/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.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:17:29,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:17:29,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:17:29,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-24 04:17:29,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:17:29,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:17:29,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:17:29,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:17:29,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:17:29,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:17:29,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:17:29,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:17:29,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:17:29,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:17:29,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:17:29,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:17:29,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:17:29,407 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 04:17:29,442 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:17:29,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:17:29,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:17:29,448 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:17:29,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:17:29,448 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:17:29,448 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:17:29,449 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:17:29,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:17:29,449 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:17:29,449 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:17:29,449 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:17:29,449 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:17:29,450 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:17:29,450 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:17:29,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:17:29,451 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:17:29,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:17:29,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:17:29,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:17:29,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:17:29,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:17:29,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:17:29,452 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:17:29,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:17:29,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:17:29,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:17:29,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:17:29,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:17:29,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:17:29,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:17:29,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:17:29,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:17:29,455 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:17:29,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:17:29,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:17:29,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:17:29,455 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:17:29,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:17:29,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:17:29,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:17:29,823 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:17:29,823 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:17:29,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-11-24 04:17:29,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e8eb1c/1ba57526e21b484ab0e4637fd7b0b49e/FLAGb61992d72 [2019-11-24 04:17:30,365 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:17:30,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-11-24 04:17:30,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e8eb1c/1ba57526e21b484ab0e4637fd7b0b49e/FLAGb61992d72 [2019-11-24 04:17:30,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e8eb1c/1ba57526e21b484ab0e4637fd7b0b49e [2019-11-24 04:17:30,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:17:30,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:17:30,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:30,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:17:30,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:17:30,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:30" (1/1) ... [2019-11-24 04:17:30,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6a1297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:30, skipping insertion in model container [2019-11-24 04:17:30,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:30" (1/1) ... [2019-11-24 04:17:30,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:17:30,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:17:30,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:30,994 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:17:31,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:31,051 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:17:31,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31 WrapperNode [2019-11-24 04:17:31,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:31,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:31,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:17:31,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:17:31,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:31,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:17:31,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:17:31,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:17:31,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (1/1) ... [2019-11-24 04:17:31,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:17:31,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:17:31,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:17:31,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:17:31,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (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 04:17:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:17:31,644 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:17:31,644 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-24 04:17:31,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:31 BoogieIcfgContainer [2019-11-24 04:17:31,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:17:31,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:17:31,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:17:31,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:17:31,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:17:30" (1/3) ... [2019-11-24 04:17:31,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de0aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:31, skipping insertion in model container [2019-11-24 04:17:31,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:31" (2/3) ... [2019-11-24 04:17:31,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de0aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:31, skipping insertion in model container [2019-11-24 04:17:31,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:31" (3/3) ... [2019-11-24 04:17:31,655 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2019-11-24 04:17:31,665 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:17:31,686 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:17:31,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:17:31,716 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:17:31,717 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:17:31,717 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:17:31,717 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:17:31,717 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:17:31,717 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:17:31,717 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:17:31,718 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:17:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-24 04:17:31,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-24 04:17:31,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:31,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-24 04:17:31,736 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:31,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:31,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2065765632, now seen corresponding path program 1 times [2019-11-24 04:17:31,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:31,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695177288] [2019-11-24 04:17:31,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:31,993 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 04:17:31,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695177288] [2019-11-24 04:17:31,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:31,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 04:17:31,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703419679] [2019-11-24 04:17:32,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 04:17:32,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:32,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 04:17:32,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 04:17:32,014 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-24 04:17:32,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:32,045 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-11-24 04:17:32,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 04:17:32,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-24 04:17:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:32,057 INFO L225 Difference]: With dead ends: 19 [2019-11-24 04:17:32,057 INFO L226 Difference]: Without dead ends: 9 [2019-11-24 04:17:32,060 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 04:17:32,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-24 04:17:32,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-24 04:17:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-24 04:17:32,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-24 04:17:32,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-11-24 04:17:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:32,093 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-24 04:17:32,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 04:17:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-24 04:17:32,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-24 04:17:32,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:32,094 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-24 04:17:32,095 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:32,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:32,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1562005972, now seen corresponding path program 1 times [2019-11-24 04:17:32,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:32,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842538569] [2019-11-24 04:17:32,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:32,702 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 04:17:32,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842538569] [2019-11-24 04:17:32,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:32,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:17:32,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758261081] [2019-11-24 04:17:32,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:17:32,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:32,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:17:32,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:17:32,707 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-11-24 04:17:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:32,748 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-24 04:17:32,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 04:17:32,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-24 04:17:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:32,749 INFO L225 Difference]: With dead ends: 9 [2019-11-24 04:17:32,749 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:17:32,750 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 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 04:17:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:17:32,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:17:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:17:32,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:17:32,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-24 04:17:32,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:32,752 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:17:32,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:17:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:17:32,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:17:32,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:17:32,787 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:17:32,787 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2019-11-24 04:17:32,787 INFO L447 ceAbstractionStarter]: At program point L73(lines 7 76) the Hoare annotation is: true [2019-11-24 04:17:32,787 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:17:32,788 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-24 04:17:32,788 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-24 04:17:32,788 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2019-11-24 04:17:32,788 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2019-11-24 04:17:32,789 INFO L440 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start_main_~main__y~0) (<= (div ULTIMATE.start_main_~main__y~0 4294967296) 0)) (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 3 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 4294967296 .cse0))))) [2019-11-24 04:17:32,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:17:32 BoogieIcfgContainer [2019-11-24 04:17:32,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:17:32,807 INFO L168 Benchmark]: Toolchain (without parser) took 2108.69 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 103.8 MB in the beginning and 101.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,808 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.62 ms. Allocated memory is still 145.8 MB. Free memory was 103.4 MB in the beginning and 93.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.85 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 93.7 MB in the beginning and 184.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,811 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 205.0 MB. Free memory was 184.1 MB in the beginning and 183.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,812 INFO L168 Benchmark]: RCFGBuilder took 398.40 ms. Allocated memory is still 205.0 MB. Free memory was 183.0 MB in the beginning and 165.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,812 INFO L168 Benchmark]: TraceAbstraction took 1156.60 ms. Allocated memory is still 205.0 MB. Free memory was 165.1 MB in the beginning and 101.9 MB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:32,817 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 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 354.62 ms. Allocated memory is still 145.8 MB. Free memory was 103.4 MB in the beginning and 93.7 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 164.85 ms. Allocated memory was 145.8 MB in the beginning and 205.0 MB in the end (delta: 59.2 MB). Free memory was 93.7 MB in the beginning and 184.1 MB in the end (delta: -90.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 205.0 MB. Free memory was 184.1 MB in the beginning and 183.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.40 ms. Allocated memory is still 205.0 MB. Free memory was 183.0 MB in the beginning and 165.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1156.60 ms. Allocated memory is still 205.0 MB. Free memory was 165.1 MB in the beginning and 101.9 MB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: (1 <= main__y && main__y / 4294967296 <= 0) || main__x <= 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296) - InvariantResult [Line: 7]: 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: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 3 SDslu, 8 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 2 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 30 HoareAnnotationTreeSize, 2 FomulaSimplifications, 38 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 803 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...