/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:17:23,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:17:23,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:17:23,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:17:23,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:17:23,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:17:23,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:17:23,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:17:23,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:17:23,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:17:23,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:17:23,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:17:23,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:17:23,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:17:23,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:17:23,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:17:23,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:17:23,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:17:23,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:17:23,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:17:23,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:17:23,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:17:23,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:17:23,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:17:23,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:17:23,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:17:23,399 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:17:23,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:17:23,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:17:23,401 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:17:23,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:17:23,401 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:17:23,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:17:23,401 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:17:23,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:17:23,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:17:23,402 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:17:23,402 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:17:23,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:17:23,403 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:17:23,403 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:17:23,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:17:23,404 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:17:23,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:17:23,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:17:23,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:17:23,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:17:23,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:17:23,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:17:23,405 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:17:23,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:17:23,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:17:23,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:17:23,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:17:23,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:17:23,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:17:23,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:17:23,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:17:23,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:17:23,407 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:17:23,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:17:23,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:17:23,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:17:23,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:17:23,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:17:23,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:17:23,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:17:23,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:17:23,704 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:17:23,705 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-11-24 04:17:23,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf4182fd/f74f3d2ca5014bbea87dd79d328f06db/FLAG501a87103 [2019-11-24 04:17:24,256 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:17:24,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2019-11-24 04:17:24,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf4182fd/f74f3d2ca5014bbea87dd79d328f06db/FLAG501a87103 [2019-11-24 04:17:24,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcf4182fd/f74f3d2ca5014bbea87dd79d328f06db [2019-11-24 04:17:24,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:17:24,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:17:24,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:24,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:17:24,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:17:24,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:24,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442b69e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24, skipping insertion in model container [2019-11-24 04:17:24,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:24,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:17:24,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:17:24,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:24,841 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:17:24,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:24,879 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:17:24,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24 WrapperNode [2019-11-24 04:17:24,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:24,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:24,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:17:24,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:17:24,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:24,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:24,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:24,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:17:24,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:17:24,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:17:25,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (1/1) ... [2019-11-24 04:17:25,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:17:25,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:17:25,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:17:25,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:17:25,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (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 [2019-11-24 04:17:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:17:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:17:25,465 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:17:25,465 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 04:17:25,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:25 BoogieIcfgContainer [2019-11-24 04:17:25,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:17:25,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:17:25,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:17:25,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:17:25,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:17:24" (1/3) ... [2019-11-24 04:17:25,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d572959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:25, skipping insertion in model container [2019-11-24 04:17:25,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:24" (2/3) ... [2019-11-24 04:17:25,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d572959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:25, skipping insertion in model container [2019-11-24 04:17:25,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:25" (3/3) ... [2019-11-24 04:17:25,477 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c [2019-11-24 04:17:25,488 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:17:25,496 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:17:25,508 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:17:25,530 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:17:25,531 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:17:25,531 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:17:25,531 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:17:25,531 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:17:25,531 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:17:25,531 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:17:25,532 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:17:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-24 04:17:25,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-24 04:17:25,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:25,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-24 04:17:25,550 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:25,555 INFO L82 PathProgramCache]: Analyzing trace with hash 30449478, now seen corresponding path program 1 times [2019-11-24 04:17:25,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:25,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185076376] [2019-11-24 04:17:25,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:25,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:17:25,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185076376] [2019-11-24 04:17:25,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:25,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:17:25,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353342038] [2019-11-24 04:17:25,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 04:17:25,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:25,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 04:17:25,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 04:17:25,691 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2019-11-24 04:17:25,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:25,708 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2019-11-24 04:17:25,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 04:17:25,710 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-24 04:17:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:25,720 INFO L225 Difference]: With dead ends: 15 [2019-11-24 04:17:25,721 INFO L226 Difference]: Without dead ends: 7 [2019-11-24 04:17:25,724 INFO L630 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 [2019-11-24 04:17:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-24 04:17:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-24 04:17:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-24 04:17:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-24 04:17:25,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-11-24 04:17:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:25,759 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-24 04:17:25,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 04:17:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-24 04:17:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 04:17:25,760 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:25,761 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 04:17:25,761 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash 921974944, now seen corresponding path program 1 times [2019-11-24 04:17:25,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:25,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798889467] [2019-11-24 04:17:25,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:17:25,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798889467] [2019-11-24 04:17:25,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:25,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:17:25,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551389538] [2019-11-24 04:17:25,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:17:25,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:25,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:17:25,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:17:25,902 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2019-11-24 04:17:25,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:25,915 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-24 04:17:25,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:17:25,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-24 04:17:25,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:25,916 INFO L225 Difference]: With dead ends: 13 [2019-11-24 04:17:25,916 INFO L226 Difference]: Without dead ends: 9 [2019-11-24 04:17:25,917 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:17:25,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-24 04:17:25,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-24 04:17:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-24 04:17:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-24 04:17:25,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-11-24 04:17:25,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:25,922 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-24 04:17:25,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:17:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-24 04:17:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 04:17:25,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:25,923 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-24 04:17:25,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:25,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:25,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1663223764, now seen corresponding path program 1 times [2019-11-24 04:17:25,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:25,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218264656] [2019-11-24 04:17:25,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:26,425 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 29 [2019-11-24 04:17:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:17:26,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218264656] [2019-11-24 04:17:26,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:26,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:17:26,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475305153] [2019-11-24 04:17:26,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:17:26,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:26,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:17:26,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:17:26,439 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-11-24 04:17:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:26,482 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-24 04:17:26,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 04:17:26,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-24 04:17:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:26,483 INFO L225 Difference]: With dead ends: 9 [2019-11-24 04:17:26,483 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:17:26,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:17:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:17:26,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:17:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:17:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:17:26,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-24 04:17:26,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:26,485 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:17:26,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:17:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:17:26,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:17:26,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:17:26,538 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:17:26,538 INFO L440 ceAbstractionStarter]: At program point L23-2(lines 16 29) the Hoare annotation is: (or (<= (* 2863311531 ULTIMATE.start_main_~x~0) (let ((.cse2 (div ULTIMATE.start_main_~x~0 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ .cse1 ULTIMATE.start_main_~x~0) 3))) (+ (* 12297829383904690176 (div (+ (* .cse0 (- 3)) .cse1 ULTIMATE.start_main_~x~0) 4294967296)) (* 8589934593 .cse0) (* 12297829383904690176 .cse2)))))) (and (<= (div ULTIMATE.start_main_~y~0 4294967296) 0) (<= 1 ULTIMATE.start_main_~y~0))) [2019-11-24 04:17:26,539 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 8) no Hoare annotation was computed. [2019-11-24 04:17:26,539 INFO L447 ceAbstractionStarter]: At program point L30(lines 30 31) the Hoare annotation is: true [2019-11-24 04:17:26,539 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:17:26,539 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-24 04:17:26,541 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 29) no Hoare annotation was computed. [2019-11-24 04:17:26,542 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 12 33) no Hoare annotation was computed. [2019-11-24 04:17:26,542 INFO L444 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-24 04:17:26,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:17:26 BoogieIcfgContainer [2019-11-24 04:17:26,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:17:26,571 INFO L168 Benchmark]: Toolchain (without parser) took 1965.41 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 103.2 MB in the beginning and 101.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 59.5 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,572 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 04:17:26,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.61 ms. Allocated memory is still 144.7 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.50 ms. Allocated memory is still 144.7 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,578 INFO L168 Benchmark]: Boogie Preprocessor took 114.55 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 181.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,579 INFO L168 Benchmark]: RCFGBuilder took 440.43 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 163.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,585 INFO L168 Benchmark]: TraceAbstraction took 1099.37 ms. Allocated memory is still 202.4 MB. Free memory was 163.7 MB in the beginning and 101.4 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:26,597 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 144.7 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.61 ms. Allocated memory is still 144.7 MB. Free memory was 102.7 MB in the beginning and 93.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 31.50 ms. Allocated memory is still 144.7 MB. Free memory was 93.1 MB in the beginning and 91.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.55 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 181.0 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.43 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 163.7 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1099.37 ms. Allocated memory is still 202.4 MB. Free memory was 163.7 MB in the beginning and 101.4 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 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 * -4294967296 + x) / 3 * -3 + x / 4294967296 * -4294967296 + x) / 4294967296) + 8589934593 * ((x / 4294967296 * -4294967296 + x) / 3) + 12297829383904690176 * (x / 4294967296) || (y / 4294967296 <= 0 && 1 <= y) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 1 SDslu, 7 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 54 HoareAnnotationTreeSize, 2 FomulaSimplifications, 62 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 1323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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...