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 -i ../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 19:22:07,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 19:22:07,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 19:22:07,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 19:22:07,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 19:22:07,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 19:22:07,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 19:22:07,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 19:22:07,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 19:22:07,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 19:22:07,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 19:22:07,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 19:22:07,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 19:22:07,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 19:22:07,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 19:22:07,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 19:22:07,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 19:22:07,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 19:22:07,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 19:22:07,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 19:22:07,100 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 [2019-09-03 19:22:07,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 19:22:07,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 19:22:07,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 19:22:07,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 19:22:07,121 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 19:22:07,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 19:22:07,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 19:22:07,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 19:22:07,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 19:22:07,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 19:22:07,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 19:22:07,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 19:22:07,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 19:22:07,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 19:22:07,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 19:22:07,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 19:22:07,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 19:22:07,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 19:22:07,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 19:22:07,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 19:22:07,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 19:22:07,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 19:22:07,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 19:22:07,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 19:22:07,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 19:22:07,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 19:22:07,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 19:22:07,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 19:22:07,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 19:22:07,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 19:22:07,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 19:22:07,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 19:22:07,174 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 19:22:07,176 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 19:22:07,177 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-09-03 19:22:07,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ef1016/b43b94e8625146f0a2db7327ed09e9e2/FLAG00eb9844b [2019-09-03 19:22:07,716 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 19:22:07,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-09-03 19:22:07,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ef1016/b43b94e8625146f0a2db7327ed09e9e2/FLAG00eb9844b [2019-09-03 19:22:08,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af1ef1016/b43b94e8625146f0a2db7327ed09e9e2 [2019-09-03 19:22:08,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 19:22:08,090 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 19:22:08,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 19:22:08,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 19:22:08,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 19:22:08,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279c3eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08, skipping insertion in model container [2019-09-03 19:22:08,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,106 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 19:22:08,122 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 19:22:08,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:22:08,318 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 19:22:08,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:22:08,361 INFO L192 MainTranslator]: Completed translation [2019-09-03 19:22:08,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08 WrapperNode [2019-09-03 19:22:08,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 19:22:08,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 19:22:08,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 19:22:08,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 19:22:08,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (1/1) ... [2019-09-03 19:22:08,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 19:22:08,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 19:22:08,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 19:22:08,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 19:22:08,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (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 [2019-09-03 19:22:08,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 19:22:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 19:22:08,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 19:22:08,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 19:22:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 19:22:08,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-03 19:22:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 19:22:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 19:22:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-03 19:22:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-03 19:22:08,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-03 19:22:08,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-03 19:22:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 19:22:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 19:22:08,778 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 19:22:08,779 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-03 19:22:08,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:22:08 BoogieIcfgContainer [2019-09-03 19:22:08,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 19:22:08,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 19:22:08,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 19:22:08,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 19:22:08,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 07:22:08" (1/3) ... [2019-09-03 19:22:08,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721afdc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:22:08, skipping insertion in model container [2019-09-03 19:22:08,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:22:08" (2/3) ... [2019-09-03 19:22:08,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721afdc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:22:08, skipping insertion in model container [2019-09-03 19:22:08,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:22:08" (3/3) ... [2019-09-03 19:22:08,801 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2019-09-03 19:22:08,819 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 19:22:08,828 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 19:22:08,844 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 19:22:08,880 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 19:22:08,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 19:22:08,880 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 19:22:08,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 19:22:08,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 19:22:08,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 19:22:08,881 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 19:22:08,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 19:22:08,881 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 19:22:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-03 19:22:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-03 19:22:08,900 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:22:08,901 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:22:08,903 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:22:08,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:22:08,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1522547275, now seen corresponding path program 1 times [2019-09-03 19:22:08,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:22:08,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:22:08,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:22:08,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:22:08,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:22:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:22:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:22:09,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:22:09,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 19:22:09,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 19:22:09,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 19:22:09,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 19:22:09,047 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-09-03 19:22:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:22:09,067 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-09-03 19:22:09,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 19:22:09,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-09-03 19:22:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:22:09,074 INFO L225 Difference]: With dead ends: 36 [2019-09-03 19:22:09,074 INFO L226 Difference]: Without dead ends: 15 [2019-09-03 19:22:09,077 INFO L628 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 [2019-09-03 19:22:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-03 19:22:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-03 19:22:09,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-03 19:22:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-09-03 19:22:09,108 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2019-09-03 19:22:09,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:22:09,108 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-09-03 19:22:09,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 19:22:09,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-09-03 19:22:09,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-03 19:22:09,109 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:22:09,109 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:22:09,110 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:22:09,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:22:09,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1742365231, now seen corresponding path program 1 times [2019-09-03 19:22:09,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:22:09,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:22:09,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:22:09,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:22:09,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:22:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:22:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:22:09,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:22:09,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-03 19:22:09,243 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-03 19:22:09,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-03 19:22:09,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-03 19:22:09,244 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2019-09-03 19:22:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:22:09,270 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-09-03 19:22:09,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-03 19:22:09,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-09-03 19:22:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:22:09,271 INFO L225 Difference]: With dead ends: 15 [2019-09-03 19:22:09,271 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 19:22:09,273 INFO L628 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 [2019-09-03 19:22:09,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 19:22:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 19:22:09,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 19:22:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 19:22:09,275 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-09-03 19:22:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:22:09,275 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 19:22:09,275 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-03 19:22:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 19:22:09,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 19:22:09,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-03 19:22:09,301 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:22:09,301 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:22:09,301 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:22:09,302 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:22:09,302 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-03 19:22:09,302 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:22:09,302 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:22:09,302 INFO L446 ceAbstractionStarter]: At program point L27-2(lines 27 33) the Hoare annotation is: true [2019-09-03 19:22:09,303 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2019-09-03 19:22:09,303 INFO L446 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2019-09-03 19:22:09,303 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2019-09-03 19:22:09,303 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: true [2019-09-03 19:22:09,303 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-09-03 19:22:09,304 INFO L446 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: true [2019-09-03 19:22:09,304 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-09-03 19:22:09,304 INFO L443 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2019-09-03 19:22:09,304 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-09-03 19:22:09,304 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-09-03 19:22:09,305 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-09-03 19:22:09,305 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-09-03 19:22:09,305 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-09-03 19:22:09,305 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-09-03 19:22:09,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 07:22:09 BoogieIcfgContainer [2019-09-03 19:22:09,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 19:22:09,315 INFO L168 Benchmark]: Toolchain (without parser) took 1223.74 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 89.0 MB in the beginning and 132.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,316 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.81 ms. Allocated memory is still 133.2 MB. Free memory was 88.8 MB in the beginning and 78.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,318 INFO L168 Benchmark]: Boogie Preprocessor took 130.35 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 78.6 MB in the beginning and 175.6 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,319 INFO L168 Benchmark]: RCFGBuilder took 287.23 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 162.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,320 INFO L168 Benchmark]: TraceAbstraction took 523.42 ms. Allocated memory is still 199.8 MB. Free memory was 161.6 MB in the beginning and 132.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-09-03 19:22:09,324 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.81 ms. Allocated memory is still 133.2 MB. Free memory was 88.8 MB in the beginning and 78.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.35 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 78.6 MB in the beginning and 175.6 MB in the end (delta: -97.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.23 ms. Allocated memory is still 199.8 MB. Free memory was 175.6 MB in the beginning and 162.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 523.42 ms. Allocated memory is still 199.8 MB. Free memory was 161.6 MB in the beginning and 132.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 25 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...