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/loops/eureka_05.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:05:58,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:05:58,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:05:58,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:05:58,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:05:58,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:05:58,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:05:58,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:05:58,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:05:58,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:05:58,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:05:58,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:05:58,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:05:58,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:05:58,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:05:58,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:05:58,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:05:58,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:05:58,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:05:58,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:05:58,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:05:58,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:05:58,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:05:58,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:05:58,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:05:59,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:05:59,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:05:59,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:05:59,008 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 [2019-10-15 01:05:59,022 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:05:59,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:05:59,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:05:59,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:05:59,024 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:05:59,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:05:59,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:05:59,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:05:59,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:05:59,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:05:59,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:05:59,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:05:59,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:05:59,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:05:59,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:05:59,026 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:05:59,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:05:59,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:05:59,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:05:59,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:05:59,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:05:59,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:05:59,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:05:59,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:05:59,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:05:59,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:05:59,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:05:59,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:05:59,029 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 [2019-10-15 01:05:59,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:05:59,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:05:59,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:05:59,337 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:05:59,337 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:05:59,338 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_05.i [2019-10-15 01:05:59,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8761adca7/a9b8059f1f9d48099e522c9f649571f7/FLAGd99092345 [2019-10-15 01:05:59,880 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:05:59,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_05.i [2019-10-15 01:05:59,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8761adca7/a9b8059f1f9d48099e522c9f649571f7/FLAGd99092345 [2019-10-15 01:06:00,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8761adca7/a9b8059f1f9d48099e522c9f649571f7 [2019-10-15 01:06:00,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:06:00,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:06:00,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:00,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:06:00,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:06:00,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1672ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00, skipping insertion in model container [2019-10-15 01:06:00,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,293 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:06:00,315 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:06:00,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:00,511 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:06:00,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:00,557 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:06:00,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00 WrapperNode [2019-10-15 01:06:00,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:00,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:06:00,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:06:00,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:06:00,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (1/1) ... [2019-10-15 01:06:00,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:06:00,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:06:00,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:06:00,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:06:00,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (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 [2019-10-15 01:06:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:06:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:06:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:06:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure SelectionSort [2019-10-15 01:06:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:06:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:06:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:06:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure SelectionSort [2019-10-15 01:06:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:06:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:06:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:06:01,085 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:06:01,085 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:06:01,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:01 BoogieIcfgContainer [2019-10-15 01:06:01,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:06:01,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:06:01,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:06:01,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:06:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:06:00" (1/3) ... [2019-10-15 01:06:01,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e93992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:01, skipping insertion in model container [2019-10-15 01:06:01,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:00" (2/3) ... [2019-10-15 01:06:01,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e93992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:01, skipping insertion in model container [2019-10-15 01:06:01,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:01" (3/3) ... [2019-10-15 01:06:01,095 INFO L109 eAbstractionObserver]: Analyzing ICFG eureka_05.i [2019-10-15 01:06:01,103 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:06:01,110 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:06:01,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:06:01,145 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:06:01,145 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:06:01,145 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:06:01,145 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:06:01,145 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:06:01,146 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:06:01,146 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:06:01,146 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:06:01,171 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-15 01:06:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:06:01,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:01,179 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:01,182 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:01,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:01,187 INFO L82 PathProgramCache]: Analyzing trace with hash 625586084, now seen corresponding path program 1 times [2019-10-15 01:06:01,194 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:01,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955346225] [2019-10-15 01:06:01,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:01,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955346225] [2019-10-15 01:06:01,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:01,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:06:01,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512285603] [2019-10-15 01:06:01,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:06:01,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:01,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:06:01,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:01,354 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-15 01:06:01,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:01,382 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2019-10-15 01:06:01,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:06:01,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-15 01:06:01,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:01,394 INFO L225 Difference]: With dead ends: 60 [2019-10-15 01:06:01,394 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 01:06:01,399 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 [2019-10-15 01:06:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 01:06:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-15 01:06:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-15 01:06:01,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2019-10-15 01:06:01,451 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2019-10-15 01:06:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:01,452 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2019-10-15 01:06:01,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:06:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2019-10-15 01:06:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:06:01,454 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:01,454 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:01,455 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:01,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:01,455 INFO L82 PathProgramCache]: Analyzing trace with hash 2087778385, now seen corresponding path program 1 times [2019-10-15 01:06:01,456 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:01,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548336319] [2019-10-15 01:06:01,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:01,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548336319] [2019-10-15 01:06:01,574 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:01,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:06:01,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076347722] [2019-10-15 01:06:01,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:06:01,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:01,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:06:01,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:06:01,583 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2019-10-15 01:06:01,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:01,645 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2019-10-15 01:06:01,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:06:01,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-15 01:06:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:01,647 INFO L225 Difference]: With dead ends: 52 [2019-10-15 01:06:01,647 INFO L226 Difference]: Without dead ends: 31 [2019-10-15 01:06:01,649 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 [2019-10-15 01:06:01,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-15 01:06:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-10-15 01:06:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-15 01:06:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2019-10-15 01:06:01,666 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 18 [2019-10-15 01:06:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:01,666 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2019-10-15 01:06:01,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:06:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2019-10-15 01:06:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:06:01,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:01,669 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:01,670 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:01,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:01,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1482156659, now seen corresponding path program 1 times [2019-10-15 01:06:01,672 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:01,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397445917] [2019-10-15 01:06:01,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:01,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:01,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:01,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397445917] [2019-10-15 01:06:01,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814000281] [2019-10-15 01:06:01,784 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 [2019-10-15 01:06:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:01,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 01:06:01,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:06:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:01,885 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:06:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:01,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [898285659] [2019-10-15 01:06:01,936 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-10-15 01:06:01,972 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:06:01,973 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:06:02,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:06:02,029 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 0. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 18 variables. [2019-10-15 01:06:02,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:02,033 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:06:02,058 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-15 01:06:02,059 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:06:02,061 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-10-15 01:06:02,061 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:06:02,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:06:02,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 6 [2019-10-15 01:06:02,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675275384] [2019-10-15 01:06:02,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:06:02,064 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:02,064 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:06:02,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:06:02,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:02,065 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 2 states. [2019-10-15 01:06:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:02,067 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-10-15 01:06:02,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:06:02,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-15 01:06:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:02,068 INFO L225 Difference]: With dead ends: 30 [2019-10-15 01:06:02,068 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:06:02,069 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:06:02,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:06:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:06:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:06:02,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-15 01:06:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:02,071 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:06:02,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:06:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:06:02,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:06:02,277 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:06:02,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:06:02,335 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:06:02,336 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:06:02,336 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:02,336 INFO L443 ceAbstractionStarter]: For program point SelectionSortEXIT(lines 15 27) no Hoare annotation was computed. [2019-10-15 01:06:02,336 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 22) no Hoare annotation was computed. [2019-10-15 01:06:02,336 INFO L446 ceAbstractionStarter]: At program point L21-3(lines 21 22) the Hoare annotation is: true [2019-10-15 01:06:02,337 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 22) no Hoare annotation was computed. [2019-10-15 01:06:02,337 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2019-10-15 01:06:02,337 INFO L446 ceAbstractionStarter]: At program point L19-3(lines 19 26) the Hoare annotation is: true [2019-10-15 01:06:02,337 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 15 27) no Hoare annotation was computed. [2019-10-15 01:06:02,337 INFO L446 ceAbstractionStarter]: At program point SelectionSortENTRY(lines 15 27) the Hoare annotation is: true [2019-10-15 01:06:02,337 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-10-15 01:06:02,338 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:02,338 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-15 01:06:02,338 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:06:02,339 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:06:02,339 INFO L443 ceAbstractionStarter]: For program point L33-2(lines 33 34) no Hoare annotation was computed. [2019-10-15 01:06:02,340 INFO L446 ceAbstractionStarter]: At program point L33-3(lines 33 34) the Hoare annotation is: true [2019-10-15 01:06:02,340 INFO L446 ceAbstractionStarter]: At program point L33-4(lines 33 34) the Hoare annotation is: true [2019-10-15 01:06:02,340 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 29 41) no Hoare annotation was computed. [2019-10-15 01:06:02,340 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 29 41) no Hoare annotation was computed. [2019-10-15 01:06:02,340 INFO L443 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2019-10-15 01:06:02,341 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2019-10-15 01:06:02,341 INFO L446 ceAbstractionStarter]: At program point L38-3(lines 38 39) the Hoare annotation is: true [2019-10-15 01:06:02,341 INFO L443 ceAbstractionStarter]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2019-10-15 01:06:02,343 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 29 41) the Hoare annotation is: true [2019-10-15 01:06:02,344 INFO L446 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: true [2019-10-15 01:06:02,344 INFO L443 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2019-10-15 01:06:02,344 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 01:06:02,344 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 01:06:02,344 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 01:06:02,345 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 01:06:02,345 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:06:02,345 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 01:06:02,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:06:02 BoogieIcfgContainer [2019-10-15 01:06:02,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:06:02,360 INFO L168 Benchmark]: Toolchain (without parser) took 2084.11 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 99.4 MB in the beginning and 100.3 MB in the end (delta: -913.4 kB). Peak memory consumption was 63.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:02,361 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory is still 117.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:06:02,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.09 ms. Allocated memory is still 135.8 MB. Free memory was 99.4 MB in the beginning and 89.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:02,366 INFO L168 Benchmark]: Boogie Preprocessor took 129.76 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 89.0 MB in the beginning and 177.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:02,367 INFO L168 Benchmark]: RCFGBuilder took 398.77 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 160.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:02,374 INFO L168 Benchmark]: TraceAbstraction took 1267.93 ms. Allocated memory is still 199.8 MB. Free memory was 160.4 MB in the beginning and 100.3 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:02,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory is still 117.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 283.09 ms. Allocated memory is still 135.8 MB. Free memory was 99.4 MB in the beginning and 89.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.76 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 89.0 MB in the beginning and 177.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.77 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 160.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1267.93 ms. Allocated memory is still 199.8 MB. Free memory was 160.4 MB in the beginning and 100.3 MB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 1 SDslu, 26 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 20 PreInvPairs, 20 NumberOfFragments, 12 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 2037 SizeOfPredicates, 1 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 98, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8947368421052632, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...