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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:02:12,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:02:12,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:02:12,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:02:12,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:02:12,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:02:12,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:02:12,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:02:12,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:02:12,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:02:12,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:02:12,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:02:12,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:02:12,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:02:12,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:02:12,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:02:12,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:02:12,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:02:12,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:02:12,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:02:12,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:02:12,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:02:12,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:02:12,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:02:12,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:02:12,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:02:12,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:02:12,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:02:12,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:02:12,469 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:02:12,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:02:12,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:02:12,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:02:12,472 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:02:12,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:02:12,472 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:02:12,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:02:12,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:02:12,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:02:12,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:02:12,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:02:12,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:02:12,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:02:12,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:02:12,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:02:12,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:02:12,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:02:12,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:02:12,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:02:12,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:02:12,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:02:12,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:02:12,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:02:12,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:02:12,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:02:12,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:02:12,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:02:12,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:02:12,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:02:12,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:02:12,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:02:12,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:02:12,783 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:02:12,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i [2019-10-15 03:02:12,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad78237b7/7aecebe4fe954062adabbb161484535f/FLAG0b74bf58f [2019-10-15 03:02:13,367 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:02:13,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i [2019-10-15 03:02:13,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad78237b7/7aecebe4fe954062adabbb161484535f/FLAG0b74bf58f [2019-10-15 03:02:13,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad78237b7/7aecebe4fe954062adabbb161484535f [2019-10-15 03:02:13,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:02:13,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:02:13,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:13,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:02:13,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:02:13,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:13" (1/1) ... [2019-10-15 03:02:13,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a120bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:13, skipping insertion in model container [2019-10-15 03:02:13,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:13" (1/1) ... [2019-10-15 03:02:13,759 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:02:13,782 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:02:13,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:14,008 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:02:14,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:14,067 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:02:14,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14 WrapperNode [2019-10-15 03:02:14,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:14,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:02:14,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:02:14,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:02:14,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... [2019-10-15 03:02:14,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:02:14,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:02:14,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:02:14,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:02:14,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:02:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:02:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:02:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:02:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:02:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:02:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:02:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:02:14,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:02:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:02:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:02:14,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:02:14,541 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:02:14,541 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 03:02:14,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:14 BoogieIcfgContainer [2019-10-15 03:02:14,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:02:14,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:02:14,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:02:14,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:02:14,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:02:13" (1/3) ... [2019-10-15 03:02:14,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b581d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:14, skipping insertion in model container [2019-10-15 03:02:14,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:14" (2/3) ... [2019-10-15 03:02:14,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b581d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:14, skipping insertion in model container [2019-10-15 03:02:14,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:14" (3/3) ... [2019-10-15 03:02:14,554 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2019-10-15 03:02:14,568 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:02:14,578 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:02:14,590 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:02:14,622 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:02:14,623 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:02:14,623 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:02:14,623 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:02:14,625 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:02:14,626 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:02:14,626 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:02:14,626 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:02:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-15 03:02:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:02:14,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:14,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:14,658 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:14,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:14,666 INFO L82 PathProgramCache]: Analyzing trace with hash -622449221, now seen corresponding path program 1 times [2019-10-15 03:02:14,676 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:14,677 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328800373] [2019-10-15 03:02:14,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:14,677 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:14,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:14,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328800373] [2019-10-15 03:02:14,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:14,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:02:14,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954748548] [2019-10-15 03:02:14,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:02:14,803 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:14,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:02:14,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:02:14,821 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-15 03:02:14,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:14,862 INFO L93 Difference]: Finished difference Result 84 states and 149 transitions. [2019-10-15 03:02:14,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:02:14,865 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-15 03:02:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:14,884 INFO L225 Difference]: With dead ends: 84 [2019-10-15 03:02:14,884 INFO L226 Difference]: Without dead ends: 41 [2019-10-15 03:02:14,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:02:14,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-15 03:02:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-10-15 03:02:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-15 03:02:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2019-10-15 03:02:14,962 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 11 [2019-10-15 03:02:14,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:14,963 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2019-10-15 03:02:14,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:02:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2019-10-15 03:02:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 03:02:14,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:14,965 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:14,965 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:14,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1516576392, now seen corresponding path program 1 times [2019-10-15 03:02:14,966 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:14,966 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605990055] [2019-10-15 03:02:14,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:14,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:14,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:15,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605990055] [2019-10-15 03:02:15,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:15,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:02:15,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126065313] [2019-10-15 03:02:15,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:02:15,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:15,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:02:15,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:02:15,074 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand 5 states. [2019-10-15 03:02:15,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:15,351 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2019-10-15 03:02:15,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:02:15,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-15 03:02:15,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:15,354 INFO L225 Difference]: With dead ends: 47 [2019-10-15 03:02:15,354 INFO L226 Difference]: Without dead ends: 45 [2019-10-15 03:02:15,356 INFO L600 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 [2019-10-15 03:02:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-15 03:02:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-10-15 03:02:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-15 03:02:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2019-10-15 03:02:15,376 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 12 [2019-10-15 03:02:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:15,377 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2019-10-15 03:02:15,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:02:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2019-10-15 03:02:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 03:02:15,378 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:15,378 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:15,379 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1590310903, now seen corresponding path program 1 times [2019-10-15 03:02:15,380 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:15,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915657894] [2019-10-15 03:02:15,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:15,380 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:15,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:15,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:15,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915657894] [2019-10-15 03:02:15,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:15,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:02:15,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373312823] [2019-10-15 03:02:15,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:02:15,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:15,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:02:15,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:02:15,434 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand 5 states. [2019-10-15 03:02:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:15,528 INFO L93 Difference]: Finished difference Result 60 states and 82 transitions. [2019-10-15 03:02:15,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:02:15,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-15 03:02:15,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:15,531 INFO L225 Difference]: With dead ends: 60 [2019-10-15 03:02:15,531 INFO L226 Difference]: Without dead ends: 52 [2019-10-15 03:02:15,532 INFO L600 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 [2019-10-15 03:02:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-15 03:02:15,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2019-10-15 03:02:15,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-10-15 03:02:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2019-10-15 03:02:15,545 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 17 [2019-10-15 03:02:15,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:15,545 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2019-10-15 03:02:15,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:02:15,546 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2019-10-15 03:02:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 03:02:15,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:15,548 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:15,548 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:15,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:15,549 INFO L82 PathProgramCache]: Analyzing trace with hash -327620479, now seen corresponding path program 1 times [2019-10-15 03:02:15,549 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:15,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938812154] [2019-10-15 03:02:15,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:15,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:15,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:02:15,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938812154] [2019-10-15 03:02:15,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369520512] [2019-10-15 03:02:15,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:15,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-15 03:02:15,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:02:15,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:02:15,964 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:02:16,034 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:16,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:16,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:16,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:16,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:02:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:02:16,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1631791811] [2019-10-15 03:02:16,207 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-15 03:02:16,207 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:02:16,214 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:02:16,224 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:02:16,225 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:02:16,322 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:02:16,782 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2019-10-15 03:02:16,846 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:02:16,850 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:02:17,218 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:02:17,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 9, 10] total 25 [2019-10-15 03:02:17,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997786597] [2019-10-15 03:02:17,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 03:02:17,222 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:17,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 03:02:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2019-10-15 03:02:17,225 INFO L87 Difference]: Start difference. First operand 50 states and 65 transitions. Second operand 25 states. [2019-10-15 03:02:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:17,574 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2019-10-15 03:02:17,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:02:17,575 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 32 [2019-10-15 03:02:17,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:17,576 INFO L225 Difference]: With dead ends: 50 [2019-10-15 03:02:17,576 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:02:17,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:02:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:02:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:02:17,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:02:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:02:17,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-15 03:02:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:17,579 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:02:17,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 03:02:17,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:02:17,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:02:17,780 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:17,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:02:18,034 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:02:18,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:18,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:18,035 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:02:18,035 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:02:18,035 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:02:18,036 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,036 INFO L446 ceAbstractionStarter]: At program point L60(lines 11 63) the Hoare annotation is: true [2019-10-15 03:02:18,036 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,036 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,036 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 63) no Hoare annotation was computed. [2019-10-15 03:02:18,036 INFO L443 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2019-10-15 03:02:18,037 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2019-10-15 03:02:18,037 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-10-15 03:02:18,037 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-15 03:02:18,037 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2019-10-15 03:02:18,037 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,038 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)) [2019-10-15 03:02:18,038 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)) [2019-10-15 03:02:18,038 INFO L443 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2019-10-15 03:02:18,038 INFO L443 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-10-15 03:02:18,038 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-15 03:02:18,039 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)) [2019-10-15 03:02:18,039 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)) [2019-10-15 03:02:18,039 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2019-10-15 03:02:18,039 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-10-15 03:02:18,039 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)) [2019-10-15 03:02:18,039 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)) [2019-10-15 03:02:18,040 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,040 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,040 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) (<= main_~tagbuf_len~0 2147483646)) [2019-10-15 03:02:18,040 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,040 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 63) the Hoare annotation is: true [2019-10-15 03:02:18,041 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,041 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,041 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) (<= main_~tagbuf_len~0 2147483646)) [2019-10-15 03:02:18,041 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) (<= main_~tagbuf_len~0 2147483646) (not (= main_~tagbuf_len~0 main_~t~0))) [2019-10-15 03:02:18,042 INFO L443 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-10-15 03:02:18,042 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-10-15 03:02:18,042 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:02:18,042 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:18,042 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:02:18,043 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:02:18,043 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:02:18,043 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:18,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:02:18 BoogieIcfgContainer [2019-10-15 03:02:18,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:02:18,065 INFO L168 Benchmark]: Toolchain (without parser) took 4332.36 ms. Allocated memory was 137.4 MB in the beginning and 245.9 MB in the end (delta: 108.5 MB). Free memory was 100.8 MB in the beginning and 156.0 MB in the end (delta: -55.2 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,071 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.84 ms. Allocated memory is still 137.4 MB. Free memory was 100.6 MB in the beginning and 90.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,074 INFO L168 Benchmark]: Boogie Preprocessor took 135.06 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 90.7 MB in the beginning and 180.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,075 INFO L168 Benchmark]: RCFGBuilder took 339.23 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 163.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,076 INFO L168 Benchmark]: TraceAbstraction took 3516.92 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 163.9 MB in the beginning and 156.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:18,087 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.84 ms. Allocated memory is still 137.4 MB. Free memory was 100.6 MB in the beginning and 90.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.06 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 90.7 MB in the beginning and 180.7 MB in the end (delta: -90.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 339.23 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 163.9 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3516.92 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 163.9 MB in the beginning and 156.0 MB in the end (delta: 7.9 MB). Peak memory consumption was 51.4 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) && tagbuf_len <= 2147483646 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((1 <= tagbuf_len && t <= tagbuf_len) && 0 <= t) && tagbuf_len <= 2147483646 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 189 SDtfs, 57 SDslu, 399 SDs, 0 SdLazy, 274 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=3, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 59 PreInvPairs, 79 NumberOfFragments, 211 HoareAnnotationTreeSize, 59 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 9821 SizeOfPredicates, 4 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 44/71 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 643, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 60, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 13, TOOLS_POST_CALL_APPLICATIONS: 22, TOOLS_POST_CALL_TIME[ms]: 78, TOOLS_POST_RETURN_APPLICATIONS: 18, TOOLS_POST_RETURN_TIME[ms]: 35, TOOLS_QUANTIFIERELIM_APPLICATIONS: 67, TOOLS_QUANTIFIERELIM_TIME[ms]: 106, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 63, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 37, DOMAIN_JOIN_TIME[ms]: 332, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 44, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME[ms]: 35, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 317, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 317, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 18, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 22, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 22, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 11, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 24, DAG_COMPRESSION_PROCESSED_NODES: 129, DAG_COMPRESSION_RETAINED_NODES: 67, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...