java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:30:07,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:30:07,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:30:07,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:30:07,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:30:07,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:30:07,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:30:07,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:30:07,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:30:07,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:30:07,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:30:07,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:30:07,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:30:07,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:30:07,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:30:07,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:30:07,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:30:07,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:30:07,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:30:07,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:30:07,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:30:07,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:30:07,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:30:07,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:30:07,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:30:07,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:30:07,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:30:07,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:30:07,204 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 [2019-10-02 11:30:07,220 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:30:07,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:30:07,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:30:07,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:30:07,223 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:30:07,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:30:07,223 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:30:07,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:30:07,224 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:30:07,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:30:07,225 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:30:07,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:30:07,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:30:07,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:30:07,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:30:07,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:30:07,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:30:07,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:30:07,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:30:07,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:30:07,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:30:07,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:30:07,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:30:07,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:30:07,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:30:07,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:30:07,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:30:07,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:30:07,278 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:30:07,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-10-02 11:30:07,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97508df08/8889918187b9468ea0668ebc470e2c45/FLAG511b4a0c2 [2019-10-02 11:30:07,778 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:30:07,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2019-10-02 11:30:07,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97508df08/8889918187b9468ea0668ebc470e2c45/FLAG511b4a0c2 [2019-10-02 11:30:08,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97508df08/8889918187b9468ea0668ebc470e2c45 [2019-10-02 11:30:08,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:30:08,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:30:08,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:30:08,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:30:08,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:30:08,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb945bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08, skipping insertion in model container [2019-10-02 11:30:08,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,140 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:30:08,158 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:30:08,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:30:08,359 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:30:08,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:30:08,405 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:30:08,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08 WrapperNode [2019-10-02 11:30:08,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:30:08,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:30:08,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:30:08,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:30:08,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... [2019-10-02 11:30:08,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:30:08,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:30:08,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:30:08,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:30:08,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:30:08,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:30:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:30:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:30:08,599 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:30:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:30:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-02 11:30:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 11:30:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:30:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:30:08,848 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:30:08,849 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-02 11:30:08,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:30:08 BoogieIcfgContainer [2019-10-02 11:30:08,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:30:08,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:30:08,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:30:08,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:30:08,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:30:08" (1/3) ... [2019-10-02 11:30:08,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49718aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:30:08, skipping insertion in model container [2019-10-02 11:30:08,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:30:08" (2/3) ... [2019-10-02 11:30:08,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49718aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:30:08, skipping insertion in model container [2019-10-02 11:30:08,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:30:08" (3/3) ... [2019-10-02 11:30:08,859 INFO L109 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2019-10-02 11:30:08,870 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:30:08,879 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:30:08,899 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:30:08,945 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:30:08,946 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:30:08,946 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:30:08,946 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:30:08,946 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:30:08,947 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:30:08,947 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:30:08,947 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:30:08,947 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:30:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-02 11:30:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 11:30:08,971 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:30:08,972 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:30:08,973 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:30:08,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:30:08,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1522547275, now seen corresponding path program 1 times [2019-10-02 11:30:08,980 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:30:08,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:30:09,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:30:09,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:30:09,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:30:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:30:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:30:09,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:30:09,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 11:30:09,120 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 11:30:09,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 11:30:09,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 11:30:09,137 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-10-02 11:30:09,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:30:09,163 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-10-02 11:30:09,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 11:30:09,165 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-02 11:30:09,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:30:09,174 INFO L225 Difference]: With dead ends: 36 [2019-10-02 11:30:09,174 INFO L226 Difference]: Without dead ends: 15 [2019-10-02 11:30:09,179 INFO L640 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 [2019-10-02 11:30:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-02 11:30:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-02 11:30:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-02 11:30:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-02 11:30:09,225 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2019-10-02 11:30:09,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:30:09,226 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-02 11:30:09,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 11:30:09,226 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-02 11:30:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-02 11:30:09,227 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:30:09,227 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:30:09,228 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:30:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:30:09,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1742365231, now seen corresponding path program 1 times [2019-10-02 11:30:09,229 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:30:09,229 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:30:09,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:30:09,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:30:09,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:30:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:30:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:30:09,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:30:09,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 11:30:09,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 11:30:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 11:30:09,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 11:30:09,453 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 4 states. [2019-10-02 11:30:09,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:30:09,504 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-10-02 11:30:09,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 11:30:09,505 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-02 11:30:09,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:30:09,506 INFO L225 Difference]: With dead ends: 15 [2019-10-02 11:30:09,507 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:30:09,508 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:30:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:30:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:30:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:30:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:30:09,511 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-02 11:30:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:30:09,511 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:30:09,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 11:30:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:30:09,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:30:09,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:30:09,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:30:09,556 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:30:09,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:30:09,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:30:09,557 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 11:30:09,558 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:30:09,558 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:30:09,558 INFO L446 ceAbstractionStarter]: At program point L27-2(lines 27 33) the Hoare annotation is: true [2019-10-02 11:30:09,558 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 37) no Hoare annotation was computed. [2019-10-02 11:30:09,558 INFO L446 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2019-10-02 11:30:09,559 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 37) no Hoare annotation was computed. [2019-10-02 11:30:09,559 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 37) the Hoare annotation is: true [2019-10-02 11:30:09,559 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-10-02 11:30:09,559 INFO L446 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: true [2019-10-02 11:30:09,560 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-10-02 11:30:09,560 INFO L443 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2019-10-02 11:30:09,560 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-02 11:30:09,561 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-02 11:30:09,561 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-02 11:30:09,562 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-02 11:30:09,562 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-02 11:30:09,562 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-02 11:30:09,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:30:09 BoogieIcfgContainer [2019-10-02 11:30:09,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:30:09,577 INFO L168 Benchmark]: Toolchain (without parser) took 1452.85 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 88.9 MB in the beginning and 131.4 MB in the end (delta: -42.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,579 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.27 ms. Allocated memory is still 132.6 MB. Free memory was 88.4 MB in the beginning and 78.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,589 INFO L168 Benchmark]: Boogie Preprocessor took 134.47 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.4 MB in the beginning and 176.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,590 INFO L168 Benchmark]: RCFGBuilder took 308.97 ms. Allocated memory is still 199.8 MB. Free memory was 176.0 MB in the beginning and 161.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,592 INFO L168 Benchmark]: TraceAbstraction took 722.35 ms. Allocated memory is still 199.8 MB. Free memory was 161.4 MB in the beginning and 131.4 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-10-02 11:30:09,607 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.27 ms. Allocated memory is still 132.6 MB. Free memory was 88.4 MB in the beginning and 78.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.47 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.4 MB in the beginning and 176.0 MB in the end (delta: -97.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 308.97 ms. Allocated memory is still 199.8 MB. Free memory was 176.0 MB in the beginning and 161.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 722.35 ms. Allocated memory is still 199.8 MB. Free memory was 161.4 MB in the beginning and 131.4 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 25 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...