12:51:50,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 12:51:50,932 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 12:51:50,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 12:51:50,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 12:51:50,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 12:51:50,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 12:51:50,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 12:51:50,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 12:51:50,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 12:51:50,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 12:51:50,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 12:51:50,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 12:51:50,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 12:51:50,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 12:51:50,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 12:51:50,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 12:51:50,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 12:51:50,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 12:51:50,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 12:51:50,981 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 12:51:50,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_4-2.c [2019-09-07 12:51:51,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d6d1453/51429f49d4b34c369bc17dcc9db93ad2/FLAG33638ee83 [2019-09-07 12:51:51,454 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 12:51:51,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c [2019-09-07 12:51:51,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d6d1453/51429f49d4b34c369bc17dcc9db93ad2/FLAG33638ee83 [2019-09-07 12:51:51,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d6d1453/51429f49d4b34c369bc17dcc9db93ad2 [2019-09-07 12:51:51,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 12:51:51,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 12:51:51,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 12:51:51,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 12:51:51,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 12:51:51,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:51:51" (1/1) ... [2019-09-07 12:51:51,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e2020f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:51, skipping insertion in model container [2019-09-07 12:51:51,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:51:51" (1/1) ... [2019-09-07 12:51:51,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 12:51:51,841 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 12:51:51,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:51:51,977 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 12:51:51,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:51:52,004 INFO L192 MainTranslator]: Completed translation [2019-09-07 12:51:52,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52 WrapperNode [2019-09-07 12:51:52,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 12:51:52,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 12:51:52,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 12:51:52,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 12:51:52,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (1/1) ... [2019-09-07 12:51:52,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 12:51:52,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 12:51:52,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 12:51:52,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 12:51:52,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (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 [2019-09-07 12:51:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 12:51:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 12:51:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-07 12:51:52,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 12:51:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 12:51:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-07 12:51:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-07 12:51:52,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 12:51:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 12:51:52,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 12:51:52,313 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 12:51:52,313 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 12:51:52,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:51:52 BoogieIcfgContainer [2019-09-07 12:51:52,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 12:51:52,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 12:51:52,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 12:51:52,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 12:51:52,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 12:51:51" (1/3) ... [2019-09-07 12:51:52,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62acab6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:51:52, skipping insertion in model container [2019-09-07 12:51:52,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:51:52" (2/3) ... [2019-09-07 12:51:52,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62acab6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:51:52, skipping insertion in model container [2019-09-07 12:51:52,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:51:52" (3/3) ... [2019-09-07 12:51:52,321 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_4-2.c [2019-09-07 12:51:52,330 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 12:51:52,336 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 12:51:52,352 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 12:51:52,381 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 12:51:52,382 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 12:51:52,382 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 12:51:52,382 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 12:51:52,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 12:51:52,383 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 12:51:52,383 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 12:51:52,383 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 12:51:52,383 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 12:51:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-07 12:51:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-07 12:51:52,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:51:52,404 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 12:51:52,405 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:51:52,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:51:52,410 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2019-09-07 12:51:52,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:51:52,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:51:52,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:51:52,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:51:52,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:51:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:51:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 12:51:52,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 12:51:52,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 12:51:52,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 12:51:52,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 12:51:52,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-07 12:51:52,695 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-07 12:51:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:51:52,811 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2019-09-07 12:51:52,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 12:51:52,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-09-07 12:51:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:51:52,821 INFO L225 Difference]: With dead ends: 33 [2019-09-07 12:51:52,821 INFO L226 Difference]: Without dead ends: 20 [2019-09-07 12:51:52,827 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-07 12:51:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-09-07 12:51:52,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-09-07 12:51:52,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-07 12:51:52,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-09-07 12:51:52,874 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-09-07 12:51:52,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:51:52,875 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-09-07 12:51:52,875 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 12:51:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-09-07 12:51:52,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-07 12:51:52,877 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:51:52,878 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 12:51:52,878 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:51:52,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:51:52,880 INFO L82 PathProgramCache]: Analyzing trace with hash 327764987, now seen corresponding path program 1 times [2019-09-07 12:51:52,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:51:52,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:51:52,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:51:52,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:51:52,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:51:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:51:55,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 12:51:55,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 12:51:55,137 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 12:51:55,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:51:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:51:55,193 WARN L254 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-07 12:51:55,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 12:51:55,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-07 12:51:55,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-07 12:51:55,354 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 12:51:55,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2019-09-07 12:51:55,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-07 12:51:55,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-07 12:51:55,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2019-09-07 12:51:55,358 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 12 states. [2019-09-07 12:51:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:51:57,467 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-09-07 12:51:57,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-07 12:51:57,480 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2019-09-07 12:51:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:51:57,481 INFO L225 Difference]: With dead ends: 19 [2019-09-07 12:51:57,481 INFO L226 Difference]: Without dead ends: 0 [2019-09-07 12:51:57,483 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2019-09-07 12:51:57,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-07 12:51:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-07 12:51:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-07 12:51:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-07 12:51:57,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-09-07 12:51:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:51:57,485 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-07 12:51:57,485 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-07 12:51:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-07 12:51:57,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-07 12:51:57,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-07 12:51:57,564 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-07 12:51:57,564 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-07 12:51:57,564 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-07 12:51:57,564 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-07 12:51:57,565 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-07 12:51:57,565 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-07 12:51:57,566 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2019-09-07 12:51:57,566 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2019-09-07 12:51:57,566 INFO L439 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: (and (= 0 (mod main_~y~0 4)) (= 0 (mod main_~z~0 8)) (= 0 (mod (* 3 main_~x~0) (- 4)))) [2019-09-07 12:51:57,567 INFO L439 ceAbstractionStarter]: At program point L24-1(lines 18 25) the Hoare annotation is: (and (= 0 (mod main_~y~0 4)) (= 0 (mod main_~z~0 8)) (= 0 (mod (* 3 main_~x~0) (- 4)))) [2019-09-07 12:51:57,567 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-09-07 12:51:57,567 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 27) no Hoare annotation was computed. [2019-09-07 12:51:57,567 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-09-07 12:51:57,567 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-09-07 12:51:57,567 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-09-07 12:51:57,567 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-09-07 12:51:57,568 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-09-07 12:51:57,568 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-09-07 12:51:57,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 12:51:57 BoogieIcfgContainer [2019-09-07 12:51:57,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-07 12:51:57,588 INFO L168 Benchmark]: Toolchain (without parser) took 5773.63 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 87.9 MB in the beginning and 96.8 MB in the end (delta: -8.9 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2019-09-07 12:51:57,589 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 132.1 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-07 12:51:57,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.13 ms. Allocated memory is still 132.1 MB. Free memory was 87.9 MB in the beginning and 78.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-07 12:51:57,591 INFO L168 Benchmark]: Boogie Preprocessor took 100.62 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.6 MB in the beginning and 177.7 MB in the end (delta: -99.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2019-09-07 12:51:57,592 INFO L168 Benchmark]: RCFGBuilder took 208.77 ms. Allocated memory is still 198.7 MB. Free memory was 177.7 MB in the beginning and 165.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-07 12:51:57,593 INFO L168 Benchmark]: TraceAbstraction took 5267.56 ms. Allocated memory is still 198.7 MB. Free memory was 165.2 MB in the beginning and 96.8 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. [2019-09-07 12:51:57,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 132.1 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 193.13 ms. Allocated memory is still 132.1 MB. Free memory was 87.9 MB in the beginning and 78.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.62 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.6 MB in the beginning and 177.7 MB in the end (delta: -99.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.77 ms. Allocated memory is still 198.7 MB. Free memory was 177.7 MB in the beginning and 165.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5267.56 ms. Allocated memory is still 198.7 MB. Free memory was 165.2 MB in the beginning and 96.8 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (0 == y % 4 && 0 == z % 8) && 0 == 3 * x % -4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 13 SDslu, 87 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 41 HoareAnnotationTreeSize, 9 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 3075 SizeOfPredicates, 3 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...