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/revcpyswp2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:58,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:58,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:58,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:58,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:58,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:58,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:58,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:58,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:58,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:58,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:58,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:58,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:58,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:58,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:58,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:58,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:58,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:58,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:58,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:58,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:58,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:58,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:58,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:58,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:53:58,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:53:58,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:53:58,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:53:58,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:53:58,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:53:58,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:58,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:58,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:58,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:58,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:58,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:58,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:58,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:58,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:58,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:58,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:58,087 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 19:53:58,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:58,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:58,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:58,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:58,112 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:58,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:58,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:58,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:58,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:58,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:58,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:58,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:58,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:58,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:58,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:58,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:58,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:58,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:58,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:58,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:58,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:58,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:58,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:58,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:58,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:58,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:58,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:58,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:58,118 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 19:53:58,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:58,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:58,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:58,484 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:58,485 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:58,486 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/revcpyswp2.c [2019-10-13 19:53:58,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30570026b/7120b40e2aed4ed2be79b262e6dd924b/FLAG9323345dd [2019-10-13 19:53:59,007 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:59,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/revcpyswp2.c [2019-10-13 19:53:59,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30570026b/7120b40e2aed4ed2be79b262e6dd924b/FLAG9323345dd [2019-10-13 19:53:59,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30570026b/7120b40e2aed4ed2be79b262e6dd924b [2019-10-13 19:53:59,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:59,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:59,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:59,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:59,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:59,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2859015c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59, skipping insertion in model container [2019-10-13 19:53:59,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,421 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:59,442 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:59,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:59,675 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:59,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:59,822 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:59,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59 WrapperNode [2019-10-13 19:53:59,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:59,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:59,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:59,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:59,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (1/1) ... [2019-10-13 19:53:59,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:59,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:59,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:59,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:59,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (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 19:53:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:59,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:59,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:53:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:54:00,292 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:54:00,292 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:54:00,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:00 BoogieIcfgContainer [2019-10-13 19:54:00,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:54:00,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:54:00,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:54:00,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:54:00,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:59" (1/3) ... [2019-10-13 19:54:00,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783eae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:00, skipping insertion in model container [2019-10-13 19:54:00,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:59" (2/3) ... [2019-10-13 19:54:00,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783eae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:00, skipping insertion in model container [2019-10-13 19:54:00,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:00" (3/3) ... [2019-10-13 19:54:00,306 INFO L109 eAbstractionObserver]: Analyzing ICFG revcpyswp2.c [2019-10-13 19:54:00,315 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:54:00,322 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:54:00,332 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:54:00,354 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:54:00,354 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:54:00,354 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:54:00,355 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:54:00,355 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:54:00,355 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:54:00,355 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:54:00,355 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:54:00,372 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-13 19:54:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 19:54:00,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:54:00,379 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:54:00,381 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:54:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:54:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash -285010775, now seen corresponding path program 1 times [2019-10-13 19:54:00,395 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:54:00,396 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524592493] [2019-10-13 19:54:00,396 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,396 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:54:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:54:00,542 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 19:54:00,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524592493] [2019-10-13 19:54:00,544 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:54:00,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:54:00,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672096201] [2019-10-13 19:54:00,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:54:00,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:54:00,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:54:00,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:54:00,575 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-13 19:54:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:54:00,613 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2019-10-13 19:54:00,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:54:00,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-13 19:54:00,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:54:00,621 INFO L225 Difference]: With dead ends: 59 [2019-10-13 19:54:00,622 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 19:54:00,625 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 [2019-10-13 19:54:00,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 19:54:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-13 19:54:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-13 19:54:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-10-13 19:54:00,661 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 20 [2019-10-13 19:54:00,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:54:00,661 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-10-13 19:54:00,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:54:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-10-13 19:54:00,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 19:54:00,663 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:54:00,663 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:54:00,664 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:54:00,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:54:00,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1627005719, now seen corresponding path program 1 times [2019-10-13 19:54:00,665 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:54:00,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070999730] [2019-10-13 19:54:00,665 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,666 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:54:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:54:00,766 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 19:54:00,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070999730] [2019-10-13 19:54:00,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:54:00,768 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:54:00,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858762387] [2019-10-13 19:54:00,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:54:00,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:54:00,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:54:00,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:54:00,771 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2019-10-13 19:54:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:54:00,866 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2019-10-13 19:54:00,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:54:00,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-13 19:54:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:54:00,869 INFO L225 Difference]: With dead ends: 51 [2019-10-13 19:54:00,869 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 19:54:00,870 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:54:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 19:54:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-10-13 19:54:00,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-13 19:54:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-10-13 19:54:00,882 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 20 [2019-10-13 19:54:00,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:54:00,883 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-10-13 19:54:00,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:54:00,884 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-10-13 19:54:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 19:54:00,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:54:00,888 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:54:00,888 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:54:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:54:00,890 INFO L82 PathProgramCache]: Analyzing trace with hash -381446827, now seen corresponding path program 1 times [2019-10-13 19:54:00,891 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:54:00,891 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455292226] [2019-10-13 19:54:00,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:00,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:54:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:54:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:54:01,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455292226] [2019-10-13 19:54:01,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:54:01,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:54:01,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429301905] [2019-10-13 19:54:01,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:54:01,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:54:01,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:54:01,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:54:01,018 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 4 states. [2019-10-13 19:54:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:54:01,136 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2019-10-13 19:54:01,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:54:01,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-10-13 19:54:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:54:01,140 INFO L225 Difference]: With dead ends: 58 [2019-10-13 19:54:01,141 INFO L226 Difference]: Without dead ends: 41 [2019-10-13 19:54:01,141 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:54:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-13 19:54:01,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2019-10-13 19:54:01,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-13 19:54:01,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2019-10-13 19:54:01,158 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2019-10-13 19:54:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:54:01,159 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2019-10-13 19:54:01,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:54:01,159 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2019-10-13 19:54:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-13 19:54:01,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:54:01,162 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:54:01,162 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:54:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:54:01,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1677394545, now seen corresponding path program 1 times [2019-10-13 19:54:01,163 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:54:01,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535226658] [2019-10-13 19:54:01,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:01,164 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:54:01,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:54:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:54:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:54:01,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535226658] [2019-10-13 19:54:01,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724222054] [2019-10-13 19:54:01,275 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 [2019-10-13 19:54:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:54:01,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 19:54:01,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:54:01,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:54:01,442 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:54:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:54:01,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1397918671] [2019-10-13 19:54:01,515 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 29 [2019-10-13 19:54:01,549 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:54:01,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:54:01,616 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:54:01,618 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 49 variables. [2019-10-13 19:54:01,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:54:01,622 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:54:01,663 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-13 19:54:01,664 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:54:01,678 INFO L553 sIntCurrentIteration]: We unified 27 AI predicates to 27 [2019-10-13 19:54:01,678 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:54:01,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:54:01,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 9 [2019-10-13 19:54:01,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173631819] [2019-10-13 19:54:01,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:54:01,681 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:54:01,681 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:54:01,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:54:01,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:54:01,682 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2019-10-13 19:54:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:54:01,686 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2019-10-13 19:54:01,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:54:01,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-13 19:54:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:54:01,687 INFO L225 Difference]: With dead ends: 33 [2019-10-13 19:54:01,687 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:54:01,687 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:54:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:54:01,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:54:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:54:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:54:01,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-10-13 19:54:01,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:54:01,689 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:54:01,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:54:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:54:01,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:54:01,890 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:54:01,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:54:02,037 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:54:02,038 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:54:02,038 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:54:02,038 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:54:02,038 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)) [2019-10-13 19:54:02,038 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:54:02,038 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:54:02,039 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2019-10-13 19:54:02,039 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 35) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,039 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2019-10-13 19:54:02,040 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 61) no Hoare annotation was computed. [2019-10-13 19:54:02,040 INFO L439 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,040 INFO L443 ceAbstractionStarter]: For program point L56-1(line 56) no Hoare annotation was computed. [2019-10-13 19:54:02,041 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 59) no Hoare annotation was computed. [2019-10-13 19:54:02,041 INFO L443 ceAbstractionStarter]: For program point L15-1(lines 15 59) no Hoare annotation was computed. [2019-10-13 19:54:02,041 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-10-13 19:54:02,041 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,041 INFO L443 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2019-10-13 19:54:02,041 INFO L443 ceAbstractionStarter]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2019-10-13 19:54:02,042 INFO L439 ceAbstractionStarter]: At program point L54-3(lines 54 58) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,042 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 61) no Hoare annotation was computed. [2019-10-13 19:54:02,042 INFO L443 ceAbstractionStarter]: For program point L46-2(lines 46 51) no Hoare annotation was computed. [2019-10-13 19:54:02,042 INFO L439 ceAbstractionStarter]: At program point L46-3(lines 46 51) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,042 INFO L443 ceAbstractionStarter]: For program point L46-4(lines 46 51) no Hoare annotation was computed. [2019-10-13 19:54:02,042 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2019-10-13 19:54:02,043 INFO L439 ceAbstractionStarter]: At program point L38-3(lines 38 43) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-13 19:54:02,043 INFO L443 ceAbstractionStarter]: For program point L38-4(lines 38 43) no Hoare annotation was computed. [2019-10-13 19:54:02,043 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 12 61) 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))) [2019-10-13 19:54:02,043 INFO L443 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2019-10-13 19:54:02,043 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-13 19:54:02,044 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2019-10-13 19:54:02,044 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2019-10-13 19:54:02,044 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-13 19:54:02,044 INFO L443 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-10-13 19:54:02,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:54:02 BoogieIcfgContainer [2019-10-13 19:54:02,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:54:02,073 INFO L168 Benchmark]: Toolchain (without parser) took 2667.61 ms. Allocated memory was 137.4 MB in the beginning and 233.8 MB in the end (delta: 96.5 MB). Free memory was 102.2 MB in the beginning and 173.1 MB in the end (delta: -70.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,076 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.95 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 180.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,079 INFO L168 Benchmark]: Boogie Preprocessor took 41.85 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 178.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,086 INFO L168 Benchmark]: RCFGBuilder took 429.13 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 158.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,090 INFO L168 Benchmark]: TraceAbstraction took 1771.01 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 158.9 MB in the beginning and 173.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:54:02,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 416.95 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 180.1 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.85 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 178.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 429.13 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 158.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1771.01 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 158.9 MB in the beginning and 173.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 46]: 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) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 95 SDtfs, 31 SDslu, 27 SDs, 0 SdLazy, 57 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 129 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 5000 SizeOfPredicates, 3 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 10/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 108, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9120370370370371, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5925925925925926, AVG_WEAKENED_CONJUNCTS: 0.8148148148148148, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...