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-crafted/bAnd5.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:51:37,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:51:37,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:51:37,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:51:37,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:51:37,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:51:37,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:51:37,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:51:37,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:51:37,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:51:37,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:51:37,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:51:37,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:51:37,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:51:37,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:51:37,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:51:37,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:51:37,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:51:37,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:51:37,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:51:37,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:51:37,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:51:37,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:51:37,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:51:37,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:51:37,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:51:37,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:51:37,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:51:37,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:51:37,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:51:37,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:51:37,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:51:37,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:51:37,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:51:37,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:51:37,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:51:37,746 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 23:51:37,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:51:37,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:51:37,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:51:37,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:51:37,770 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:51:37,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:51:37,770 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:51:37,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:51:37,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:51:37,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:51:37,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:51:37,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:51:37,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:51:37,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:51:37,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:51:37,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:51:37,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:51:37,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:51:37,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:51:37,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:51:37,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:51:37,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:51:37,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:51:37,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:51:37,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:51:37,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:51:37,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:51:37,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:51:37,776 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 23:51:38,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:51:38,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:51:38,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:51:38,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:51:38,072 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:51:38,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/bAnd5.i [2019-10-14 23:51:38,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3be57b9/59b63675700b47dcbf846f63925eaefc/FLAGc03ec7937 [2019-10-14 23:51:38,617 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:51:38,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/bAnd5.i [2019-10-14 23:51:38,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3be57b9/59b63675700b47dcbf846f63925eaefc/FLAGc03ec7937 [2019-10-14 23:51:39,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3be57b9/59b63675700b47dcbf846f63925eaefc [2019-10-14 23:51:39,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:51:39,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:51:39,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:51:39,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:51:39,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:51:39,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57118955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39, skipping insertion in model container [2019-10-14 23:51:39,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,054 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:51:39,076 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:51:39,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:51:39,288 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:51:39,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:51:39,421 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:51:39,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39 WrapperNode [2019-10-14 23:51:39,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:51:39,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:51:39,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:51:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:51:39,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (1/1) ... [2019-10-14 23:51:39,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:51:39,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:51:39,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:51:39,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:51:39,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (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 23:51:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:51:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:51:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bAnd [2019-10-14 23:51:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:51:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:51:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:51:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure bAnd [2019-10-14 23:51:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:51:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:51:39,861 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:51:39,862 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-14 23:51:39,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:51:39 BoogieIcfgContainer [2019-10-14 23:51:39,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:51:39,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:51:39,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:51:39,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:51:39,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:51:39" (1/3) ... [2019-10-14 23:51:39,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef33fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:51:39, skipping insertion in model container [2019-10-14 23:51:39,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:51:39" (2/3) ... [2019-10-14 23:51:39,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef33fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:51:39, skipping insertion in model container [2019-10-14 23:51:39,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:51:39" (3/3) ... [2019-10-14 23:51:39,887 INFO L109 eAbstractionObserver]: Analyzing ICFG bAnd5.i [2019-10-14 23:51:39,900 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:51:39,911 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:51:39,923 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:51:39,948 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:51:39,949 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:51:39,949 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:51:39,949 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:51:39,950 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:51:39,950 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:51:39,950 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:51:39,950 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:51:39,966 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-14 23:51:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-14 23:51:39,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:39,974 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:51:39,976 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:39,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:39,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1089041636, now seen corresponding path program 1 times [2019-10-14 23:51:39,990 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:51:39,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214516545] [2019-10-14 23:51:39,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:39,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:39,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:51:40,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214516545] [2019-10-14 23:51:40,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:40,161 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:51:40,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538633738] [2019-10-14 23:51:40,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:51:40,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:51:40,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:51:40,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:51:40,187 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-10-14 23:51:40,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:40,216 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2019-10-14 23:51:40,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:51:40,217 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 33 [2019-10-14 23:51:40,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:40,227 INFO L225 Difference]: With dead ends: 57 [2019-10-14 23:51:40,227 INFO L226 Difference]: Without dead ends: 27 [2019-10-14 23:51:40,231 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 23:51:40,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-14 23:51:40,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-14 23:51:40,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-14 23:51:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2019-10-14 23:51:40,278 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33 [2019-10-14 23:51:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:40,279 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2019-10-14 23:51:40,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:51:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2019-10-14 23:51:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-14 23:51:40,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:40,282 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:51:40,282 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1200270940, now seen corresponding path program 1 times [2019-10-14 23:51:40,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:51:40,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683307435] [2019-10-14 23:51:40,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:40,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:40,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:51:40,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683307435] [2019-10-14 23:51:40,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:40,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:51:40,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950343085] [2019-10-14 23:51:40,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:51:40,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:51:40,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:51:40,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:51:40,433 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 3 states. [2019-10-14 23:51:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:40,481 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2019-10-14 23:51:40,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:51:40,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-10-14 23:51:40,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:40,483 INFO L225 Difference]: With dead ends: 47 [2019-10-14 23:51:40,483 INFO L226 Difference]: Without dead ends: 29 [2019-10-14 23:51:40,485 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 23:51:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-14 23:51:40,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2019-10-14 23:51:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-14 23:51:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-10-14 23:51:40,493 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 33 [2019-10-14 23:51:40,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:40,493 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-10-14 23:51:40,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:51:40,494 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-10-14 23:51:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-14 23:51:40,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:40,495 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 23:51:40,496 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:40,496 INFO L82 PathProgramCache]: Analyzing trace with hash 592534566, now seen corresponding path program 1 times [2019-10-14 23:51:40,497 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:51:40,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954748523] [2019-10-14 23:51:40,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:40,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:40,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-10-14 23:51:40,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954748523] [2019-10-14 23:51:40,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678092765] [2019-10-14 23:51:40,612 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 23:51:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:40,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:51:40,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:51:40,771 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:51:40,772 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:51:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-14 23:51:40,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1345660892] [2019-10-14 23:51:40,860 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 36 [2019-10-14 23:51:40,901 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:51:40,901 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:51:40,977 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:51:40,979 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 2. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 31 variables. [2019-10-14 23:51:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:40,983 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:51:41,047 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-10-14 23:51:41,048 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:51:41,059 INFO L553 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-10-14 23:51:41,059 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:51:41,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:51:41,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4, 4] total 10 [2019-10-14 23:51:41,061 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771963025] [2019-10-14 23:51:41,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:51:41,062 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:51:41,062 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:51:41,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:51:41,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:51:41,063 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2019-10-14 23:51:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:41,085 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-14 23:51:41,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:51:41,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-10-14 23:51:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:41,086 INFO L225 Difference]: With dead ends: 28 [2019-10-14 23:51:41,086 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:51:41,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 23:51:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:51:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:51:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:51:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:51:41,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-10-14 23:51:41,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:41,088 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:51:41,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:51:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:51:41,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:51:41,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:51:41,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:51:41,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:51:41,407 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:51:41,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:51:41,408 INFO L443 ceAbstractionStarter]: For program point bAndFINAL(lines 8 17) no Hoare annotation was computed. [2019-10-14 23:51:41,408 INFO L446 ceAbstractionStarter]: At program point bAndENTRY(lines 8 17) the Hoare annotation is: true [2019-10-14 23:51:41,408 INFO L443 ceAbstractionStarter]: For program point bAndEXIT(lines 8 17) no Hoare annotation was computed. [2019-10-14 23:51:41,408 INFO L443 ceAbstractionStarter]: For program point L13-2(lines 13 15) no Hoare annotation was computed. [2019-10-14 23:51:41,408 INFO L446 ceAbstractionStarter]: At program point L13-3(lines 13 15) the Hoare annotation is: true [2019-10-14 23:51:41,408 INFO L443 ceAbstractionStarter]: For program point L13-4(lines 13 15) no Hoare annotation was computed. [2019-10-14 23:51:41,409 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:51:41,409 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648))) [2019-10-14 23:51:41,409 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:51:41,409 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:51:41,409 INFO L443 ceAbstractionStarter]: For program point L29-2(lines 29 32) no Hoare annotation was computed. [2019-10-14 23:51:41,410 INFO L439 ceAbstractionStarter]: At program point L29-3(lines 29 32) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-14 23:51:41,410 INFO L439 ceAbstractionStarter]: At program point L29-4(lines 29 32) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-14 23:51:41,410 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 50) no Hoare annotation was computed. [2019-10-14 23:51:41,410 INFO L443 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-10-14 23:51:41,410 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 50) no Hoare annotation was computed. [2019-10-14 23:51:41,410 INFO L443 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-10-14 23:51:41,411 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 19 50) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648))) (and (<= ~N~0 2147483647) (<= 0 (+ ~N~0 2147483648)))) [2019-10-14 23:51:41,411 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 48) no Hoare annotation was computed. [2019-10-14 23:51:41,411 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 48) no Hoare annotation was computed. [2019-10-14 23:51:41,412 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 47) no Hoare annotation was computed. [2019-10-14 23:51:41,412 INFO L439 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-14 23:51:41,412 INFO L443 ceAbstractionStarter]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2019-10-14 23:51:41,412 INFO L443 ceAbstractionStarter]: For program point L43-1(line 43) no Hoare annotation was computed. [2019-10-14 23:51:41,413 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2019-10-14 23:51:41,413 INFO L439 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-14 23:51:41,415 INFO L443 ceAbstractionStarter]: For program point L39-2(lines 39 41) no Hoare annotation was computed. [2019-10-14 23:51:41,415 INFO L443 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2019-10-14 23:51:41,415 INFO L439 ceAbstractionStarter]: At program point L39-3(lines 39 41) the Hoare annotation is: (or (not (<= |old(~N~0)| 2147483647)) (not (<= 0 (+ |old(~N~0)| 2147483648)))) [2019-10-14 23:51:41,415 INFO L443 ceAbstractionStarter]: For program point L39-4(lines 39 41) no Hoare annotation was computed. [2019-10-14 23:51:41,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:51:41 BoogieIcfgContainer [2019-10-14 23:51:41,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:51:41,440 INFO L168 Benchmark]: Toolchain (without parser) took 2398.22 ms. Allocated memory was 138.4 MB in the beginning and 234.9 MB in the end (delta: 96.5 MB). Free memory was 103.7 MB in the beginning and 191.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,442 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.69 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 103.5 MB in the beginning and 182.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,445 INFO L168 Benchmark]: Boogie Preprocessor took 43.39 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 179.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,448 INFO L168 Benchmark]: RCFGBuilder took 398.05 ms. Allocated memory is still 203.4 MB. Free memory was 179.8 MB in the beginning and 163.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,454 INFO L168 Benchmark]: TraceAbstraction took 1560.78 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 191.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:51:41,465 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 382.69 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 103.5 MB in the beginning and 182.2 MB in the end (delta: -78.7 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.39 ms. Allocated memory is still 203.4 MB. Free memory was 182.2 MB in the beginning and 179.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.05 ms. Allocated memory is still 203.4 MB. Free memory was 179.8 MB in the beginning and 163.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1560.78 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 163.1 MB in the beginning and 191.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: 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: 39]: Loop Invariant Derived loop invariant: !(\old(N) <= 2147483647) || !(0 <= \old(N) + 2147483648) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: !(\old(N) <= 2147483647) || !(0 <= \old(N) + 2147483648) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 73 SDtfs, 4 SDslu, 21 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 27 PreInvPairs, 27 NumberOfFragments, 88 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 7204 SizeOfPredicates, 3 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 68/78 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 124, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9607843137254901, AVG_VARS_REMOVED_DURING_WEAKENING: 1.411764705882353, AVG_WEAKENED_CONJUNCTS: 0.47058823529411764, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...