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/loops/veris.c_NetBSD-libc_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:07:21,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:07:21,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:07:21,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:07:21,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:07:21,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:07:21,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:07:21,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:07:21,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:07:21,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:07:21,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:07:21,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:07:21,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:07:21,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:07:21,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:07:21,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:07:21,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:07:21,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:07:21,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:07:21,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:07:21,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:07:21,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:07:22,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:07:22,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:07:22,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:07:22,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:07:22,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:07:22,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:07:22,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:07:22,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:07:22,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:07:22,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:07:22,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:07:22,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:07:22,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:07:22,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:07:22,014 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 [2019-10-13 21:07:22,028 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:07:22,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:07:22,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:07:22,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:07:22,030 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:07:22,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:07:22,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:07:22,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:07:22,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:07:22,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:07:22,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:07:22,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:07:22,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:07:22,032 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:07:22,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:07:22,032 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:07:22,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:07:22,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:07:22,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:07:22,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:07:22,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:07:22,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:07:22,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:07:22,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:07:22,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:07:22,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:07:22,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:07:22,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:07:22,035 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 [2019-10-13 21:07:22,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:07:22,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:07:22,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:07:22,391 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:07:22,391 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:07:22,392 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2019-10-13 21:07:22,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa44c289/7e12a6abfaac441abcba684a48ba751b/FLAG271bcaa6d [2019-10-13 21:07:22,912 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:07:22,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i [2019-10-13 21:07:22,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa44c289/7e12a6abfaac441abcba684a48ba751b/FLAG271bcaa6d [2019-10-13 21:07:23,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa44c289/7e12a6abfaac441abcba684a48ba751b [2019-10-13 21:07:23,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:07:23,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:07:23,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:07:23,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:07:23,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:07:23,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4caf3c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23, skipping insertion in model container [2019-10-13 21:07:23,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,307 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:07:23,324 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:07:23,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:07:23,506 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:07:23,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:07:23,535 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:07:23,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23 WrapperNode [2019-10-13 21:07:23,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:07:23,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:07:23,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:07:23,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:07:23,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (1/1) ... [2019-10-13 21:07:23,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:07:23,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:07:23,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:07:23,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:07:23,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (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 [2019-10-13 21:07:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:07:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:07:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:07:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2019-10-13 21:07:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:07:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:07:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:07:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:07:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:07:23,930 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:07:23,930 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:07:23,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:07:23 BoogieIcfgContainer [2019-10-13 21:07:23,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:07:23,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:07:23,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:07:23,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:07:23,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:07:23" (1/3) ... [2019-10-13 21:07:23,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9ee036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:07:23, skipping insertion in model container [2019-10-13 21:07:23,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:23" (2/3) ... [2019-10-13 21:07:23,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9ee036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:07:23, skipping insertion in model container [2019-10-13 21:07:23,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:07:23" (3/3) ... [2019-10-13 21:07:23,940 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2019-10-13 21:07:23,951 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:07:23,968 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:07:23,990 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:07:24,036 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:07:24,036 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:07:24,036 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:07:24,037 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:07:24,037 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:07:24,037 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:07:24,037 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:07:24,037 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:07:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-13 21:07:24,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:07:24,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:07:24,072 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:07:24,074 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:07:24,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:07:24,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2019-10-13 21:07:24,090 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:07:24,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607857143] [2019-10-13 21:07:24,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:24,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:24,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:07:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:07:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:07:24,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607857143] [2019-10-13 21:07:24,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:07:24,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:07:24,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994062822] [2019-10-13 21:07:24,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:07:24,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:07:24,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:07:24,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:07:24,447 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2019-10-13 21:07:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:07:24,661 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-10-13 21:07:24,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:07:24,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-10-13 21:07:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:07:24,671 INFO L225 Difference]: With dead ends: 42 [2019-10-13 21:07:24,672 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:07:24,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:07:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:07:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:07:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:07:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:07:24,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-13 21:07:24,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:07:24,706 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:07:24,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:07:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:07:24,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:07:24,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:07:24,836 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:07:24,837 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:07:24,837 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:24,837 INFO L446 ceAbstractionStarter]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2019-10-13 21:07:24,838 INFO L443 ceAbstractionStarter]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2019-10-13 21:07:24,838 INFO L439 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset))) [2019-10-13 21:07:24,838 INFO L443 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-10-13 21:07:24,838 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-10-13 21:07:24,839 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (and (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (not (<= |glob2_#in~pathlim.offset| ~tmp~0.offset))) [2019-10-13 21:07:24,839 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2019-10-13 21:07:24,839 INFO L443 ceAbstractionStarter]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2019-10-13 21:07:24,839 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:24,839 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:07:24,840 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:07:24,840 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:07:24,840 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2019-10-13 21:07:24,840 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2019-10-13 21:07:24,840 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2019-10-13 21:07:24,840 INFO L439 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset ~tmp~0.offset)) [2019-10-13 21:07:24,841 INFO L443 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2019-10-13 21:07:24,841 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 21:07:24,841 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 21:07:24,841 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:24,841 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 21:07:24,842 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 21:07:24,842 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:24,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:07:24 BoogieIcfgContainer [2019-10-13 21:07:24,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:07:24,868 INFO L168 Benchmark]: Toolchain (without parser) took 1575.23 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 112.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,870 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.55 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,875 INFO L168 Benchmark]: Boogie Preprocessor took 116.69 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.7 MB in the beginning and 179.4 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,876 INFO L168 Benchmark]: RCFGBuilder took 279.12 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 165.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,878 INFO L168 Benchmark]: TraceAbstraction took 930.58 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 112.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:24,890 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.55 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.69 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.7 MB in the beginning and 179.4 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.12 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 165.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 930.58 ms. Allocated memory is still 201.9 MB. Free memory was 165.0 MB in the beginning and 112.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((pathlim <= tmp && tmp == p) || !(tmp == pathbuf)) || !(pathlim <= tmp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 14 SDtfs, 17 SDslu, 61 SDs, 0 SdLazy, 64 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 48 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...