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/tcpy.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:57,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:57,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:57,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:57,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:57,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:57,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:57,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:57,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:57,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:57,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:57,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:57,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:57,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:57,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:57,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:57,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:57,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:57,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:57,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:57,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:57,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:57,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:57,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:57,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:52:57,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:52:57,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:52:57,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:52:57,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:52:57,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:52:57,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:57,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:57,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:57,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:57,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:57,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:57,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:57,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:57,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:57,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:57,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:57,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:52:57,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:57,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:57,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:57,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:57,734 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:57,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:57,734 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:57,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:57,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:57,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:57,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:57,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:57,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:57,742 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:57,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:57,742 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:57,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:57,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:57,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:57,743 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:57,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:57,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:57,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:57,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:57,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:57,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:57,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:57,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:57,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-14 23:52:58,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:58,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:58,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:58,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:58,040 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:58,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/tcpy.c [2019-10-14 23:52:58,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cabfa5ff/fffb382dedf14c869292b2c572ff5126/FLAG19a8593ca [2019-10-14 23:52:58,581 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:58,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/tcpy.c [2019-10-14 23:52:58,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cabfa5ff/fffb382dedf14c869292b2c572ff5126/FLAG19a8593ca [2019-10-14 23:52:58,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cabfa5ff/fffb382dedf14c869292b2c572ff5126 [2019-10-14 23:52:58,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:58,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:58,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:58,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:58,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:58,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae7e711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:58, skipping insertion in model container [2019-10-14 23:52:58,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:58" (1/1) ... [2019-10-14 23:52:58,979 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:59,001 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:59,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:59,264 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:59,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:59,318 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:59,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59 WrapperNode [2019-10-14 23:52:59,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:59,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:59,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:59,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:59,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (1/1) ... [2019-10-14 23:52:59,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:59,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:59,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:59,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:59,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (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 [2019-10-14 23:52:59,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:59,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:59,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:59,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:59,514 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:52:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:52:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:59,762 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:59,763 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-14 23:52:59,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:59 BoogieIcfgContainer [2019-10-14 23:52:59,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:59,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:59,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:59,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:59,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:58" (1/3) ... [2019-10-14 23:52:59,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd39cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:59, skipping insertion in model container [2019-10-14 23:52:59,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:59" (2/3) ... [2019-10-14 23:52:59,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd39cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:59, skipping insertion in model container [2019-10-14 23:52:59,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:59" (3/3) ... [2019-10-14 23:52:59,773 INFO L109 eAbstractionObserver]: Analyzing ICFG tcpy.c [2019-10-14 23:52:59,783 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:59,791 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:59,809 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:59,872 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:59,872 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:59,872 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:59,873 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:59,873 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:59,873 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:59,873 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:59,873 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-14 23:52:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:52:59,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:59,905 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:59,907 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:59,913 INFO L82 PathProgramCache]: Analyzing trace with hash 941892528, now seen corresponding path program 1 times [2019-10-14 23:52:59,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:59,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945264791] [2019-10-14 23:52:59,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:59,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:53:00,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945264791] [2019-10-14 23:53:00,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:53:00,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:53:00,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821562871] [2019-10-14 23:53:00,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:53:00,085 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:00,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:53:00,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:53:00,103 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-14 23:53:00,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:00,125 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2019-10-14 23:53:00,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:53:00,127 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-14 23:53:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:00,134 INFO L225 Difference]: With dead ends: 47 [2019-10-14 23:53:00,134 INFO L226 Difference]: Without dead ends: 23 [2019-10-14 23:53:00,138 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:53:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-14 23:53:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-14 23:53:00,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-14 23:53:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-10-14 23:53:00,176 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2019-10-14 23:53:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:00,176 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-10-14 23:53:00,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:53:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-10-14 23:53:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:53:00,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:53:00,178 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:53:00,179 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:53:00,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:00,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2128337372, now seen corresponding path program 1 times [2019-10-14 23:53:00,180 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:53:00,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172591585] [2019-10-14 23:53:00,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:53:00,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172591585] [2019-10-14 23:53:00,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:53:00,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:53:00,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120317948] [2019-10-14 23:53:00,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:53:00,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:53:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:53:00,288 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 3 states. [2019-10-14 23:53:00,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:00,343 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-10-14 23:53:00,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:53:00,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-14 23:53:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:00,345 INFO L225 Difference]: With dead ends: 39 [2019-10-14 23:53:00,345 INFO L226 Difference]: Without dead ends: 25 [2019-10-14 23:53:00,347 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 [2019-10-14 23:53:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-14 23:53:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-10-14 23:53:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-14 23:53:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-10-14 23:53:00,354 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 16 [2019-10-14 23:53:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:00,354 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-10-14 23:53:00,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:53:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-10-14 23:53:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-14 23:53:00,356 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:53:00,356 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:53:00,356 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:53:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:00,357 INFO L82 PathProgramCache]: Analyzing trace with hash 823833890, now seen corresponding path program 1 times [2019-10-14 23:53:00,357 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:53:00,357 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548952206] [2019-10-14 23:53:00,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548952206] [2019-10-14 23:53:00,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:53:00,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:53:00,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719073526] [2019-10-14 23:53:00,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:53:00,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:00,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:53:00,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:00,491 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2019-10-14 23:53:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:00,584 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2019-10-14 23:53:00,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:53:00,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-10-14 23:53:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:00,588 INFO L225 Difference]: With dead ends: 42 [2019-10-14 23:53:00,588 INFO L226 Difference]: Without dead ends: 31 [2019-10-14 23:53:00,589 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 [2019-10-14 23:53:00,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-14 23:53:00,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2019-10-14 23:53:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-14 23:53:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2019-10-14 23:53:00,606 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 18 [2019-10-14 23:53:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:00,607 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2019-10-14 23:53:00,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:53:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2019-10-14 23:53:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-14 23:53:00,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:53:00,609 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] [2019-10-14 23:53:00,610 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:53:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:00,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1371679936, now seen corresponding path program 1 times [2019-10-14 23:53:00,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:53:00,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350518079] [2019-10-14 23:53:00,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:53:00,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:53:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350518079] [2019-10-14 23:53:00,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481690358] [2019-10-14 23:53:00,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:53:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:53:00,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:53:00,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:53:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,878 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:53:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:53:00,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [836548710] [2019-10-14 23:53:00,946 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-10-14 23:53:00,992 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:53:00,992 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:53:01,080 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:53:01,082 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 33 variables. [2019-10-14 23:53:01,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:53:01,086 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:53:01,149 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-10-14 23:53:01,149 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:53:01,159 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-10-14 23:53:01,160 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:53:01,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:53:01,161 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 9 [2019-10-14 23:53:01,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583588240] [2019-10-14 23:53:01,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:53:01,162 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:53:01,163 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:53:01,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:53:01,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:01,163 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 4 states. [2019-10-14 23:53:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:53:01,167 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-14 23:53:01,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:53:01,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-14 23:53:01,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:53:01,168 INFO L225 Difference]: With dead ends: 25 [2019-10-14 23:53:01,168 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:53:01,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:53:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:53:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:53:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:53:01,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:53:01,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-14 23:53:01,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:53:01,170 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:53:01,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:53:01,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:53:01,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:53:01,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:53:01,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:53:01,473 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,473 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:53:01,473 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,474 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,474 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647) (= ~MAX~0 100000)) [2019-10-14 23:53:01,474 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:53:01,474 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:53:01,474 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 38) no Hoare annotation was computed. [2019-10-14 23:53:01,474 INFO L439 ceAbstractionStarter]: At program point L35-3(lines 35 38) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,475 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 41) no Hoare annotation was computed. [2019-10-14 23:53:01,475 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 41) no Hoare annotation was computed. [2019-10-14 23:53:01,475 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 11 41) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648))) (and (<= 0 (+ ~SIZE~0 2147483648)) (<= ~SIZE~0 2147483647))) [2019-10-14 23:53:01,475 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2019-10-14 23:53:01,475 INFO L439 ceAbstractionStarter]: At program point L28-3(lines 28 32) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,476 INFO L443 ceAbstractionStarter]: For program point L28-4(lines 28 32) no Hoare annotation was computed. [2019-10-14 23:53:01,476 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2019-10-14 23:53:01,476 INFO L439 ceAbstractionStarter]: At program point L20-3(lines 20 23) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,476 INFO L443 ceAbstractionStarter]: For program point L20-4(lines 15 39) no Hoare annotation was computed. [2019-10-14 23:53:01,477 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 39) no Hoare annotation was computed. [2019-10-14 23:53:01,477 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 39) no Hoare annotation was computed. [2019-10-14 23:53:01,477 INFO L439 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (or (not (<= |old(~SIZE~0)| 2147483647)) (not (= 100000 ~MAX~0)) (not (<= 0 (+ |old(~SIZE~0)| 2147483648)))) [2019-10-14 23:53:01,477 INFO L443 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2019-10-14 23:53:01,477 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,478 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:53:01,478 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,478 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,478 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,479 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:53:01,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:53:01 BoogieIcfgContainer [2019-10-14 23:53:01,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:53:01,512 INFO L168 Benchmark]: Toolchain (without parser) took 2553.77 ms. Allocated memory was 146.8 MB in the beginning and 234.4 MB in the end (delta: 87.6 MB). Free memory was 104.0 MB in the beginning and 186.2 MB in the end (delta: -82.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,513 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.86 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 93.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,515 INFO L168 Benchmark]: Boogie Preprocessor took 134.43 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 181.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,516 INFO L168 Benchmark]: RCFGBuilder took 309.96 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 165.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,517 INFO L168 Benchmark]: TraceAbstraction took 1744.04 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 186.2 MB in the end (delta: -21.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:53:01,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.86 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 93.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.43 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 181.6 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.96 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 165.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1744.04 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 186.2 MB in the end (delta: -21.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (!(\old(SIZE) <= 2147483647) || !(100000 == MAX)) || !(0 <= \old(SIZE) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 28 SDslu, 23 SDs, 0 SdLazy, 36 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 99 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 3058 SizeOfPredicates, 3 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 142, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9342105263157895, AVG_VARS_REMOVED_DURING_WEAKENING: 1.263157894736842, AVG_WEAKENED_CONJUNCTS: 1.1578947368421053, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...