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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-tiling/mbpr4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:45,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:45,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:45,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:45,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:45,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:45,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:45,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:45,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:45,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:45,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:45,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:45,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:45,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:45,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:45,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:45,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:45,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:45,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:45,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:45,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:45,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:45,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:45,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:45,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:45,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:45,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:45,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:45,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:45,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:45,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:45,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:45,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:45,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:45,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:45,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:45,985 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 [2019-10-14 23:52:46,004 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:46,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:46,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:46,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:46,007 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:46,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:46,007 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:46,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:46,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:46,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:46,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:46,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:46,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:46,009 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:46,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:46,010 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:46,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:46,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:46,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:46,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:46,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:46,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:46,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:46,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:46,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:46,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:46,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:46,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:46,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-14 23:52:46,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:46,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:46,288 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:46,289 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:46,290 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:46,290 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mbpr4.c [2019-10-14 23:52:46,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f1fc7772/50cefe80ebb04343aa6b1b82b1f21718/FLAG95421ad70 [2019-10-14 23:52:46,805 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:46,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/mbpr4.c [2019-10-14 23:52:46,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f1fc7772/50cefe80ebb04343aa6b1b82b1f21718/FLAG95421ad70 [2019-10-14 23:52:47,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f1fc7772/50cefe80ebb04343aa6b1b82b1f21718 [2019-10-14 23:52:47,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:47,196 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:47,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:47,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:47,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:47,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d002693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47, skipping insertion in model container [2019-10-14 23:52:47,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,211 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:47,232 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:47,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:47,421 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:47,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:47,568 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:47,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47 WrapperNode [2019-10-14 23:52:47,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:47,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:47,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:47,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:47,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (1/1) ... [2019-10-14 23:52:47,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:47,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:47,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:47,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:47,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (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 [2019-10-14 23:52:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:47,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:47,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:47,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:47,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:48,097 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:48,097 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:52:48,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:48 BoogieIcfgContainer [2019-10-14 23:52:48,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:48,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:48,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:48,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:48,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:47" (1/3) ... [2019-10-14 23:52:48,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba37d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:48, skipping insertion in model container [2019-10-14 23:52:48,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:47" (2/3) ... [2019-10-14 23:52:48,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba37d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:48, skipping insertion in model container [2019-10-14 23:52:48,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:48" (3/3) ... [2019-10-14 23:52:48,106 INFO L109 eAbstractionObserver]: Analyzing ICFG mbpr4.c [2019-10-14 23:52:48,115 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:48,123 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:48,134 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:48,157 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:48,157 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:48,157 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:48,157 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:48,157 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:48,157 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:48,157 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:48,158 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:48,173 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-14 23:52:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:52:48,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,180 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1961398023, now seen corresponding path program 1 times [2019-10-14 23:52:48,193 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217554449] [2019-10-14 23:52:48,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,353 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217554449] [2019-10-14 23:52:48,354 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,354 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:48,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345437138] [2019-10-14 23:52:48,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:48,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:48,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:48,378 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-14 23:52:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:48,402 INFO L93 Difference]: Finished difference Result 78 states and 108 transitions. [2019-10-14 23:52:48,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:48,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-14 23:52:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:48,412 INFO L225 Difference]: With dead ends: 78 [2019-10-14 23:52:48,412 INFO L226 Difference]: Without dead ends: 39 [2019-10-14 23:52:48,416 INFO L600 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 [2019-10-14 23:52:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-14 23:52:48,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-14 23:52:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-14 23:52:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2019-10-14 23:52:48,457 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 22 [2019-10-14 23:52:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:48,458 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2019-10-14 23:52:48,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2019-10-14 23:52:48,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:52:48,460 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,460 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,460 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1084797805, now seen corresponding path program 1 times [2019-10-14 23:52:48,461 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990369422] [2019-10-14 23:52:48,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990369422] [2019-10-14 23:52:48,584 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:52:48,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52736855] [2019-10-14 23:52:48,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:52:48,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:52:48,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:52:48,587 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 5 states. [2019-10-14 23:52:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:48,635 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions. [2019-10-14 23:52:48,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:52:48,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-14 23:52:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:48,638 INFO L225 Difference]: With dead ends: 47 [2019-10-14 23:52:48,638 INFO L226 Difference]: Without dead ends: 45 [2019-10-14 23:52:48,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:48,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-14 23:52:48,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2019-10-14 23:52:48,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-14 23:52:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2019-10-14 23:52:48,648 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 22 [2019-10-14 23:52:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:48,649 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2019-10-14 23:52:48,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:52:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2019-10-14 23:52:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:52:48,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,650 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,651 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1082950763, now seen corresponding path program 1 times [2019-10-14 23:52:48,651 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411928887] [2019-10-14 23:52:48,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:48,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411928887] [2019-10-14 23:52:48,846 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:48,847 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:52:48,847 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84436163] [2019-10-14 23:52:48,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:48,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:48,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:48,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:48,849 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 4 states. [2019-10-14 23:52:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:48,974 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2019-10-14 23:52:48,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:48,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-14 23:52:48,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:48,978 INFO L225 Difference]: With dead ends: 80 [2019-10-14 23:52:48,978 INFO L226 Difference]: Without dead ends: 48 [2019-10-14 23:52:48,979 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-10-14 23:52:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2019-10-14 23:52:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-14 23:52:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2019-10-14 23:52:48,989 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 22 [2019-10-14 23:52:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:48,990 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2019-10-14 23:52:48,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2019-10-14 23:52:48,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-14 23:52:48,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:48,991 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:48,992 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:48,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:48,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1675538566, now seen corresponding path program 1 times [2019-10-14 23:52:48,993 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:48,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423560123] [2019-10-14 23:52:48,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,994 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:48,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423560123] [2019-10-14 23:52:49,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300989421] [2019-10-14 23:52:49,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:49,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:52:49,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:49,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,378 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:49,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:52:49,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:49,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [711238701] [2019-10-14 23:52:49,518 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-10-14 23:52:49,571 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:49,572 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:49,649 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:49,650 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 2. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 30 variables. [2019-10-14 23:52:49,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:49,655 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:49,704 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-14 23:52:49,705 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:49,719 INFO L553 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-10-14 23:52:49,719 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:49,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:49,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5, 5] total 10 [2019-10-14 23:52:49,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539977918] [2019-10-14 23:52:49,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:49,723 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:49,723 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:49,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:49,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:49,724 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 3 states. [2019-10-14 23:52:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:49,734 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2019-10-14 23:52:49,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:49,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-14 23:52:49,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:49,735 INFO L225 Difference]: With dead ends: 45 [2019-10-14 23:52:49,735 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:49,738 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:49,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-14 23:52:49,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:49,739 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:49,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:49,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:49,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:49,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:50,018 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,018 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:50,018 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,018 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,019 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) [2019-10-14 23:52:50,019 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:50,019 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:50,019 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 90) no Hoare annotation was computed. [2019-10-14 23:52:50,019 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 88) no Hoare annotation was computed. [2019-10-14 23:52:50,019 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 88) no Hoare annotation was computed. [2019-10-14 23:52:50,020 INFO L443 ceAbstractionStarter]: For program point L69-2(lines 69 82) no Hoare annotation was computed. [2019-10-14 23:52:50,020 INFO L439 ceAbstractionStarter]: At program point L69-3(lines 69 82) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,020 INFO L443 ceAbstractionStarter]: For program point L69-4(lines 69 82) no Hoare annotation was computed. [2019-10-14 23:52:50,020 INFO L443 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2019-10-14 23:52:50,020 INFO L439 ceAbstractionStarter]: At program point L86-2(line 86) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,020 INFO L443 ceAbstractionStarter]: For program point L86-3(line 86) no Hoare annotation was computed. [2019-10-14 23:52:50,021 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-14 23:52:50,021 INFO L443 ceAbstractionStarter]: For program point L54-2(lines 54 67) no Hoare annotation was computed. [2019-10-14 23:52:50,021 INFO L439 ceAbstractionStarter]: At program point L54-3(lines 54 67) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,021 INFO L443 ceAbstractionStarter]: For program point L54-4(lines 54 67) no Hoare annotation was computed. [2019-10-14 23:52:50,021 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 90) no Hoare annotation was computed. [2019-10-14 23:52:50,021 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 78) no Hoare annotation was computed. [2019-10-14 23:52:50,022 INFO L443 ceAbstractionStarter]: For program point L71-2(lines 71 78) no Hoare annotation was computed. [2019-10-14 23:52:50,022 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 90) the Hoare annotation is: (or (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,022 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 52) no Hoare annotation was computed. [2019-10-14 23:52:50,022 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 52) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,022 INFO L443 ceAbstractionStarter]: For program point L39-4(lines 39 52) no Hoare annotation was computed. [2019-10-14 23:52:50,023 INFO L443 ceAbstractionStarter]: For program point L56(lines 56 63) no Hoare annotation was computed. [2019-10-14 23:52:50,023 INFO L443 ceAbstractionStarter]: For program point L56-2(lines 56 63) no Hoare annotation was computed. [2019-10-14 23:52:50,023 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 37) no Hoare annotation was computed. [2019-10-14 23:52:50,023 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 37) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,023 INFO L443 ceAbstractionStarter]: For program point L24-4(lines 24 37) no Hoare annotation was computed. [2019-10-14 23:52:50,023 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 48) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 48) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 33) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L26-2(lines 26 33) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L84-2(lines 84 87) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L439 ceAbstractionStarter]: At program point L84-3(lines 84 87) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L84-4(lines 84 87) no Hoare annotation was computed. [2019-10-14 23:52:50,024 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,025 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:52:50,025 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,025 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,025 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,025 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:52:50,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:50 BoogieIcfgContainer [2019-10-14 23:52:50,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:50,064 INFO L168 Benchmark]: Toolchain (without parser) took 2867.29 ms. Allocated memory was 139.5 MB in the beginning and 234.9 MB in the end (delta: 95.4 MB). Free memory was 103.8 MB in the beginning and 148.5 MB in the end (delta: -44.8 MB). Peak memory consumption was 50.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,065 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:52:50,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.74 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.8 MB in the beginning and 180.8 MB in the end (delta: -77.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,066 INFO L168 Benchmark]: Boogie Preprocessor took 43.89 ms. Allocated memory is still 203.9 MB. Free memory was 180.8 MB in the beginning and 178.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,067 INFO L168 Benchmark]: RCFGBuilder took 485.51 ms. Allocated memory is still 203.9 MB. Free memory was 178.9 MB in the beginning and 157.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,068 INFO L168 Benchmark]: TraceAbstraction took 1961.76 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 157.1 MB in the beginning and 148.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:50,072 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.74 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 103.8 MB in the beginning and 180.8 MB in the end (delta: -77.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.89 ms. Allocated memory is still 203.9 MB. Free memory was 180.8 MB in the beginning and 178.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 485.51 ms. Allocated memory is still 203.9 MB. Free memory was 178.9 MB in the beginning and 157.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1961.76 ms. Allocated memory was 203.9 MB in the beginning and 234.9 MB in the end (delta: 30.9 MB). Free memory was 157.1 MB in the beginning and 148.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 84]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 142 SDtfs, 58 SDslu, 144 SDs, 0 SdLazy, 64 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 98 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 6928 SizeOfPredicates, 4 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 137, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.94, AVG_VARS_REMOVED_DURING_WEAKENING: 1.04, AVG_WEAKENED_CONJUNCTS: 0.64, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...