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/loop-invgen/apache-get-tag.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:58:07,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:07,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:07,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:58:07,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:58:07,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:58:07,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:58:07,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:58:07,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:58:07,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:58:07,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:58:07,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:58:07,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:07,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:07,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:07,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:07,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:07,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:07,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:07,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:07,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:07,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:07,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:07,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:07,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:07,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 12:58:07,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 12:58:07,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 12:58:07,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 12:58:07,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 12:58:07,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 12:58:07,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 12:58:07,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 12:58:07,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:07,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:07,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:07,898 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 [2019-09-20 12:58:07,917 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:07,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:07,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:07,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:07,919 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:07,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:07,919 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:07,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:07,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:07,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:07,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:07,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:07,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:07,921 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:07,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:07,922 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:07,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:07,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:07,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:07,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:07,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:07,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:07,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:07,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:07,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:07,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:07,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:07,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:07,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:07,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:07,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:07,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:07,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:07,971 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:07,971 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i [2019-09-20 12:58:08,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0512d21c1/e3a5d24d4cab444e875833187c57b426/FLAGecf07ae65 [2019-09-20 12:58:08,485 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:08,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i [2019-09-20 12:58:08,492 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0512d21c1/e3a5d24d4cab444e875833187c57b426/FLAGecf07ae65 [2019-09-20 12:58:08,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0512d21c1/e3a5d24d4cab444e875833187c57b426 [2019-09-20 12:58:08,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:08,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:08,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:08,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:08,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:08,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:08" (1/1) ... [2019-09-20 12:58:08,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761d3d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:08, skipping insertion in model container [2019-09-20 12:58:08,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:08" (1/1) ... [2019-09-20 12:58:08,862 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:08,884 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:09,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:09,090 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:09,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:09,121 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:09,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09 WrapperNode [2019-09-20 12:58:09,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:09,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:09,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:09,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:09,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (1/1) ... [2019-09-20 12:58:09,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:09,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:09,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:09,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:09,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (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 [2019-09-20 12:58:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:58:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 12:58:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:58:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:09,574 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:09,585 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 12:58:09,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:09 BoogieIcfgContainer [2019-09-20 12:58:09,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:09,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:09,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:09,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:09,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:08" (1/3) ... [2019-09-20 12:58:09,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2816c01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:09, skipping insertion in model container [2019-09-20 12:58:09,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:09" (2/3) ... [2019-09-20 12:58:09,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2816c01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:09, skipping insertion in model container [2019-09-20 12:58:09,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:09" (3/3) ... [2019-09-20 12:58:09,603 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2019-09-20 12:58:09,612 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:09,620 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:09,635 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:09,663 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:09,663 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:09,663 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:09,664 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:09,664 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:09,664 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:09,664 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:09,664 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:09,664 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-09-20 12:58:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 12:58:09,685 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:09,685 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:09,687 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:09,692 INFO L82 PathProgramCache]: Analyzing trace with hash 2074932940, now seen corresponding path program 1 times [2019-09-20 12:58:09,694 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:09,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:09,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:09,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:09,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:09,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:09,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:09,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:58:09,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:58:09,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:58:09,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:58:09,805 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2019-09-20 12:58:09,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:09,834 INFO L93 Difference]: Finished difference Result 87 states and 156 transitions. [2019-09-20 12:58:09,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:58:09,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-20 12:58:09,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:09,843 INFO L225 Difference]: With dead ends: 87 [2019-09-20 12:58:09,844 INFO L226 Difference]: Without dead ends: 42 [2019-09-20 12:58:09,848 INFO L636 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 [2019-09-20 12:58:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-20 12:58:09,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-09-20 12:58:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-09-20 12:58:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2019-09-20 12:58:09,895 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 12 [2019-09-20 12:58:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:09,896 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2019-09-20 12:58:09,896 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:58:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2019-09-20 12:58:09,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-20 12:58:09,897 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:09,897 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:09,898 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:09,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:09,898 INFO L82 PathProgramCache]: Analyzing trace with hash -132543993, now seen corresponding path program 1 times [2019-09-20 12:58:09,899 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:09,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:09,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:09,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:09,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:09,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:09,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:09,982 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:09,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:09,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:09,983 INFO L87 Difference]: Start difference. First operand 42 states and 60 transitions. Second operand 5 states. [2019-09-20 12:58:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:10,174 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2019-09-20 12:58:10,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 12:58:10,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-20 12:58:10,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:10,176 INFO L225 Difference]: With dead ends: 48 [2019-09-20 12:58:10,176 INFO L226 Difference]: Without dead ends: 46 [2019-09-20 12:58:10,178 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:10,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-20 12:58:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-09-20 12:58:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-09-20 12:58:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2019-09-20 12:58:10,192 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 13 [2019-09-20 12:58:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:10,192 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2019-09-20 12:58:10,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2019-09-20 12:58:10,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 12:58:10,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:10,194 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:10,194 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:10,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -811261734, now seen corresponding path program 1 times [2019-09-20 12:58:10,195 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:10,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:10,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:10,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:10,258 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:10,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:10,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:10,259 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand 5 states. [2019-09-20 12:58:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:10,342 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2019-09-20 12:58:10,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 12:58:10,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-09-20 12:58:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:10,343 INFO L225 Difference]: With dead ends: 52 [2019-09-20 12:58:10,344 INFO L226 Difference]: Without dead ends: 40 [2019-09-20 12:58:10,344 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:10,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-20 12:58:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-20 12:58:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-20 12:58:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-09-20 12:58:10,353 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 18 [2019-09-20 12:58:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:10,353 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-09-20 12:58:10,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:10,353 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-09-20 12:58:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-20 12:58:10,354 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:10,354 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:10,355 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:10,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:10,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1679618026, now seen corresponding path program 1 times [2019-09-20 12:58:10,355 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:10,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:10,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:10,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:10,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:10,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:10,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 12:58:10,416 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 12:58:10,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 12:58:10,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:10,417 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 6 states. [2019-09-20 12:58:10,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:10,528 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2019-09-20 12:58:10,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 12:58:10,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-09-20 12:58:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:10,530 INFO L225 Difference]: With dead ends: 55 [2019-09-20 12:58:10,530 INFO L226 Difference]: Without dead ends: 53 [2019-09-20 12:58:10,531 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 12:58:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-09-20 12:58:10,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2019-09-20 12:58:10,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-09-20 12:58:10,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2019-09-20 12:58:10,551 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 19 [2019-09-20 12:58:10,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:10,551 INFO L475 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2019-09-20 12:58:10,551 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 12:58:10,552 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2019-09-20 12:58:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-09-20 12:58:10,554 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:10,555 INFO L407 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:10,555 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:10,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2122625936, now seen corresponding path program 1 times [2019-09-20 12:58:10,556 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:10,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:10,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:10,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-20 12:58:10,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:58:10,708 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-20 12:58:10,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 12:58:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:10,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-20 12:58:10,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:58:10,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:58:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-20 12:58:10,954 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:58:10,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 14 [2019-09-20 12:58:10,955 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-20 12:58:10,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-20 12:58:10,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-09-20 12:58:10,956 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 14 states. [2019-09-20 12:58:11,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:11,158 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2019-09-20 12:58:11,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 12:58:11,159 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2019-09-20 12:58:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:11,160 INFO L225 Difference]: With dead ends: 51 [2019-09-20 12:58:11,160 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:58:11,161 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2019-09-20 12:58:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:58:11,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:58:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:58:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:58:11,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-09-20 12:58:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:11,162 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:58:11,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-20 12:58:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:58:11,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:58:11,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:58:11,352 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:58:11,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:11,352 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:11,353 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:58:11,353 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:11,353 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:11,353 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,354 INFO L446 ceAbstractionStarter]: At program point L60(lines 11 63) the Hoare annotation is: true [2019-09-20 12:58:11,354 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,354 INFO L439 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,354 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 63) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-09-20 12:58:11,355 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2019-09-20 12:58:11,357 INFO L439 ceAbstractionStarter]: At program point L40-1(lines 40 54) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,357 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,357 INFO L439 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,358 INFO L443 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2019-09-20 12:58:11,358 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-09-20 12:58:11,358 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-09-20 12:58:11,359 INFO L439 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,359 INFO L439 ceAbstractionStarter]: At program point L20-1(line 20) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,361 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2019-09-20 12:58:11,361 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-09-20 12:58:11,361 INFO L439 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,362 INFO L439 ceAbstractionStarter]: At program point L46-1(line 46) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,362 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 63) no Hoare annotation was computed. [2019-09-20 12:58:11,362 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,362 INFO L439 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,362 INFO L439 ceAbstractionStarter]: At program point L34-2(lines 34 58) the Hoare annotation is: (and (<= 1 main_~tagbuf_len~0) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,363 INFO L439 ceAbstractionStarter]: At program point L34-3(lines 34 58) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,363 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 63) the Hoare annotation is: true [2019-09-20 12:58:11,363 INFO L439 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,363 INFO L439 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,364 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 30) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2019-09-20 12:58:11,366 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 30) the Hoare annotation is: (and (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-09-20 12:58:11,367 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-09-20 12:58:11,367 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-09-20 12:58:11,367 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-20 12:58:11,369 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:11,369 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-20 12:58:11,369 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-20 12:58:11,370 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-20 12:58:11,370 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:58:11,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:11 BoogieIcfgContainer [2019-09-20 12:58:11,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:11,407 INFO L168 Benchmark]: Toolchain (without parser) took 2560.78 ms. Allocated memory was 138.4 MB in the beginning and 220.7 MB in the end (delta: 82.3 MB). Free memory was 84.9 MB in the beginning and 122.6 MB in the end (delta: -37.7 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,409 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.51 ms. Allocated memory is still 138.4 MB. Free memory was 84.6 MB in the beginning and 74.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,413 INFO L168 Benchmark]: Boogie Preprocessor took 126.35 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 74.6 MB in the beginning and 176.7 MB in the end (delta: -102.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,415 INFO L168 Benchmark]: RCFGBuilder took 337.85 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 160.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,416 INFO L168 Benchmark]: TraceAbstraction took 1810.83 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 160.1 MB in the beginning and 122.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:11,425 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.51 ms. Allocated memory is still 138.4 MB. Free memory was 84.6 MB in the beginning and 74.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.35 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 74.6 MB in the beginning and 176.7 MB in the end (delta: -102.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.85 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 160.7 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1810.83 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 160.1 MB in the beginning and 122.6 MB in the end (delta: 37.6 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: t <= tagbuf_len && 0 <= t - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (1 <= tagbuf_len && t <= tagbuf_len) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 74 SDslu, 518 SDs, 0 SdLazy, 267 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=4, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 59 PreInvPairs, 79 NumberOfFragments, 175 HoareAnnotationTreeSize, 59 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 7884 SizeOfPredicates, 4 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 34/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...