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-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:58:40,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:40,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:40,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:58:40,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:58:40,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:58:40,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:58:40,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:58:40,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:58:40,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:58:40,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:58:40,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:58:40,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:40,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:40,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:40,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:40,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:40,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:40,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:40,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:40,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:40,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:41,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:41,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:41,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:41,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:41,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:41,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:41,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 12:58:41,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:41,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:41,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:41,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:41,031 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:41,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:41,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:41,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:41,033 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:41,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:41,033 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:41,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:41,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:41,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:41,034 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:41,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:41,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:41,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:41,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:41,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:41,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:41,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:41,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:41,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:41,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:41,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:41,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:41,087 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:41,088 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:41,088 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-09-20 12:58:41,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0789b5eed/39830e8421f04ed18657f771d5f043e3/FLAGd0adcd5e6 [2019-09-20 12:58:41,624 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:41,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-09-20 12:58:41,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0789b5eed/39830e8421f04ed18657f771d5f043e3/FLAGd0adcd5e6 [2019-09-20 12:58:42,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0789b5eed/39830e8421f04ed18657f771d5f043e3 [2019-09-20 12:58:42,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:42,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:42,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:42,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:42,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:42,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377f0a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42, skipping insertion in model container [2019-09-20 12:58:42,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,036 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:42,057 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:42,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:42,320 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:42,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:42,356 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:42,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42 WrapperNode [2019-09-20 12:58:42,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:42,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:42,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:42,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:42,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (1/1) ... [2019-09-20 12:58:42,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:42,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:42,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:42,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:42,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (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 12:58:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:58:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:42,788 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:42,789 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 12:58:42,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:42 BoogieIcfgContainer [2019-09-20 12:58:42,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:42,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:42,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:42,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:42,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:42" (1/3) ... [2019-09-20 12:58:42,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27015278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:42, skipping insertion in model container [2019-09-20 12:58:42,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:42" (2/3) ... [2019-09-20 12:58:42,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27015278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:42, skipping insertion in model container [2019-09-20 12:58:42,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:42" (3/3) ... [2019-09-20 12:58:42,800 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2019-09-20 12:58:42,821 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:42,841 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:42,874 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:42,914 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:42,915 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:42,915 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:42,915 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:42,915 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:42,916 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:42,916 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:42,916 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:42,916 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-09-20 12:58:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 12:58:42,965 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:42,969 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:42,975 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:42,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:42,989 INFO L82 PathProgramCache]: Analyzing trace with hash 271538127, now seen corresponding path program 1 times [2019-09-20 12:58:42,991 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:42,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:43,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:43,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:43,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:43,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:58:43,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:58:43,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:58:43,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:58:43,117 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-09-20 12:58:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:43,138 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2019-09-20 12:58:43,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:58:43,139 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-20 12:58:43,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:43,148 INFO L225 Difference]: With dead ends: 36 [2019-09-20 12:58:43,148 INFO L226 Difference]: Without dead ends: 16 [2019-09-20 12:58:43,152 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:58:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-20 12:58:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-09-20 12:58:43,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-20 12:58:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-09-20 12:58:43,193 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-09-20 12:58:43,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:43,193 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-09-20 12:58:43,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:58:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-09-20 12:58:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 12:58:43,194 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:43,195 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:43,195 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:43,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:43,197 INFO L82 PathProgramCache]: Analyzing trace with hash 183026044, now seen corresponding path program 1 times [2019-09-20 12:58:43,197 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:43,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:43,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:43,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:43,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:43,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 12:58:43,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 12:58:43,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 12:58:43,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 12:58:43,314 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 3 states. [2019-09-20 12:58:43,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:43,353 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-09-20 12:58:43,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 12:58:43,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-09-20 12:58:43,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:43,355 INFO L225 Difference]: With dead ends: 27 [2019-09-20 12:58:43,355 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 12:58:43,356 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 12:58:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 12:58:43,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-09-20 12:58:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 12:58:43,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-09-20 12:58:43,362 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2019-09-20 12:58:43,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:43,362 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-09-20 12:58:43,362 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 12:58:43,362 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-09-20 12:58:43,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 12:58:43,363 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:43,363 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:43,364 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:43,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1587594336, now seen corresponding path program 1 times [2019-09-20 12:58:43,364 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:43,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:43,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:43,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:43,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:43,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 12:58:43,680 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:58:43,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:58:43,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:58:43,684 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 5 states. [2019-09-20 12:58:43,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:43,942 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2019-09-20 12:58:43,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 12:58:43,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-09-20 12:58:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:43,945 INFO L225 Difference]: With dead ends: 32 [2019-09-20 12:58:43,945 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:58:43,946 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:58:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:58:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:58:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:58:43,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-09-20 12:58:43,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:43,948 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:58:43,949 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:58:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:58:43,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:58:43,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:58:44,005 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-20 12:58:44,005 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:44,005 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:44,005 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:58:44,006 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:44,006 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:44,006 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 12297829383904690176 .cse0) (* 8589934592 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3)) 1431655765))) [2019-09-20 12:58:44,006 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 33) no Hoare annotation was computed. [2019-09-20 12:58:44,006 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-09-20 12:58:44,007 INFO L439 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= (* 2863311531 main_~x~0) (let ((.cse0 (div main_~x~0 4294967296))) (+ (* 12297829383904690176 .cse0) (* 8589934592 (div (+ main_~x~0 (* (- 4294967296) .cse0)) 3)) 1431655765))) (and (<= (div main_~y~0 4294967296) 0) (<= 1 main_~y~0))) [2019-09-20 12:58:44,007 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2019-09-20 12:58:44,007 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 33) no Hoare annotation was computed. [2019-09-20 12:58:44,007 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-09-20 12:58:44,007 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 33) the Hoare annotation is: true [2019-09-20 12:58:44,008 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2019-09-20 12:58:44,008 INFO L443 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2019-09-20 12:58:44,008 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 12 33) no Hoare annotation was computed. [2019-09-20 12:58:44,008 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 10) the Hoare annotation is: true [2019-09-20 12:58:44,008 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-09-20 12:58:44,008 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 10) no Hoare annotation was computed. [2019-09-20 12:58:44,009 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-09-20 12:58:44,009 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2019-09-20 12:58:44,009 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 6 10) no Hoare annotation was computed. [2019-09-20 12:58:44,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:44 BoogieIcfgContainer [2019-09-20 12:58:44,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:44,028 INFO L168 Benchmark]: Toolchain (without parser) took 2006.83 ms. Allocated memory was 129.0 MB in the beginning and 198.2 MB in the end (delta: 69.2 MB). Free memory was 83.5 MB in the beginning and 110.3 MB in the end (delta: -26.9 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,029 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 129.0 MB. Free memory was 101.7 MB in the beginning and 101.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.36 ms. Allocated memory is still 129.0 MB. Free memory was 83.2 MB in the beginning and 73.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,031 INFO L168 Benchmark]: Boogie Preprocessor took 162.21 ms. Allocated memory was 129.0 MB in the beginning and 198.2 MB in the end (delta: 69.2 MB). Free memory was 73.4 MB in the beginning and 174.2 MB in the end (delta: -100.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,032 INFO L168 Benchmark]: RCFGBuilder took 270.41 ms. Allocated memory is still 198.2 MB. Free memory was 174.2 MB in the beginning and 161.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,033 INFO L168 Benchmark]: TraceAbstraction took 1233.16 ms. Allocated memory is still 198.2 MB. Free memory was 161.6 MB in the beginning and 110.3 MB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:44,037 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 129.0 MB. Free memory was 101.7 MB in the beginning and 101.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 336.36 ms. Allocated memory is still 129.0 MB. Free memory was 83.2 MB in the beginning and 73.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.21 ms. Allocated memory was 129.0 MB in the beginning and 198.2 MB in the end (delta: 69.2 MB). Free memory was 73.4 MB in the beginning and 174.2 MB in the end (delta: -100.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 270.41 ms. Allocated memory is still 198.2 MB. Free memory was 174.2 MB in the beginning and 161.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1233.16 ms. Allocated memory is still 198.2 MB. Free memory was 161.6 MB in the beginning and 110.3 MB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 16]: Loop Invariant Derived loop invariant: 2863311531 * x <= 12297829383904690176 * (x / 4294967296) + 8589934592 * ((x + -4294967296 * (x / 4294967296)) / 3) + 1431655765 || (y / 4294967296 <= 0 && 1 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 7 SDslu, 55 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 59 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1941 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...