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/loop-crafted/simple_array_index_value_1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:38,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:38,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:38,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:38,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:38,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:38,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:38,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:38,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:38,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:38,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:38,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:38,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:38,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:38,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:38,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:38,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:38,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:38,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:38,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:38,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:38,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:38,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:38,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:38,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:05:38,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:38,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:38,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:38,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:05:39,013 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:39,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:39,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:39,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:39,016 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:39,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:39,016 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:39,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:39,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:39,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:39,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:39,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:39,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:39,019 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:39,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:39,019 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:39,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:39,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:39,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:39,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:39,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:39,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:39,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:39,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:39,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:39,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:39,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:39,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:39,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:05:39,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:39,330 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:39,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:39,335 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:39,336 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:39,336 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2019-10-13 21:05:39,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1ab924f/0577edbe030148d8a912401c8d3f50ed/FLAG70b256981 [2019-10-13 21:05:39,873 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:39,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_1-1.i [2019-10-13 21:05:39,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1ab924f/0577edbe030148d8a912401c8d3f50ed/FLAG70b256981 [2019-10-13 21:05:40,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1ab924f/0577edbe030148d8a912401c8d3f50ed [2019-10-13 21:05:40,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:40,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:40,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:40,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:40,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:40,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0f51fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40, skipping insertion in model container [2019-10-13 21:05:40,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,295 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:40,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:40,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:40,519 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:40,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:40,561 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:40,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40 WrapperNode [2019-10-13 21:05:40,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:40,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:40,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:40,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:40,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... [2019-10-13 21:05:40,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:40,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:40,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:40,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:40,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:05:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:05:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:05:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:05:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:05:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:05:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:43,058 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:43,059 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 21:05:43,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:43 BoogieIcfgContainer [2019-10-13 21:05:43,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:43,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:43,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:43,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:43,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:40" (1/3) ... [2019-10-13 21:05:43,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31ab78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:43, skipping insertion in model container [2019-10-13 21:05:43,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:40" (2/3) ... [2019-10-13 21:05:43,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b31ab78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:43, skipping insertion in model container [2019-10-13 21:05:43,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:43" (3/3) ... [2019-10-13 21:05:43,070 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_1-1.i [2019-10-13 21:05:43,082 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:43,091 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:43,113 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:43,164 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:43,164 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:43,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:43,165 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:43,165 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:43,165 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:43,165 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:43,165 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-10-13 21:05:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:05:43,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:43,192 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:43,194 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:43,201 INFO L82 PathProgramCache]: Analyzing trace with hash -956066777, now seen corresponding path program 1 times [2019-10-13 21:05:43,210 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:43,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605193941] [2019-10-13 21:05:43,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:43,340 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605193941] [2019-10-13 21:05:43,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:43,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:05:43,341 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879637655] [2019-10-13 21:05:43,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:43,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:43,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:43,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:43,367 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2019-10-13 21:05:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:43,394 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2019-10-13 21:05:43,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:43,396 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-13 21:05:43,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:43,407 INFO L225 Difference]: With dead ends: 46 [2019-10-13 21:05:43,408 INFO L226 Difference]: Without dead ends: 22 [2019-10-13 21:05:43,411 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-13 21:05:43,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-13 21:05:43,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 21:05:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-13 21:05:43,457 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-10-13 21:05:43,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:43,457 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-13 21:05:43,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:43,458 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-13 21:05:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 21:05:43,460 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:43,460 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:43,460 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1471973101, now seen corresponding path program 1 times [2019-10-13 21:05:43,461 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:43,461 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478830528] [2019-10-13 21:05:43,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:43,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478830528] [2019-10-13 21:05:43,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:43,579 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:05:43,579 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375073857] [2019-10-13 21:05:43,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:05:43,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:43,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:05:43,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:05:43,583 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 3 states. [2019-10-13 21:05:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:43,657 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2019-10-13 21:05:43,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:05:43,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 21:05:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:43,659 INFO L225 Difference]: With dead ends: 43 [2019-10-13 21:05:43,659 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 21:05:43,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:05:43,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 21:05:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2019-10-13 21:05:43,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-13 21:05:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-10-13 21:05:43,671 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 14 [2019-10-13 21:05:43,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:43,671 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-10-13 21:05:43,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:05:43,671 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-10-13 21:05:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 21:05:43,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:43,673 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:43,673 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:43,674 INFO L82 PathProgramCache]: Analyzing trace with hash 534952077, now seen corresponding path program 1 times [2019-10-13 21:05:43,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:43,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779312519] [2019-10-13 21:05:43,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:43,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:43,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:43,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779312519] [2019-10-13 21:05:43,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411637567] [2019-10-13 21:05:43,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:43,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-13 21:05:43,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:05:43,956 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-13 21:05:43,956 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:43,961 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:05:43,961 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:43,962 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-10-13 21:05:44,011 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-13 21:05:44,012 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:44,015 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:05:44,015 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:44,015 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-10-13 21:05:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:44,062 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:05:44,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:44,347 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:44,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:44,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:44,382 WARN L225 Elim1Store]: Array PQE input equivalent to true [2019-10-13 21:05:44,383 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:44,457 INFO L567 ElimStorePlain]: treesize reduction 174, result has 13.4 percent of original size [2019-10-13 21:05:44,462 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2019-10-13 21:05:44,473 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2019-10-13 21:05:44,475 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2019-10-13 21:05:44,483 INFO L567 ElimStorePlain]: treesize reduction 6, result has 60.0 percent of original size [2019-10-13 21:05:44,483 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:44,489 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:05:44,490 INFO L464 ElimStorePlain]: Eliminatee v_prenex_6 vanished before elimination [2019-10-13 21:05:44,490 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-10-13 21:05:44,491 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 21:05:44,491 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:247, output treesize:16 [2019-10-13 21:05:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:44,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [61630956] [2019-10-13 21:05:44,538 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-13 21:05:44,597 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:05:44,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:05:44,708 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:05:44,710 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 17 variables. [2019-10-13 21:05:44,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:44,715 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:05:44,774 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:05:44,774 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:05:44,776 INFO L553 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-10-13 21:05:44,776 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:05:44,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:05:44,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 8, 9] total 16 [2019-10-13 21:05:44,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079036486] [2019-10-13 21:05:44,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:44,778 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:44,778 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:05:44,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:44,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:44,779 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 2 states. [2019-10-13 21:05:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:44,781 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-10-13 21:05:44,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:44,782 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-13 21:05:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:44,782 INFO L225 Difference]: With dead ends: 25 [2019-10-13 21:05:44,782 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:44,783 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:44,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:44,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-13 21:05:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:44,784 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:44,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:44,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:44,995 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:45,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:45,024 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:45,024 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:45,024 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:45,025 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:45,025 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:45,025 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:45,025 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:45,026 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: false [2019-10-13 21:05:45,026 INFO L443 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-10-13 21:05:45,026 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: false [2019-10-13 21:05:45,026 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-13 21:05:45,027 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 33) no Hoare annotation was computed. [2019-10-13 21:05:45,027 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 31) no Hoare annotation was computed. [2019-10-13 21:05:45,027 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 31) the Hoare annotation is: false [2019-10-13 21:05:45,027 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 31) no Hoare annotation was computed. [2019-10-13 21:05:45,027 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-10-13 21:05:45,027 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: false [2019-10-13 21:05:45,028 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed. [2019-10-13 21:05:45,028 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 33) no Hoare annotation was computed. [2019-10-13 21:05:45,028 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 33) the Hoare annotation is: true [2019-10-13 21:05:45,028 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-10-13 21:05:45,028 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 8 14) the Hoare annotation is: true [2019-10-13 21:05:45,028 INFO L443 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-10-13 21:05:45,028 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 12) no Hoare annotation was computed. [2019-10-13 21:05:45,029 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-10-13 21:05:45,029 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 8 14) no Hoare annotation was computed. [2019-10-13 21:05:45,029 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 8 14) no Hoare annotation was computed. [2019-10-13 21:05:45,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:45 BoogieIcfgContainer [2019-10-13 21:05:45,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:45,039 INFO L168 Benchmark]: Toolchain (without parser) took 4765.07 ms. Allocated memory was 136.3 MB in the beginning and 229.6 MB in the end (delta: 93.3 MB). Free memory was 100.9 MB in the beginning and 173.6 MB in the end (delta: -72.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,040 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.21 ms. Allocated memory is still 136.3 MB. Free memory was 100.7 MB in the beginning and 90.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,041 INFO L168 Benchmark]: Boogie Preprocessor took 141.26 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 90.8 MB in the beginning and 178.6 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,042 INFO L168 Benchmark]: RCFGBuilder took 2356.84 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 164.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,043 INFO L168 Benchmark]: TraceAbstraction took 1974.26 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 173.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:45,047 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.21 ms. Allocated memory is still 136.3 MB. Free memory was 100.7 MB in the beginning and 90.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.26 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 90.8 MB in the beginning and 178.6 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2356.84 ms. Allocated memory is still 200.8 MB. Free memory was 178.6 MB in the beginning and 164.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1974.26 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 164.4 MB in the beginning and 173.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 4 SDslu, 16 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 9 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 3739 SizeOfPredicates, 10 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 177, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.95, AVG_VARS_REMOVED_DURING_WEAKENING: 0.6666666666666666, AVG_WEAKENED_CONJUNCTS: 0.4, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...