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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:30:37,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:30:37,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:30:37,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:30:37,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:30:37,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:30:37,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:30:37,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:30:37,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:30:37,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:30:37,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:30:37,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:30:37,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:30:37,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:30:37,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:30:37,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:30:37,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:30:37,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:30:37,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:30:37,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:30:37,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:30:37,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:30:37,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:30:37,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:30:37,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:30:37,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:30:37,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:30:37,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:30:37,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:30:37,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:30:37,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:30:37,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:30:37,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:30:37,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:30:37,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:30:37,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:30:37,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:30:37,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:30:37,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:30:37,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:30:37,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:30:37,970 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 [2019-10-07 13:30:37,992 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:30:37,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:30:37,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:30:37,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:30:37,993 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:30:37,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:30:37,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:30:37,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:30:37,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:30:37,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:30:37,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:30:37,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:30:37,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:30:37,996 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:30:37,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:30:37,997 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:30:37,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:30:37,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:30:37,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:30:37,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:30:37,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:30:37,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:30:37,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:30:37,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:30:37,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:30:38,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:30:38,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:30:38,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:30:38,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:30:38,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:30:38,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:30:38,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:30:38,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:30:38,287 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:30:38,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-10-07 13:30:38,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc709c0/81520e77d30f4948806e737f087aef09/FLAGc59e8b215 [2019-10-07 13:30:38,815 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:30:38,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_3-2.c [2019-10-07 13:30:38,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc709c0/81520e77d30f4948806e737f087aef09/FLAGc59e8b215 [2019-10-07 13:30:39,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc709c0/81520e77d30f4948806e737f087aef09 [2019-10-07 13:30:39,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:30:39,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:30:39,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:30:39,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:30:39,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:30:39,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faf21cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39, skipping insertion in model container [2019-10-07 13:30:39,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,221 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:30:39,237 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:30:39,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:30:39,416 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:30:39,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:30:39,443 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:30:39,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39 WrapperNode [2019-10-07 13:30:39,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:30:39,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:30:39,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:30:39,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:30:39,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (1/1) ... [2019-10-07 13:30:39,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:30:39,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:30:39,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:30:39,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:30:39,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (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 [2019-10-07 13:30:39,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:30:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:30:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:30:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:30:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:30:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-07 13:30:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:30:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:30:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:30:39,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:30:39,753 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:30:39,754 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:30:39,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:30:39 BoogieIcfgContainer [2019-10-07 13:30:39,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:30:39,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:30:39,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:30:39,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:30:39,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:30:39" (1/3) ... [2019-10-07 13:30:39,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c70ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:30:39, skipping insertion in model container [2019-10-07 13:30:39,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:30:39" (2/3) ... [2019-10-07 13:30:39,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c70ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:30:39, skipping insertion in model container [2019-10-07 13:30:39,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:30:39" (3/3) ... [2019-10-07 13:30:39,763 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_3-2.c [2019-10-07 13:30:39,775 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:30:39,782 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:30:39,794 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:30:39,817 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:30:39,817 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:30:39,817 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:30:39,817 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:30:39,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:30:39,818 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:30:39,818 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:30:39,818 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:30:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-07 13:30:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:30:39,842 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:30:39,843 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:30:39,844 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:30:39,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:30:39,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1869232855, now seen corresponding path program 1 times [2019-10-07 13:30:39,856 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:30:39,856 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:30:39,856 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:30:39,856 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:30:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:30:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:30:40,243 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 15 [2019-10-07 13:30:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:30:40,285 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:30:40,285 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:30:40,286 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:30:40,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:30:40,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:30:40,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:30:40,306 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-10-07 13:30:40,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:30:40,378 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-10-07 13:30:40,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:30:40,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-07 13:30:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:30:40,387 INFO L225 Difference]: With dead ends: 23 [2019-10-07 13:30:40,387 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:30:40,391 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:30:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:30:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:30:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:30:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:30:40,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-07 13:30:40,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:30:40,416 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:30:40,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:30:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:30:40,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:30:40,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:30:40,461 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:30:40,461 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:30:40,461 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:30:40,462 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:30:40,462 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:30:40,462 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:30:40,462 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 20) the Hoare annotation is: true [2019-10-07 13:30:40,463 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 20) no Hoare annotation was computed. [2019-10-07 13:30:40,463 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 17) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* (- 2) .cse0)) 4294967296))))) (<= 0 main_~x~0)) [2019-10-07 13:30:40,463 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 20) no Hoare annotation was computed. [2019-10-07 13:30:40,464 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 17) the Hoare annotation is: (and (<= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* (- 2) .cse0)) 4294967296))))) (<= 0 main_~x~0)) [2019-10-07 13:30:40,464 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-07 13:30:40,464 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2019-10-07 13:30:40,464 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2019-10-07 13:30:40,465 INFO L443 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-10-07 13:30:40,465 INFO L443 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-10-07 13:30:40,465 INFO L443 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2019-10-07 13:30:40,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:30:40 BoogieIcfgContainer [2019-10-07 13:30:40,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:30:40,492 INFO L168 Benchmark]: Toolchain (without parser) took 1283.94 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 102.4 MB in the beginning and 133.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,493 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.78 ms. Allocated memory is still 138.4 MB. Free memory was 102.2 MB in the beginning and 93.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,498 INFO L168 Benchmark]: Boogie Preprocessor took 100.92 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 93.0 MB in the beginning and 179.8 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,499 INFO L168 Benchmark]: RCFGBuilder took 209.98 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 169.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,499 INFO L168 Benchmark]: TraceAbstraction took 732.05 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 133.4 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:30:40,504 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.78 ms. Allocated memory is still 138.4 MB. Free memory was 102.2 MB in the beginning and 93.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.92 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 93.0 MB in the beginning and 179.8 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 209.98 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 169.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 732.05 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 133.4 MB in the end (delta: 35.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2 * (x / 2) + 4294967296 * ((x + -2 * (x / 2)) / 4294967296) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 25 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 51 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...