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/mbpr5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:48,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:48,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:48,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:48,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:48,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:48,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:48,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:48,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:48,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:48,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:48,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:48,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:48,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:48,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:48,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:48,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:48,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:48,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:48,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:48,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:48,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:48,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:48,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:48,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:52:48,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:52:48,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:52:48,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:52:48,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:52:48,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:52:48,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:48,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:48,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:48,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:48,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:48,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:48,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:48,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:48,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:48,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:48,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:48,769 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 23:52:48,795 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:48,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:48,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:48,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:48,797 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:48,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:48,798 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:48,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:48,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:48,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:48,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:48,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:48,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:48,799 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:48,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:48,799 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:48,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:48,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:48,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:48,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:48,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:48,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:48,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:48,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:48,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:48,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:48,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:48,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:48,802 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 23:52:49,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:49,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:49,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:49,088 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:49,089 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:49,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mbpr5.c [2019-10-14 23:52:49,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034841ade/bc3e2c0372614a57875f08cb054385fe/FLAGc46706ce0 [2019-10-14 23:52:49,622 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:49,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/mbpr5.c [2019-10-14 23:52:49,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034841ade/bc3e2c0372614a57875f08cb054385fe/FLAGc46706ce0 [2019-10-14 23:52:49,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034841ade/bc3e2c0372614a57875f08cb054385fe [2019-10-14 23:52:49,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:49,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:49,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:49,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:49,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:49,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:49" (1/1) ... [2019-10-14 23:52:49,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2b4d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:49, skipping insertion in model container [2019-10-14 23:52:49,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:49" (1/1) ... [2019-10-14 23:52:49,980 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:50,018 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:50,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:50,291 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:50,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:50,453 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:50,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50 WrapperNode [2019-10-14 23:52:50,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:50,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:50,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:50,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:50,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (1/1) ... [2019-10-14 23:52:50,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:50,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:50,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:50,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:50,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (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 23:52:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:52:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:51,027 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:51,028 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-14 23:52:51,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:51 BoogieIcfgContainer [2019-10-14 23:52:51,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:51,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:51,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:51,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:51,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:49" (1/3) ... [2019-10-14 23:52:51,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67778023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:51, skipping insertion in model container [2019-10-14 23:52:51,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:50" (2/3) ... [2019-10-14 23:52:51,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67778023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:51, skipping insertion in model container [2019-10-14 23:52:51,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:51" (3/3) ... [2019-10-14 23:52:51,037 INFO L109 eAbstractionObserver]: Analyzing ICFG mbpr5.c [2019-10-14 23:52:51,044 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:51,052 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:51,063 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:51,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:51,092 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:51,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:51,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:51,093 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:51,093 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:51,093 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:51,093 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-10-14 23:52:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:52:51,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:51,115 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] [2019-10-14 23:52:51,116 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1208064678, now seen corresponding path program 1 times [2019-10-14 23:52:51,133 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:51,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549772104] [2019-10-14 23:52:51,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:51,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549772104] [2019-10-14 23:52:51,298 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:51,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:51,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208660363] [2019-10-14 23:52:51,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:51,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:51,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:51,324 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2019-10-14 23:52:51,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:51,353 INFO L93 Difference]: Finished difference Result 88 states and 124 transitions. [2019-10-14 23:52:51,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:51,354 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-10-14 23:52:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:51,364 INFO L225 Difference]: With dead ends: 88 [2019-10-14 23:52:51,364 INFO L226 Difference]: Without dead ends: 44 [2019-10-14 23:52:51,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-10-14 23:52:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-10-14 23:52:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-10-14 23:52:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2019-10-14 23:52:51,422 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 24 [2019-10-14 23:52:51,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:51,423 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2019-10-14 23:52:51,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:51,423 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2019-10-14 23:52:51,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:52:51,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:51,425 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] [2019-10-14 23:52:51,425 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:51,426 INFO L82 PathProgramCache]: Analyzing trace with hash 625586285, now seen corresponding path program 1 times [2019-10-14 23:52:51,426 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:51,427 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391457472] [2019-10-14 23:52:51,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,427 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:51,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:51,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391457472] [2019-10-14 23:52:51,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:51,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:52:51,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717848207] [2019-10-14 23:52:51,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:52:51,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:51,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:52:51,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:52:51,580 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand 5 states. [2019-10-14 23:52:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:51,662 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2019-10-14 23:52:51,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:52:51,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-14 23:52:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:51,667 INFO L225 Difference]: With dead ends: 52 [2019-10-14 23:52:51,667 INFO L226 Difference]: Without dead ends: 50 [2019-10-14 23:52:51,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:52:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-10-14 23:52:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2019-10-14 23:52:51,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-14 23:52:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2019-10-14 23:52:51,687 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 24 [2019-10-14 23:52:51,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:51,687 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2019-10-14 23:52:51,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:52:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2019-10-14 23:52:51,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-14 23:52:51,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:51,691 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] [2019-10-14 23:52:51,691 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:51,692 INFO L82 PathProgramCache]: Analyzing trace with hash 627433327, now seen corresponding path program 1 times [2019-10-14 23:52:51,694 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:51,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985345898] [2019-10-14 23:52:51,694 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:51,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:51,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985345898] [2019-10-14 23:52:51,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:51,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:52:51,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072368672] [2019-10-14 23:52:51,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:52:51,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:51,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:52:51,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:51,944 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 4 states. [2019-10-14 23:52:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:52,075 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2019-10-14 23:52:52,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:52:52,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-10-14 23:52:52,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:52,079 INFO L225 Difference]: With dead ends: 90 [2019-10-14 23:52:52,079 INFO L226 Difference]: Without dead ends: 53 [2019-10-14 23:52:52,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:52:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-10-14 23:52:52,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2019-10-14 23:52:52,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-10-14 23:52:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2019-10-14 23:52:52,088 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 24 [2019-10-14 23:52:52,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:52,088 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2019-10-14 23:52:52,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:52:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2019-10-14 23:52:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-14 23:52:52,090 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:52,090 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] [2019-10-14 23:52:52,090 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:52,091 INFO L82 PathProgramCache]: Analyzing trace with hash 506953876, now seen corresponding path program 1 times [2019-10-14 23:52:52,091 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:52,091 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457225653] [2019-10-14 23:52:52,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:52,092 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:52,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:52,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457225653] [2019-10-14 23:52:52,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866345361] [2019-10-14 23:52:52,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:52,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:52:52,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:52,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:52,347 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:52,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-14 23:52:52,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:52,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:52:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:52,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1652184033] [2019-10-14 23:52:52,471 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 29 [2019-10-14 23:52:52,529 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:52,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:52,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:52,634 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 2. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 32 variables. [2019-10-14 23:52:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:52,637 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:52,699 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-14 23:52:52,699 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:52,703 INFO L553 sIntCurrentIteration]: We unified 27 AI predicates to 27 [2019-10-14 23:52:52,704 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:52,704 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:52,704 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5, 5] total 10 [2019-10-14 23:52:52,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674177310] [2019-10-14 23:52:52,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:52,709 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:52,709 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:52,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:52,710 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 3 states. [2019-10-14 23:52:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:52,716 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-10-14 23:52:52,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:52,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-14 23:52:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:52,717 INFO L225 Difference]: With dead ends: 50 [2019-10-14 23:52:52,717 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:52,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 23:52:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:52,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:52,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:52,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-10-14 23:52:52,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:52,720 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:52,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:52,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:52,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:52,925 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:52,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:53,005 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:53,005 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:53,005 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:53,005 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:53,006 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) [2019-10-14 23:52:53,006 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:53,006 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:53,006 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 34) no Hoare annotation was computed. [2019-10-14 23:52:53,006 INFO L443 ceAbstractionStarter]: For program point L27-2(lines 27 34) no Hoare annotation was computed. [2019-10-14 23:52:53,006 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 111) no Hoare annotation was computed. [2019-10-14 23:52:53,007 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 109) no Hoare annotation was computed. [2019-10-14 23:52:53,007 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 109) no Hoare annotation was computed. [2019-10-14 23:52:53,007 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 111) no Hoare annotation was computed. [2019-10-14 23:52:53,007 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 111) the Hoare annotation is: (or (and (<= ~CELLCOUNT~0 2147483647) (<= 0 (+ ~CELLCOUNT~0 2147483648))) (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,007 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-14 23:52:53,008 INFO L443 ceAbstractionStarter]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2019-10-14 23:52:53,008 INFO L439 ceAbstractionStarter]: At program point L105-3(lines 105 108) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,008 INFO L443 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2019-10-14 23:52:53,008 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 103) no Hoare annotation was computed. [2019-10-14 23:52:53,008 INFO L439 ceAbstractionStarter]: At program point L89-3(lines 89 103) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,008 INFO L443 ceAbstractionStarter]: For program point L89-4(lines 89 103) no Hoare annotation was computed. [2019-10-14 23:52:53,009 INFO L443 ceAbstractionStarter]: For program point L73-2(lines 73 87) no Hoare annotation was computed. [2019-10-14 23:52:53,009 INFO L439 ceAbstractionStarter]: At program point L73-3(lines 73 87) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,009 INFO L443 ceAbstractionStarter]: For program point L73-4(lines 73 87) no Hoare annotation was computed. [2019-10-14 23:52:53,009 INFO L443 ceAbstractionStarter]: For program point L57-2(lines 57 71) no Hoare annotation was computed. [2019-10-14 23:52:53,009 INFO L439 ceAbstractionStarter]: At program point L57-3(lines 57 71) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,009 INFO L443 ceAbstractionStarter]: For program point L57-4(lines 57 71) no Hoare annotation was computed. [2019-10-14 23:52:53,009 INFO L443 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2019-10-14 23:52:53,010 INFO L439 ceAbstractionStarter]: At program point L107-2(line 107) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,010 INFO L443 ceAbstractionStarter]: For program point L107-3(line 107) no Hoare annotation was computed. [2019-10-14 23:52:53,010 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 55) no Hoare annotation was computed. [2019-10-14 23:52:53,010 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 55) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,010 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 55) no Hoare annotation was computed. [2019-10-14 23:52:53,010 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 98) no Hoare annotation was computed. [2019-10-14 23:52:53,011 INFO L443 ceAbstractionStarter]: For program point L91-2(lines 91 98) no Hoare annotation was computed. [2019-10-14 23:52:53,011 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 39) no Hoare annotation was computed. [2019-10-14 23:52:53,011 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 39) the Hoare annotation is: (or (not (<= |old(~CELLCOUNT~0)| 2147483647)) (not (<= 0 (+ |old(~CELLCOUNT~0)| 2147483648)))) [2019-10-14 23:52:53,011 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 39) no Hoare annotation was computed. [2019-10-14 23:52:53,011 INFO L443 ceAbstractionStarter]: For program point L75(lines 75 82) no Hoare annotation was computed. [2019-10-14 23:52:53,011 INFO L443 ceAbstractionStarter]: For program point L75-2(lines 75 82) no Hoare annotation was computed. [2019-10-14 23:52:53,012 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2019-10-14 23:52:53,012 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 66) no Hoare annotation was computed. [2019-10-14 23:52:53,012 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 50) no Hoare annotation was computed. [2019-10-14 23:52:53,012 INFO L443 ceAbstractionStarter]: For program point L43-2(lines 43 50) no Hoare annotation was computed. [2019-10-14 23:52:53,012 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:53,013 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-14 23:52:53,013 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-14 23:52:53,013 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-14 23:52:53,013 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-14 23:52:53,013 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-14 23:52:53,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:53 BoogieIcfgContainer [2019-10-14 23:52:53,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:53,031 INFO L168 Benchmark]: Toolchain (without parser) took 3067.12 ms. Allocated memory was 144.7 MB in the beginning and 233.3 MB in the end (delta: 88.6 MB). Free memory was 102.7 MB in the beginning and 137.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,033 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.97 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 102.5 MB in the beginning and 179.5 MB in the end (delta: -77.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,037 INFO L168 Benchmark]: Boogie Preprocessor took 56.87 ms. Allocated memory is still 202.9 MB. Free memory was 179.5 MB in the beginning and 176.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,043 INFO L168 Benchmark]: RCFGBuilder took 517.22 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 153.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,044 INFO L168 Benchmark]: TraceAbstraction took 1995.86 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 153.1 MB in the beginning and 137.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:53,054 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 491.97 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 102.5 MB in the beginning and 179.5 MB in the end (delta: -77.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.87 ms. Allocated memory is still 202.9 MB. Free memory was 179.5 MB in the beginning and 176.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 517.22 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 153.1 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1995.86 ms. Allocated memory was 202.9 MB in the beginning and 233.3 MB in the end (delta: 30.4 MB). Free memory was 153.1 MB in the beginning and 137.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 45.6 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: 25]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 89]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: !(\old(CELLCOUNT) <= 2147483647) || !(0 <= \old(CELLCOUNT) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 50 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 65 SDslu, 165 SDs, 0 SdLazy, 73 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 16 NumberOfFragments, 109 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 7767 SizeOfPredicates, 4 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 171, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9382716049382716, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0740740740740742, AVG_WEAKENED_CONJUNCTS: 0.5925925925925926, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...