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/trex03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:57:41,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:57:41,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:57:41,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:57:41,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:57:41,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:57:41,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:57:41,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:57:41,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:57:41,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:57:41,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:57:41,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:57:41,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:57:41,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:57:41,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:57:41,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:57:41,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:57:41,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:57:41,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:57:41,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:57:41,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:57:41,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:57:41,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:57:41,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:57:41,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:57:41,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:57:41,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:57:41,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:57:41,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 12:57:41,273 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:57:41,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:57:41,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:57:41,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:57:41,277 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:57:41,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:57:41,277 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:57:41,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:57:41,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:57:41,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:57:41,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:57:41,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:57:41,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:57:41,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:57:41,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:57:41,279 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:57:41,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:57:41,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:57:41,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:57:41,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:57:41,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:57:41,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:41,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:57:41,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:57:41,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:57:41,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:57:41,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:57:41,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:57:41,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:57:41,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:57:41,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:57:41,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:57:41,346 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:57:41,347 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:57:41,347 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-2.c [2019-09-20 12:57:41,416 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391f763f5/65cc7ac5f2e04376abc94c3f970dbf7f/FLAGe50157b37 [2019-09-20 12:57:41,850 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:57:41,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-2.c [2019-09-20 12:57:41,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391f763f5/65cc7ac5f2e04376abc94c3f970dbf7f/FLAGe50157b37 [2019-09-20 12:57:42,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391f763f5/65cc7ac5f2e04376abc94c3f970dbf7f [2019-09-20 12:57:42,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:57:42,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:57:42,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:42,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:57:42,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:57:42,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a499990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42, skipping insertion in model container [2019-09-20 12:57:42,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,251 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:57:42,268 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:57:42,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:42,486 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:57:42,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:42,515 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:57:42,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42 WrapperNode [2019-09-20 12:57:42,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:42,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:57:42,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:57:42,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:57:42,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... [2019-09-20 12:57:42,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:57:42,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:57:42,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:57:42,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:57:42,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:42,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:57:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:57:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:57:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:57:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:57:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:57:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-20 12:57:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-20 12:57:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:57:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:57:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:57:42,877 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:57:42,877 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:57:42,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:42 BoogieIcfgContainer [2019-09-20 12:57:42,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:57:42,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:57:42,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:57:42,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:57:42,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:57:42" (1/3) ... [2019-09-20 12:57:42,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7257690a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:42, skipping insertion in model container [2019-09-20 12:57:42,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:42" (2/3) ... [2019-09-20 12:57:42,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7257690a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:42, skipping insertion in model container [2019-09-20 12:57:42,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:42" (3/3) ... [2019-09-20 12:57:42,903 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-2.c [2019-09-20 12:57:42,916 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:57:42,932 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:57:42,963 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:57:42,994 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:57:42,995 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:57:42,995 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:57:42,995 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:57:42,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:57:42,996 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:57:42,996 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:57:42,996 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:57:42,996 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:57:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-20 12:57:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 12:57:43,017 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:43,018 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:43,020 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:43,024 INFO L82 PathProgramCache]: Analyzing trace with hash -859010367, now seen corresponding path program 1 times [2019-09-20 12:57:43,026 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:43,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:43,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:43,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:43,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:43,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:43,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:43,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:57:43,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:57:43,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:57:43,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:43,143 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-09-20 12:57:43,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:43,159 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2019-09-20 12:57:43,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:57:43,161 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-20 12:57:43,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:43,167 INFO L225 Difference]: With dead ends: 33 [2019-09-20 12:57:43,167 INFO L226 Difference]: Without dead ends: 14 [2019-09-20 12:57:43,170 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:43,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-20 12:57:43,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-20 12:57:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-20 12:57:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-09-20 12:57:43,198 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-09-20 12:57:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:43,199 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-09-20 12:57:43,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:57:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-09-20 12:57:43,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 12:57:43,200 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:43,200 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:43,201 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:43,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:43,201 INFO L82 PathProgramCache]: Analyzing trace with hash -873786703, now seen corresponding path program 1 times [2019-09-20 12:57:43,201 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:43,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:43,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:43,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:43,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:43,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:43,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:43,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:57:43,325 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:57:43,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:57:43,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:57:43,326 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2019-09-20 12:57:43,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:43,384 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-09-20 12:57:43,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 12:57:43,384 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-20 12:57:43,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:43,385 INFO L225 Difference]: With dead ends: 14 [2019-09-20 12:57:43,385 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:57:43,386 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:57:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:57:43,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:57:43,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:57:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:57:43,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-20 12:57:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:43,388 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:57:43,388 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:57:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:57:43,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:57:43,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:57:43,431 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:57:43,432 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:43,432 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:43,432 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:57:43,433 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:57:43,433 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:57:43,433 INFO L443 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-09-20 12:57:43,433 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 29) no Hoare annotation was computed. [2019-09-20 12:57:43,433 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2019-09-20 12:57:43,434 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 20 22) no Hoare annotation was computed. [2019-09-20 12:57:43,434 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 29) no Hoare annotation was computed. [2019-09-20 12:57:43,434 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 29) the Hoare annotation is: true [2019-09-20 12:57:43,434 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2019-09-20 12:57:43,434 INFO L446 ceAbstractionStarter]: At program point L18-2(lines 18 25) the Hoare annotation is: true [2019-09-20 12:57:43,435 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 25) the Hoare annotation is: (or (= main_~x3~0 (* 4294967296 (div main_~x3~0 4294967296))) (= (* 4294967296 (div main_~x2~0 4294967296)) main_~x2~0) (= (* 4294967296 (div main_~x1~0 4294967296)) main_~x1~0)) [2019-09-20 12:57:43,435 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-20 12:57:43,435 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-20 12:57:43,436 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:57:43,436 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-20 12:57:43,436 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-20 12:57:43,437 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:57:43,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:57:43 BoogieIcfgContainer [2019-09-20 12:57:43,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:57:43,447 INFO L168 Benchmark]: Toolchain (without parser) took 1210.95 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 85.1 MB in the beginning and 129.9 MB in the end (delta: -44.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,448 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.15 ms. Allocated memory is still 137.4 MB. Free memory was 84.9 MB in the beginning and 75.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,450 INFO L168 Benchmark]: Boogie Preprocessor took 112.27 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 75.3 MB in the beginning and 175.1 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,451 INFO L168 Benchmark]: RCFGBuilder took 250.56 ms. Allocated memory is still 197.7 MB. Free memory was 175.1 MB in the beginning and 163.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,452 INFO L168 Benchmark]: TraceAbstraction took 562.38 ms. Allocated memory is still 197.7 MB. Free memory was 162.2 MB in the beginning and 129.9 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:43,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.15 ms. Allocated memory is still 137.4 MB. Free memory was 84.9 MB in the beginning and 75.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.27 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 75.3 MB in the beginning and 175.1 MB in the end (delta: -99.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 250.56 ms. Allocated memory is still 197.7 MB. Free memory was 175.1 MB in the beginning and 163.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 562.38 ms. Allocated memory is still 197.7 MB. Free memory was 162.2 MB in the beginning and 129.9 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 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: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 32 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 28 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 405 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...