java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:17:45,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:17:45,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:17:45,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:17:45,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:17:45,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:17:45,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:17:45,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:17:45,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:17:45,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:17:45,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:17:45,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:17:45,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:17:45,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:17:45,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:17:45,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:17:45,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:17:45,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:17:45,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:17:45,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:17:45,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:17:45,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:17:45,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:17:45,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:17:45,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:17:45,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:17:45,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:17:45,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:17:45,378 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 [2019-10-02 11:17:45,392 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:17:45,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:17:45,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:17:45,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:17:45,394 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:17:45,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:17:45,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:17:45,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:17:45,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:17:45,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:17:45,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:17:45,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:17:45,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:17:45,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:17:45,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:17:45,396 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:17:45,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:17:45,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:17:45,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:17:45,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:17:45,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:17:45,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:17:45,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:17:45,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:17:45,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:17:45,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:17:45,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:17:45,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:17:45,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:17:45,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:17:45,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:17:45,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:17:45,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:17:45,445 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:17:45,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-10-02 11:17:45,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36be6f307/cc94995cfdb7485982d48843eecdab7e/FLAGf17fdcbbb [2019-10-02 11:17:45,951 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:17:45,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2019-10-02 11:17:45,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36be6f307/cc94995cfdb7485982d48843eecdab7e/FLAGf17fdcbbb [2019-10-02 11:17:46,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36be6f307/cc94995cfdb7485982d48843eecdab7e [2019-10-02 11:17:46,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:17:46,350 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:17:46,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:17:46,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:17:46,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:17:46,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7278d8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46, skipping insertion in model container [2019-10-02 11:17:46,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,368 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:17:46,387 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:17:46,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:17:46,563 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:17:46,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:17:46,591 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:17:46,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46 WrapperNode [2019-10-02 11:17:46,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:17:46,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:17:46,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:17:46,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:17:46,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (1/1) ... [2019-10-02 11:17:46,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:17:46,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:17:46,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:17:46,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:17:46,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (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 [2019-10-02 11:17:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:17:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:17:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:17:46,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:17:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:17:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 11:17:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:17:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 11:17:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:17:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:17:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:17:46,939 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:17:46,939 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:17:46,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:17:46 BoogieIcfgContainer [2019-10-02 11:17:46,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:17:46,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:17:46,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:17:46,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:17:46,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:17:46" (1/3) ... [2019-10-02 11:17:46,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:17:46, skipping insertion in model container [2019-10-02 11:17:46,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:17:46" (2/3) ... [2019-10-02 11:17:46,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:17:46, skipping insertion in model container [2019-10-02 11:17:46,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:17:46" (3/3) ... [2019-10-02 11:17:46,949 INFO L109 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2019-10-02 11:17:46,959 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:17:46,973 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:17:47,018 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:17:47,086 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:17:47,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:17:47,087 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:17:47,087 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:17:47,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:17:47,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:17:47,088 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:17:47,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:17:47,088 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:17:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-02 11:17:47,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-02 11:17:47,121 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:17:47,122 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:17:47,126 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:17:47,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:17:47,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1158151592, now seen corresponding path program 1 times [2019-10-02 11:17:47,132 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:17:47,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:17:47,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:17:47,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:17:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:17:47,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:17:47,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 11:17:47,328 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 11:17:47,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 11:17:47,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:17:47,341 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-02 11:17:47,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:17:47,441 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2019-10-02 11:17:47,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 11:17:47,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-02 11:17:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:17:47,450 INFO L225 Difference]: With dead ends: 44 [2019-10-02 11:17:47,451 INFO L226 Difference]: Without dead ends: 21 [2019-10-02 11:17:47,454 INFO L640 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 [2019-10-02 11:17:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-02 11:17:47,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-02 11:17:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-02 11:17:47,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-10-02 11:17:47,487 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2019-10-02 11:17:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:17:47,487 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-10-02 11:17:47,487 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 11:17:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-10-02 11:17:47,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-02 11:17:47,489 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:17:47,489 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:17:47,489 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:17:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:17:47,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1937413030, now seen corresponding path program 1 times [2019-10-02 11:17:47,490 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:17:47,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:17:47,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:17:47,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:17:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:17:47,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:17:47,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 11:17:47,584 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 11:17:47,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 11:17:47,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:17:47,585 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 6 states. [2019-10-02 11:17:47,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:17:47,710 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-10-02 11:17:47,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 11:17:47,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-02 11:17:47,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:17:47,714 INFO L225 Difference]: With dead ends: 31 [2019-10-02 11:17:47,714 INFO L226 Difference]: Without dead ends: 29 [2019-10-02 11:17:47,716 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 11:17:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-02 11:17:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-10-02 11:17:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-02 11:17:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-10-02 11:17:47,743 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 17 [2019-10-02 11:17:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:17:47,744 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-10-02 11:17:47,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 11:17:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-10-02 11:17:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-02 11:17:47,746 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:17:47,746 INFO L411 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:17:47,747 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:17:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:17:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 441803270, now seen corresponding path program 1 times [2019-10-02 11:17:47,747 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:17:47,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:17:47,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:17:47,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:17:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-02 11:17:47,845 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:17:47,845 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-10-02 11:17:47,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:17:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:17:47,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-02 11:17:47,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:17:48,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 11:17:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-02 11:17:48,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:17:48,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 13 [2019-10-02 11:17:48,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 11:17:48,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 11:17:48,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-10-02 11:17:48,079 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 13 states. [2019-10-02 11:17:48,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:17:48,308 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2019-10-02 11:17:48,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 11:17:48,309 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2019-10-02 11:17:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:17:48,311 INFO L225 Difference]: With dead ends: 43 [2019-10-02 11:17:48,311 INFO L226 Difference]: Without dead ends: 41 [2019-10-02 11:17:48,313 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2019-10-02 11:17:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-02 11:17:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-10-02 11:17:48,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-02 11:17:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2019-10-02 11:17:48,323 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 29 [2019-10-02 11:17:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:17:48,323 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2019-10-02 11:17:48,323 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 11:17:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2019-10-02 11:17:48,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-02 11:17:48,325 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:17:48,325 INFO L411 BasicCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:17:48,325 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:17:48,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:17:48,326 INFO L82 PathProgramCache]: Analyzing trace with hash 713924710, now seen corresponding path program 2 times [2019-10-02 11:17:48,326 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:17:48,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:17:48,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:48,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:17:48,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:17:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:17:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-02 11:17:48,447 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:17:48,447 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-10-02 11:17:48,466 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:17:48,490 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 11:17:48,491 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:17:48,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-02 11:17:48,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:17:48,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 11:17:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 11:17:48,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:17:48,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-10-02 11:17:48,541 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 11:17:48,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 11:17:48,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-02 11:17:48,542 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand 8 states. [2019-10-02 11:17:48,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:17:48,599 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-10-02 11:17:48,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 11:17:48,602 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-10-02 11:17:48,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:17:48,602 INFO L225 Difference]: With dead ends: 40 [2019-10-02 11:17:48,603 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:17:48,603 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-02 11:17:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:17:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:17:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:17:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:17:48,604 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-02 11:17:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:17:48,605 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:17:48,605 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 11:17:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:17:48,605 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:17:48,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:17:48,674 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-02 11:17:48,674 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:17:48,674 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:17:48,674 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 11:17:48,674 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:17:48,675 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:17:48,675 INFO L446 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-10-02 11:17:48,675 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2019-10-02 11:17:48,675 INFO L443 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2019-10-02 11:17:48,675 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2019-10-02 11:17:48,676 INFO L439 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2019-10-02 11:17:48,676 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2019-10-02 11:17:48,676 INFO L439 ceAbstractionStarter]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 1 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0)) [2019-10-02 11:17:48,676 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-10-02 11:17:48,676 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-10-02 11:17:48,676 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2019-10-02 11:17:48,677 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-02 11:17:48,677 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-02 11:17:48,677 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-02 11:17:48,677 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-02 11:17:48,677 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-02 11:17:48,678 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-02 11:17:48,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:17:48 BoogieIcfgContainer [2019-10-02 11:17:48,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:17:48,694 INFO L168 Benchmark]: Toolchain (without parser) took 2343.39 ms. Allocated memory was 140.5 MB in the beginning and 225.4 MB in the end (delta: 84.9 MB). Free memory was 88.4 MB in the beginning and 154.9 MB in the end (delta: -66.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,695 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.53 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,697 INFO L168 Benchmark]: Boogie Preprocessor took 101.70 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 78.7 MB in the beginning and 177.7 MB in the end (delta: -99.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,698 INFO L168 Benchmark]: RCFGBuilder took 246.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,699 INFO L168 Benchmark]: TraceAbstraction took 1749.56 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 165.4 MB in the beginning and 154.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:17:48,703 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 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.53 ms. Allocated memory is still 140.5 MB. Free memory was 88.0 MB in the beginning and 78.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.70 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 78.7 MB in the beginning and 177.7 MB in the end (delta: -99.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.66 ms. Allocated memory is still 199.8 MB. Free memory was 177.7 MB in the beginning and 166.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1749.56 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 165.4 MB in the beginning and 154.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 36.3 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: 24]: Loop Invariant Derived loop invariant: (glob2_pathlim_off <= MAXPATHLEN && 1 <= MAXPATHLEN) && 0 <= glob2_p_off - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 6 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 41 SDslu, 227 SDs, 0 SdLazy, 192 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 42 HoareAnnotationTreeSize, 16 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 10311 SizeOfPredicates, 10 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 143/164 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...