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-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:14:57,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:14:57,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:14:57,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:14:57,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:14:57,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:14:57,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:14:57,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:14:57,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:14:57,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:14:57,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:14:57,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:14:57,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:14:57,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:14:57,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:14:57,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:14:57,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:14:57,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:14:57,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:14:57,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:14:57,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:14:57,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:14:57,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:14:57,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:14:57,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:14:57,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:14:57,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:14:57,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:14:57,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:14:57,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:14:57,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:14:57,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:14:57,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:14:57,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:14:57,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:14:57,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:14:57,890 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 [2019-10-14 23:14:57,904 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:14:57,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:14:57,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:14:57,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:14:57,905 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:14:57,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:14:57,906 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:14:57,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:14:57,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:14:57,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:14:57,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:14:57,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:14:57,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:14:57,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:14:57,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:14:57,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:14:57,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:14:57,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:14:57,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:14:57,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:14:57,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:14:57,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:14:57,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:14:57,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:14:57,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:14:57,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:14:57,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:14:57,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:14:57,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:14:58,170 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:14:58,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:14:58,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:14:58,187 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:14:58,188 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:14:58,188 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2019-10-14 23:14:58,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c6172ce/8cbcd002a9804a568ee24a6a8712fc46/FLAG71c6cba4a [2019-10-14 23:14:58,752 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:14:58,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2019-10-14 23:14:58,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c6172ce/8cbcd002a9804a568ee24a6a8712fc46/FLAG71c6cba4a [2019-10-14 23:14:59,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c6172ce/8cbcd002a9804a568ee24a6a8712fc46 [2019-10-14 23:14:59,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:14:59,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:14:59,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:14:59,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:14:59,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:14:59,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388d384c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59, skipping insertion in model container [2019-10-14 23:14:59,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,172 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:14:59,187 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:14:59,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:14:59,330 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:14:59,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:14:59,357 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:14:59,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59 WrapperNode [2019-10-14 23:14:59,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:14:59,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:14:59,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:14:59,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:14:59,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (1/1) ... [2019-10-14 23:14:59,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:14:59,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:14:59,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:14:59,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:14:59,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (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 [2019-10-14 23:14:59,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:14:59,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:14:59,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:14:59,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:14:59,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:14:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-14 23:14:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:14:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:14:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:14:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:14:59,678 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:14:59,680 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:14:59,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:14:59 BoogieIcfgContainer [2019-10-14 23:14:59,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:14:59,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:14:59,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:14:59,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:14:59,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:14:59" (1/3) ... [2019-10-14 23:14:59,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251370d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:14:59, skipping insertion in model container [2019-10-14 23:14:59,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:59" (2/3) ... [2019-10-14 23:14:59,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251370d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:14:59, skipping insertion in model container [2019-10-14 23:14:59,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:14:59" (3/3) ... [2019-10-14 23:14:59,702 INFO L109 eAbstractionObserver]: Analyzing ICFG const.c [2019-10-14 23:14:59,724 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:14:59,735 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:14:59,767 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:14:59,801 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:14:59,802 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:14:59,802 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:14:59,802 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:14:59,802 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:14:59,802 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:14:59,802 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:14:59,803 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:14:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-14 23:14:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:14:59,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:14:59,831 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:59,833 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:59,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:59,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1311776583, now seen corresponding path program 1 times [2019-10-14 23:14:59,844 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:59,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039279841] [2019-10-14 23:14:59,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:59,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:59,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:00,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:00,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039279841] [2019-10-14 23:15:00,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:00,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:15:00,096 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487328388] [2019-10-14 23:15:00,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:15:00,100 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:00,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:15:00,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:15:00,113 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-10-14 23:15:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:00,137 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-10-14 23:15:00,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:15:00,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-14 23:15:00,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:00,147 INFO L225 Difference]: With dead ends: 35 [2019-10-14 23:15:00,148 INFO L226 Difference]: Without dead ends: 15 [2019-10-14 23:15:00,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:15:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-14 23:15:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-14 23:15:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-14 23:15:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-10-14 23:15:00,188 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2019-10-14 23:15:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:00,189 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-10-14 23:15:00,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:15:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-10-14 23:15:00,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:15:00,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:00,191 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:00,192 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:00,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:00,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1254518281, now seen corresponding path program 1 times [2019-10-14 23:15:00,194 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:00,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462598474] [2019-10-14 23:15:00,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:00,195 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:00,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:00,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462598474] [2019-10-14 23:15:00,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:00,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:15:00,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641947886] [2019-10-14 23:15:00,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:15:00,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:00,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:15:00,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:15:00,305 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-10-14 23:15:00,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:00,343 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-10-14 23:15:00,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:15:00,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-14 23:15:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:00,345 INFO L225 Difference]: With dead ends: 15 [2019-10-14 23:15:00,345 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:15:00,346 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:15:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:15:00,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:15:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:15:00,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:15:00,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-10-14 23:15:00,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:00,348 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:15:00,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:15:00,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:15:00,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:15:00,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:15:00,422 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-14 23:15:00,423 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:00,423 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:00,423 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:15:00,424 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:15:00,424 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:15:00,424 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 20) no Hoare annotation was computed. [2019-10-14 23:15:00,424 INFO L439 ceAbstractionStarter]: At program point L15(lines 11 18) the Hoare annotation is: (let ((.cse0 (div main_~s~0 4294967296))) (and (= main_~s~0 (* 4294967296 .cse0)) (< 0 (+ .cse0 1)))) [2019-10-14 23:15:00,425 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 20) no Hoare annotation was computed. [2019-10-14 23:15:00,425 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:15:00,427 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 20) the Hoare annotation is: true [2019-10-14 23:15:00,427 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (div main_~s~0 4294967296))) (and (= main_~s~0 (* 4294967296 .cse0)) (< 0 (+ .cse0 1)))) [2019-10-14 23:15:00,428 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-10-14 23:15:00,428 INFO L443 ceAbstractionStarter]: For program point L12-2(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:15:00,428 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:15:00,430 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:15:00,430 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:15:00,430 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:15:00,430 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:15:00,431 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:15:00,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:15:00 BoogieIcfgContainer [2019-10-14 23:15:00,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:15:00,448 INFO L168 Benchmark]: Toolchain (without parser) took 1291.47 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 103.8 MB in the beginning and 132.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,450 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.74 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 94.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,452 INFO L168 Benchmark]: Boogie Preprocessor took 104.17 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 94.4 MB in the beginning and 181.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,453 INFO L168 Benchmark]: RCFGBuilder took 218.99 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 169.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,457 INFO L168 Benchmark]: TraceAbstraction took 763.27 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 132.7 MB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:00,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 200.74 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 94.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.17 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 94.4 MB in the beginning and 181.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.99 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 169.9 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 763.27 ms. Allocated memory is still 202.4 MB. Free memory was 169.3 MB in the beginning and 132.7 MB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: s == 4294967296 * (s / 4294967296) && 0 < s / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 13 SDslu, 35 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 35 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 748 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...