java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:00,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:00,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:00,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:00,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:00,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:00,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:00,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:00,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:00,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:00,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:00,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:00,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:00,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:00,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:00,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:00,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:00,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:00,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:00,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:00,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:00,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:00,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:00,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:00,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:00,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:00,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:00,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:00,951 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 19:53:00,983 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:00,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:00,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:00,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:00,986 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:00,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:00,987 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:00,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:00,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:00,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:00,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:00,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:00,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:00,989 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:00,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:00,990 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:00,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:00,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:00,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:00,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:00,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:00,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:00,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:00,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:00,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:00,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:00,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:00,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:00,992 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 19:53:01,279 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:01,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:01,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:01,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:01,305 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:01,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-13 19:53:01,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63157b618/eda5e38434374d68ac1f42efd5c04908/FLAG53aa7e833 [2019-10-13 19:53:01,830 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:01,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sorting_selectionsort_2_ground.i [2019-10-13 19:53:01,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63157b618/eda5e38434374d68ac1f42efd5c04908/FLAG53aa7e833 [2019-10-13 19:53:02,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63157b618/eda5e38434374d68ac1f42efd5c04908 [2019-10-13 19:53:02,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:02,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:02,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:02,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:02,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:02,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6ea3f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02, skipping insertion in model container [2019-10-13 19:53:02,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,269 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:02,291 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:02,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:02,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:02,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:02,704 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:02,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02 WrapperNode [2019-10-13 19:53:02,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:02,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:02,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:02,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:02,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (1/1) ... [2019-10-13 19:53:02,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:02,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:02,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:02,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:02,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (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 19:53:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:02,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:03,211 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:03,212 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-13 19:53:03,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:03 BoogieIcfgContainer [2019-10-13 19:53:03,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:03,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:03,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:03,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:03,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:02" (1/3) ... [2019-10-13 19:53:03,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9ea06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:03, skipping insertion in model container [2019-10-13 19:53:03,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:02" (2/3) ... [2019-10-13 19:53:03,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9ea06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:03, skipping insertion in model container [2019-10-13 19:53:03,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:03" (3/3) ... [2019-10-13 19:53:03,230 INFO L109 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2019-10-13 19:53:03,244 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:03,254 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:03,264 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:03,290 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:03,290 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:03,291 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:03,291 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:03,291 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:03,291 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:03,291 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:03,291 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:03,308 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-13 19:53:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 19:53:03,314 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:03,315 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:03,316 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:03,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:03,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1156372912, now seen corresponding path program 1 times [2019-10-13 19:53:03,329 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:03,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56570906] [2019-10-13 19:53:03,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:03,449 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 19:53:03,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56570906] [2019-10-13 19:53:03,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:03,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:03,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135759614] [2019-10-13 19:53:03,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:03,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:03,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:03,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:03,473 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-13 19:53:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:03,501 INFO L93 Difference]: Finished difference Result 82 states and 123 transitions. [2019-10-13 19:53:03,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:03,502 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-13 19:53:03,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:03,510 INFO L225 Difference]: With dead ends: 82 [2019-10-13 19:53:03,511 INFO L226 Difference]: Without dead ends: 40 [2019-10-13 19:53:03,514 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 19:53:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-13 19:53:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-10-13 19:53:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-13 19:53:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-10-13 19:53:03,552 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 16 [2019-10-13 19:53:03,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:03,552 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-10-13 19:53:03,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-10-13 19:53:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 19:53:03,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:03,554 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:03,555 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:03,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2078459264, now seen corresponding path program 1 times [2019-10-13 19:53:03,556 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:03,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253052659] [2019-10-13 19:53:03,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:03,611 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 19:53:03,611 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253052659] [2019-10-13 19:53:03,612 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:03,612 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:03,612 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646960660] [2019-10-13 19:53:03,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:03,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:03,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:03,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:03,615 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 3 states. [2019-10-13 19:53:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:03,717 INFO L93 Difference]: Finished difference Result 92 states and 123 transitions. [2019-10-13 19:53:03,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:03,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-13 19:53:03,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:03,720 INFO L225 Difference]: With dead ends: 92 [2019-10-13 19:53:03,720 INFO L226 Difference]: Without dead ends: 60 [2019-10-13 19:53:03,721 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 19:53:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-13 19:53:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 42. [2019-10-13 19:53:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-10-13 19:53:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2019-10-13 19:53:03,733 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 16 [2019-10-13 19:53:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:03,734 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2019-10-13 19:53:03,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2019-10-13 19:53:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 19:53:03,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:03,736 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] [2019-10-13 19:53:03,736 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash -898844059, now seen corresponding path program 1 times [2019-10-13 19:53:03,737 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:03,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214206274] [2019-10-13 19:53:03,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,738 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:03,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:03,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214206274] [2019-10-13 19:53:03,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:03,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:53:03,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756537435] [2019-10-13 19:53:03,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:53:03,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:03,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:53:03,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:53:03,860 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 4 states. [2019-10-13 19:53:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:03,993 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2019-10-13 19:53:03,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:53:03,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2019-10-13 19:53:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:03,995 INFO L225 Difference]: With dead ends: 94 [2019-10-13 19:53:03,995 INFO L226 Difference]: Without dead ends: 63 [2019-10-13 19:53:03,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:53:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-10-13 19:53:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 43. [2019-10-13 19:53:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-13 19:53:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2019-10-13 19:53:04,005 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 20 [2019-10-13 19:53:04,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:04,006 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2019-10-13 19:53:04,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:53:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2019-10-13 19:53:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-13 19:53:04,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:04,007 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:04,007 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:04,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1561235658, now seen corresponding path program 1 times [2019-10-13 19:53:04,008 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:04,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377249607] [2019-10-13 19:53:04,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:04,009 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:04,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:04,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:04,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377249607] [2019-10-13 19:53:04,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645244117] [2019-10-13 19:53:04,091 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 19:53:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:04,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:04,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:04,218 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:04,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [181399871] [2019-10-13 19:53:04,279 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 24 [2019-10-13 19:53:04,315 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:04,316 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:04,397 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:04,398 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 28 variables. [2019-10-13 19:53:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:04,403 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:04,442 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:04,442 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:04,444 INFO L553 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-13 19:53:04,444 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:04,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:04,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8 [2019-10-13 19:53:04,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979662376] [2019-10-13 19:53:04,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:04,447 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:04,447 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:04,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:04,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:04,448 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 2 states. [2019-10-13 19:53:04,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:04,450 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-10-13 19:53:04,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:04,451 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-13 19:53:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:04,451 INFO L225 Difference]: With dead ends: 43 [2019-10-13 19:53:04,451 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:04,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 19:53:04,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:04,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:04,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-13 19:53:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:04,454 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:04,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:04,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:04,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:04,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:04,710 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:04,710 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:04,710 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:04,711 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:04,711 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:04,711 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:04,711 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:04,712 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 47) no Hoare annotation was computed. [2019-10-13 19:53:04,712 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 38) no Hoare annotation was computed. [2019-10-13 19:53:04,713 INFO L439 ceAbstractionStarter]: At program point L36-3(lines 36 38) the Hoare annotation is: false [2019-10-13 19:53:04,713 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 36 38) no Hoare annotation was computed. [2019-10-13 19:53:04,713 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: false [2019-10-13 19:53:04,713 INFO L443 ceAbstractionStarter]: For program point L20-3(lines 17 40) no Hoare annotation was computed. [2019-10-13 19:53:04,713 INFO L439 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: false [2019-10-13 19:53:04,714 INFO L443 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2019-10-13 19:53:04,714 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-10-13 19:53:04,714 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed. [2019-10-13 19:53:04,714 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 47) no Hoare annotation was computed. [2019-10-13 19:53:04,714 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 47) the Hoare annotation is: true [2019-10-13 19:53:04,714 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2019-10-13 19:53:04,715 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 35) the Hoare annotation is: false [2019-10-13 19:53:04,715 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2019-10-13 19:53:04,715 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 34) no Hoare annotation was computed. [2019-10-13 19:53:04,715 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 34) the Hoare annotation is: false [2019-10-13 19:53:04,715 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 45) no Hoare annotation was computed. [2019-10-13 19:53:04,715 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: false [2019-10-13 19:53:04,715 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2019-10-13 19:53:04,715 INFO L439 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: false [2019-10-13 19:53:04,716 INFO L443 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2019-10-13 19:53:04,716 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 40) the Hoare annotation is: false [2019-10-13 19:53:04,716 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 40) no Hoare annotation was computed. [2019-10-13 19:53:04,716 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 44) no Hoare annotation was computed. [2019-10-13 19:53:04,716 INFO L439 ceAbstractionStarter]: At program point L42-3(lines 42 44) the Hoare annotation is: false [2019-10-13 19:53:04,717 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2019-10-13 19:53:04,717 INFO L439 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: false [2019-10-13 19:53:04,717 INFO L443 ceAbstractionStarter]: For program point L43-1(line 43) no Hoare annotation was computed. [2019-10-13 19:53:04,717 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2019-10-13 19:53:04,718 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 13) the Hoare annotation is: false [2019-10-13 19:53:04,718 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 10 13) no Hoare annotation was computed. [2019-10-13 19:53:04,718 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:04,718 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:04,718 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:04,718 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:04,722 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:04,722 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:04,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:04 BoogieIcfgContainer [2019-10-13 19:53:04,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:04,743 INFO L168 Benchmark]: Toolchain (without parser) took 2493.43 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 103.3 MB in the beginning and 190.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,746 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.62 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 102.9 MB in the beginning and 184.7 MB in the end (delta: -81.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,750 INFO L168 Benchmark]: Boogie Preprocessor took 82.82 ms. Allocated memory is still 206.0 MB. Free memory was 184.7 MB in the beginning and 182.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,756 INFO L168 Benchmark]: RCFGBuilder took 422.63 ms. Allocated memory is still 206.0 MB. Free memory was 182.2 MB in the beginning and 164.0 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,757 INFO L168 Benchmark]: TraceAbstraction took 1523.51 ms. Allocated memory was 206.0 MB in the beginning and 234.9 MB in the end (delta: 28.8 MB). Free memory was 163.3 MB in the beginning and 190.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:04,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 453.62 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 102.9 MB in the beginning and 184.7 MB in the end (delta: -81.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.82 ms. Allocated memory is still 206.0 MB. Free memory was 184.7 MB in the beginning and 182.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.63 ms. Allocated memory is still 206.0 MB. Free memory was 182.2 MB in the beginning and 164.0 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1523.51 ms. Allocated memory was 206.0 MB in the beginning and 234.9 MB in the end (delta: 28.8 MB). Free memory was 163.3 MB in the beginning and 190.7 MB in the end (delta: -27.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 50 SDslu, 107 SDs, 0 SdLazy, 71 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 27 PreInvPairs, 27 NumberOfFragments, 16 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 2853 SizeOfPredicates, 1 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 125, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9431818181818182, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0454545454545454, AVG_WEAKENED_CONJUNCTS: 0.2727272727272727, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...