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/pnr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:50,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:50,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:50,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:50,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:50,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:50,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:50,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:50,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:50,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:50,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:50,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:50,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:50,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:50,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:50,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:50,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:50,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:50,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:50,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:50,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:50,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:50,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:50,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:50,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:50,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:50,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:50,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:50,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:50,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:50,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:50,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:50,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:50,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:50,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:50,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:50,757 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 23:52:50,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:50,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:50,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:50,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:50,773 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:50,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:50,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:50,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:50,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:50,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:50,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:50,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:50,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:50,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:50,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:50,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:50,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:50,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:50,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:50,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:50,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:50,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:50,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:50,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:50,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:50,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:50,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:50,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:50,778 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 23:52:51,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:51,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:51,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:51,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:51,085 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:51,085 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/pnr5.c [2019-10-14 23:52:51,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/962aae8b4/4568dcbe45134ac9b7b162bc7bfb591f/FLAG215492657 [2019-10-14 23:52:51,678 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:51,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/pnr5.c [2019-10-14 23:52:51,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/962aae8b4/4568dcbe45134ac9b7b162bc7bfb591f/FLAG215492657 [2019-10-14 23:52:52,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/962aae8b4/4568dcbe45134ac9b7b162bc7bfb591f [2019-10-14 23:52:52,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:52,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:52,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:52,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:52,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:52,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c0a3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52, skipping insertion in model container [2019-10-14 23:52:52,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,029 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:52,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:52,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:52,272 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:52,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:52,403 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:52,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52 WrapperNode [2019-10-14 23:52:52,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:52,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:52,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:52,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:52,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (1/1) ... [2019-10-14 23:52:52,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:52,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:52,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:52,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:52,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (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 [2019-10-14 23:52:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2019-10-14 23:52:52,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:52:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2019-10-14 23:52:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:52:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:52,862 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:52,863 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 23:52:52,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:52 BoogieIcfgContainer [2019-10-14 23:52:52,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:52,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:52,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:52,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:52,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:52" (1/3) ... [2019-10-14 23:52:52,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cf9167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:52, skipping insertion in model container [2019-10-14 23:52:52,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:52" (2/3) ... [2019-10-14 23:52:52,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cf9167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:52, skipping insertion in model container [2019-10-14 23:52:52,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:52" (3/3) ... [2019-10-14 23:52:52,874 INFO L109 eAbstractionObserver]: Analyzing ICFG pnr5.c [2019-10-14 23:52:52,883 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:52,890 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:52,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:52,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:52,926 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:52,926 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:52,926 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:52,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:52,927 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:52,927 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:52,927 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-10-14 23:52:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:52,948 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:52,949 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:52,951 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:52,956 INFO L82 PathProgramCache]: Analyzing trace with hash -973608197, now seen corresponding path program 1 times [2019-10-14 23:52:52,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:52,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690764828] [2019-10-14 23:52:52,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:52,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:52,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:53,106 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 23:52:53,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690764828] [2019-10-14 23:52:53,108 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:53,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:53,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330228425] [2019-10-14 23:52:53,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:53,115 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:53,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:53,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:53,134 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-10-14 23:52:53,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:53,163 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2019-10-14 23:52:53,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:53,165 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-14 23:52:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:53,174 INFO L225 Difference]: With dead ends: 60 [2019-10-14 23:52:53,174 INFO L226 Difference]: Without dead ends: 39 [2019-10-14 23:52:53,177 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 23:52:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-14 23:52:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-14 23:52:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-14 23:52:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-10-14 23:52:53,219 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 15 [2019-10-14 23:52:53,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:53,220 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-10-14 23:52:53,220 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-10-14 23:52:53,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:52:53,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:53,222 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:53,223 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:53,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:53,224 INFO L82 PathProgramCache]: Analyzing trace with hash 2038399118, now seen corresponding path program 1 times [2019-10-14 23:52:53,224 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:53,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276132174] [2019-10-14 23:52:53,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:53,225 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:53,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:53,478 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 23:52:53,479 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276132174] [2019-10-14 23:52:53,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:53,480 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:52:53,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059867575] [2019-10-14 23:52:53,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:53,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:53,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:53,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:53,483 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 4 states. [2019-10-14 23:52:53,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:53,681 INFO L93 Difference]: Finished difference Result 67 states and 88 transitions. [2019-10-14 23:52:53,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:53,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-14 23:52:53,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:53,684 INFO L225 Difference]: With dead ends: 67 [2019-10-14 23:52:53,686 INFO L226 Difference]: Without dead ends: 56 [2019-10-14 23:52:53,687 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-10-14 23:52:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 40. [2019-10-14 23:52:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-14 23:52:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2019-10-14 23:52:53,719 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 15 [2019-10-14 23:52:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:53,719 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2019-10-14 23:52:53,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2019-10-14 23:52:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 23:52:53,723 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:53,724 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:53,725 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:53,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1405014836, now seen corresponding path program 1 times [2019-10-14 23:52:53,726 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:53,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408655207] [2019-10-14 23:52:53,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:53,728 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:53,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:54,197 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-14 23:52:54,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408655207] [2019-10-14 23:52:54,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454667106] [2019-10-14 23:52:54,199 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 23:52:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:54,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-14 23:52:54,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:54,452 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-10-14 23:52:54,453 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,461 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,462 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,462 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:17 [2019-10-14 23:52:54,507 INFO L341 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2019-10-14 23:52:54,508 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2019-10-14 23:52:54,509 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,519 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,520 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,520 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:17 [2019-10-14 23:52:54,544 INFO L341 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2019-10-14 23:52:54,545 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2019-10-14 23:52:54,547 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,555 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,556 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,556 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:17 [2019-10-14 23:52:54,588 INFO L341 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2019-10-14 23:52:54,589 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 29 [2019-10-14 23:52:54,590 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,598 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,599 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,599 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:17 [2019-10-14 23:52:54,622 INFO L341 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2019-10-14 23:52:54,623 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2019-10-14 23:52:54,623 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,631 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,632 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:8 [2019-10-14 23:52:54,670 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-10-14 23:52:54,671 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,673 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,674 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,674 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2019-10-14 23:52:54,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:54,718 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-14 23:52:54,719 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:54,827 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2019-10-14 23:52:54,834 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2019-10-14 23:52:54,835 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,837 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,838 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:52:54,840 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:52:54,840 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-14 23:52:54,841 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:15, output treesize:8 [2019-10-14 23:52:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-14 23:52:54,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [513397021] [2019-10-14 23:52:54,875 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 48 [2019-10-14 23:52:54,927 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:54,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:54,998 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:55,002 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 32 variables. [2019-10-14 23:52:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:55,007 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:55,055 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-14 23:52:55,055 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:55,092 INFO L553 sIntCurrentIteration]: We unified 46 AI predicates to 46 [2019-10-14 23:52:55,093 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:55,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:55,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 9, 8] total 19 [2019-10-14 23:52:55,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918005410] [2019-10-14 23:52:55,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:55,097 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:55,097 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:55,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:55,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:55,098 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 4 states. [2019-10-14 23:52:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:55,108 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2019-10-14 23:52:55,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:55,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2019-10-14 23:52:55,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:55,111 INFO L225 Difference]: With dead ends: 40 [2019-10-14 23:52:55,111 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:55,112 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 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 23:52:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:55,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2019-10-14 23:52:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:55,114 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:55,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:55,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:55,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:55,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:55,452 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:55,452 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:55,453 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:55,453 INFO L446 ceAbstractionStarter]: At program point ReadFromPortENTRY(lines 7 11) the Hoare annotation is: true [2019-10-14 23:52:55,453 INFO L443 ceAbstractionStarter]: For program point ReadFromPortFINAL(lines 7 11) no Hoare annotation was computed. [2019-10-14 23:52:55,453 INFO L443 ceAbstractionStarter]: For program point ReadFromPortEXIT(lines 7 11) no Hoare annotation was computed. [2019-10-14 23:52:55,453 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:55,454 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647) (= ~MAX~0 100000)) [2019-10-14 23:52:55,454 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:55,455 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:55,455 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 71) no Hoare annotation was computed. [2019-10-14 23:52:55,455 INFO L439 ceAbstractionStarter]: At program point L64-2(lines 64 71) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,456 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 82) no Hoare annotation was computed. [2019-10-14 23:52:55,456 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 82) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,456 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 82) no Hoare annotation was computed. [2019-10-14 23:52:55,457 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 90) no Hoare annotation was computed. [2019-10-14 23:52:55,457 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 51) no Hoare annotation was computed. [2019-10-14 23:52:55,457 INFO L439 ceAbstractionStarter]: At program point L44-2(lines 44 51) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,457 INFO L443 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2019-10-14 23:52:55,457 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-10-14 23:52:55,458 INFO L439 ceAbstractionStarter]: At program point L86(line 86) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,458 INFO L443 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2019-10-14 23:52:55,458 INFO L443 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2019-10-14 23:52:55,458 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 88) no Hoare annotation was computed. [2019-10-14 23:52:55,458 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 88) no Hoare annotation was computed. [2019-10-14 23:52:55,458 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 81) no Hoare annotation was computed. [2019-10-14 23:52:55,459 INFO L439 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,459 INFO L443 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2019-10-14 23:52:55,459 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 61) no Hoare annotation was computed. [2019-10-14 23:52:55,459 INFO L439 ceAbstractionStarter]: At program point L54-2(lines 54 61) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,460 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 90) no Hoare annotation was computed. [2019-10-14 23:52:55,461 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 41) no Hoare annotation was computed. [2019-10-14 23:52:55,461 INFO L439 ceAbstractionStarter]: At program point L34-2(lines 34 41) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,463 INFO L443 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2019-10-14 23:52:55,467 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 90) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648))) (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647))) [2019-10-14 23:52:55,467 INFO L443 ceAbstractionStarter]: For program point L84-2(lines 84 87) no Hoare annotation was computed. [2019-10-14 23:52:55,467 INFO L439 ceAbstractionStarter]: At program point L84-3(lines 84 87) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:52:55,468 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-14 23:52:55,468 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:55,468 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:52:55,468 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:52:55,468 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:52:55,469 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:55,469 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:52:55,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:55 BoogieIcfgContainer [2019-10-14 23:52:55,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:55,503 INFO L168 Benchmark]: Toolchain (without parser) took 3490.59 ms. Allocated memory was 145.2 MB in the beginning and 234.9 MB in the end (delta: 89.7 MB). Free memory was 103.1 MB in the beginning and 89.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:55,506 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:52:55,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.00 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 179.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:55,508 INFO L168 Benchmark]: Boogie Preprocessor took 40.39 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 177.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:55,509 INFO L168 Benchmark]: RCFGBuilder took 419.70 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 158.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:55,511 INFO L168 Benchmark]: TraceAbstraction took 2633.89 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 157.8 MB in the beginning and 89.4 MB in the end (delta: 68.4 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:55,520 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 392.00 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 179.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.39 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 177.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 419.70 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 158.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2633.89 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 157.8 MB in the beginning and 89.4 MB in the end (delta: 68.4 MB). Peak memory consumption was 101.5 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(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 5, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 96 SDtfs, 83 SDslu, 18 SDs, 0 SdLazy, 51 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 20 PreInvPairs, 20 NumberOfFragments, 160 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 39000 SizeOfPredicates, 23 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 90/93 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 132, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9755434782608695, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8478260869565217, AVG_WEAKENED_CONJUNCTS: 0.4782608695652174, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...