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-acceleration/multivar_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:13:13,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:13:13,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:13:13,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:13:13,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:13:13,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:13:13,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:13:13,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:13:13,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:13:13,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:13:13,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:13:13,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:13:13,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:13:13,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:13:13,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:13:13,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:13:13,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:13:13,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:13:13,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:13:13,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:13:13,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:13:13,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:13:13,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:13:13,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:13:13,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 11:13:13,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 11:13:13,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 11:13:13,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 11:13:13,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 11:13:13,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 11:13:13,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:13:13,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:13:13,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:13:13,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:13:13,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:13:13,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:13:13,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:13:13,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:13:13,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:13:13,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:13:13,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:13:13,142 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 11:13:13,156 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:13:13,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:13:13,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:13:13,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:13:13,158 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:13:13,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:13:13,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:13:13,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:13:13,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:13:13,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:13:13,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:13:13,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:13:13,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:13:13,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:13:13,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:13:13,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:13:13,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:13:13,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:13:13,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:13:13,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:13:13,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:13:13,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:13:13,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:13:13,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:13:13,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:13:13,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:13:13,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:13:13,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:13:13,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:13:13,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:13:13,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:13:13,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:13:13,207 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:13:13,207 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:13:13,208 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2019-10-02 11:13:13,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d37a05f/723682050e4b4a67a94b4f8bd44f0df0/FLAGea7a300ba [2019-10-02 11:13:13,701 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:13:13,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2019-10-02 11:13:13,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d37a05f/723682050e4b4a67a94b4f8bd44f0df0/FLAGea7a300ba [2019-10-02 11:13:14,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7d37a05f/723682050e4b4a67a94b4f8bd44f0df0 [2019-10-02 11:13:14,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:13:14,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:13:14,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:13:14,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:13:14,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:13:14,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a2e2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14, skipping insertion in model container [2019-10-02 11:13:14,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,142 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:13:14,158 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:13:14,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:13:14,383 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:13:14,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:13:14,417 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:13:14,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14 WrapperNode [2019-10-02 11:13:14,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:13:14,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:13:14,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:13:14,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:13:14,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (1/1) ... [2019-10-02 11:13:14,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:13:14,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:13:14,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:13:14,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:13:14,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (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 [2019-10-02 11:13:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:13:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:13:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 11:13:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:13:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:13:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 11:13:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:13:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:13:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:13:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:13:14,760 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:13:14,761 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 11:13:14,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:13:14 BoogieIcfgContainer [2019-10-02 11:13:14,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:13:14,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:13:14,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:13:14,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:13:14,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:13:14" (1/3) ... [2019-10-02 11:13:14,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a78d9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:13:14, skipping insertion in model container [2019-10-02 11:13:14,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:13:14" (2/3) ... [2019-10-02 11:13:14,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a78d9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:13:14, skipping insertion in model container [2019-10-02 11:13:14,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:13:14" (3/3) ... [2019-10-02 11:13:14,770 INFO L109 eAbstractionObserver]: Analyzing ICFG multivar_1-1.c [2019-10-02 11:13:14,779 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:13:14,787 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:13:14,804 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:13:14,833 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:13:14,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:13:14,834 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:13:14,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:13:14,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:13:14,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:13:14,834 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:13:14,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:13:14,835 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:13:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-02 11:13:14,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-02 11:13:14,853 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:13:14,853 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:13:14,855 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:13:14,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:13:14,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2019-10-02 11:13:14,861 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:13:14,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:13:14,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:14,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:13:14,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:13:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:13:15,136 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 11:13:15,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:13:15,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 11:13:15,143 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 11:13:15,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 11:13:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:13:15,162 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-10-02 11:13:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:13:15,252 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-10-02 11:13:15,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 11:13:15,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-02 11:13:15,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:13:15,261 INFO L225 Difference]: With dead ends: 26 [2019-10-02 11:13:15,262 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:13:15,265 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:13:15,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:13:15,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:13:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:13:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:13:15,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-02 11:13:15,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:13:15,289 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:13:15,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 11:13:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:13:15,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:13:15,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:13:15,325 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-02 11:13:15,325 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:13:15,325 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:13:15,326 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-02 11:13:15,326 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:13:15,326 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:13:15,326 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 21) the Hoare annotation is: true [2019-10-02 11:13:15,327 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 21) no Hoare annotation was computed. [2019-10-02 11:13:15,327 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 18) the Hoare annotation is: (= main_~x~0 main_~y~0) [2019-10-02 11:13:15,327 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 21) no Hoare annotation was computed. [2019-10-02 11:13:15,327 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (= main_~x~0 main_~y~0) [2019-10-02 11:13:15,328 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-02 11:13:15,328 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-02 11:13:15,328 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-02 11:13:15,328 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-02 11:13:15,328 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-02 11:13:15,329 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-02 11:13:15,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:13:15 BoogieIcfgContainer [2019-10-02 11:13:15,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:13:15,348 INFO L168 Benchmark]: Toolchain (without parser) took 1220.74 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 87.3 MB in the beginning and 136.6 MB in the end (delta: -49.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,349 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.81 ms. Allocated memory is still 133.2 MB. Free memory was 87.1 MB in the beginning and 77.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,351 INFO L168 Benchmark]: Boogie Preprocessor took 117.45 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 77.9 MB in the beginning and 177.2 MB in the end (delta: -99.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,352 INFO L168 Benchmark]: RCFGBuilder took 225.64 ms. Allocated memory is still 200.3 MB. Free memory was 177.2 MB in the beginning and 165.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,353 INFO L168 Benchmark]: TraceAbstraction took 581.33 ms. Allocated memory is still 200.3 MB. Free memory was 165.1 MB in the beginning and 137.2 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-10-02 11:13:15,358 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 133.2 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 291.81 ms. Allocated memory is still 133.2 MB. Free memory was 87.1 MB in the beginning and 77.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.45 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 77.9 MB in the beginning and 177.2 MB in the end (delta: -99.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 225.64 ms. Allocated memory is still 200.3 MB. Free memory was 177.2 MB in the beginning and 165.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 581.33 ms. Allocated memory is still 200.3 MB. Free memory was 165.1 MB in the beginning and 137.2 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 25 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...