/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/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:26:33,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:26:33,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:26:33,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:26:33,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:26:33,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:26:33,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:26:33,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:26:33,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:26:33,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:26:33,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:26:33,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:26:33,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:26:33,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:26:33,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:26:33,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:26:33,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:26:33,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:26:33,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:26:33,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:26:33,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:26:33,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:26:33,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:26:33,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:26:33,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:26:33,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:26:33,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:26:33,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:26:33,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:26:33,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:26:33,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:26:33,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:26:33,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:26:33,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:26:33,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:26:33,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:26:33,469 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 04:26:33,497 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:26:33,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:26:33,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:26:33,499 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:26:33,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:26:33,499 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:26:33,499 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:26:33,499 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:26:33,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:26:33,500 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:26:33,502 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:26:33,502 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:26:33,502 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:26:33,503 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:26:33,503 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:26:33,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:26:33,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:26:33,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:26:33,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:26:33,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:26:33,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:26:33,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:26:33,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:26:33,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:26:33,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:26:33,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:26:33,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:26:33,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:26:33,509 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:26:33,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:26:33,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:26:33,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:26:33,511 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:26:33,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:26:33,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:26:33,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:26:33,801 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:26:33,801 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:26:33,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2019-11-24 04:26:33,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acd83550/1a626716e8324a9492e0339f36ea81a0/FLAG55098f4e3 [2019-11-24 04:26:34,327 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:26:34,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2019-11-24 04:26:34,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acd83550/1a626716e8324a9492e0339f36ea81a0/FLAG55098f4e3 [2019-11-24 04:26:34,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acd83550/1a626716e8324a9492e0339f36ea81a0 [2019-11-24 04:26:34,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:26:34,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:26:34,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:26:34,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:26:34,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:26:34,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:26:34" (1/1) ... [2019-11-24 04:26:34,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee337c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:34, skipping insertion in model container [2019-11-24 04:26:34,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:26:34" (1/1) ... [2019-11-24 04:26:34,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:26:34,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:26:34,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:26:35,067 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:26:35,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:26:35,359 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:26:35,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35 WrapperNode [2019-11-24 04:26:35,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:26:35,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:26:35,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:26:35,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:26:35,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:26:35,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:26:35,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:26:35,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:26:35,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (1/1) ... [2019-11-24 04:26:35,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:26:35,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:26:35,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:26:35,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:26:35,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (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 04:26:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-24 04:26:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-24 04:26:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:26:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:26:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-24 04:26:35,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 04:26:35,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 04:26:38,921 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:26:38,921 INFO L284 CfgBuilder]: Removed 21 assume(true) statements. [2019-11-24 04:26:38,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:26:38 BoogieIcfgContainer [2019-11-24 04:26:38,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:26:38,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:26:38,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:26:38,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:26:38,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:26:34" (1/3) ... [2019-11-24 04:26:38,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6be635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:26:38, skipping insertion in model container [2019-11-24 04:26:38,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:26:35" (2/3) ... [2019-11-24 04:26:38,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6be635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:26:38, skipping insertion in model container [2019-11-24 04:26:38,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:26:38" (3/3) ... [2019-11-24 04:26:38,931 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2019-11-24 04:26:38,942 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:26:38,949 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:26:38,961 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:26:38,984 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:26:38,984 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:26:38,984 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:26:38,984 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:26:38,985 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:26:38,985 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:26:38,985 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:26:38,985 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:26:39,000 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-24 04:26:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-24 04:26:39,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:26:39,007 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-24 04:26:39,007 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:26:39,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:26:39,014 INFO L82 PathProgramCache]: Analyzing trace with hash 222157382, now seen corresponding path program 1 times [2019-11-24 04:26:39,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:26:39,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363849164] [2019-11-24 04:26:39,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:26:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:26:39,756 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 04:26:39,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363849164] [2019-11-24 04:26:39,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:26:39,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-24 04:26:39,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458138148] [2019-11-24 04:26:39,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-24 04:26:39,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:26:39,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-24 04:26:39,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:26:39,781 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-11-24 04:26:40,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:26:40,034 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2019-11-24 04:26:40,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:26:40,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-24 04:26:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:26:40,044 INFO L225 Difference]: With dead ends: 58 [2019-11-24 04:26:40,044 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:26:40,048 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-24 04:26:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:26:40,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:26:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:26:40,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:26:40,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-24 04:26:40,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:26:40,077 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:26:40,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-24 04:26:40,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:26:40,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:26:40,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:26:40,292 INFO L440 ceAbstractionStarter]: At program point L151(lines 109 153) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,293 INFO L444 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2019-11-24 04:26:40,293 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:26:40,293 INFO L440 ceAbstractionStarter]: At program point L127-3(lines 127 133) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,293 INFO L440 ceAbstractionStarter]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 5) (<= ULTIMATE.start_main_~i~0 5)) [2019-11-24 04:26:40,293 INFO L440 ceAbstractionStarter]: At program point L119-3(lines 119 126) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 5)) (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))))) [2019-11-24 04:26:40,294 INFO L440 ceAbstractionStarter]: At program point L144-3(lines 144 150) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 5)) (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))))) [2019-11-24 04:26:40,294 INFO L440 ceAbstractionStarter]: At program point L136-3(lines 136 142) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,294 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-24 04:26:40,294 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 5) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= ULTIMATE.start_main_~i~0 5)) [2019-11-24 04:26:40,294 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-24 04:26:40,295 INFO L440 ceAbstractionStarter]: At program point L130-3(lines 130 131) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,295 INFO L444 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2019-11-24 04:26:40,295 INFO L444 ceAbstractionStarter]: For program point L122-1(lines 122 124) no Hoare annotation was computed. [2019-11-24 04:26:40,295 INFO L440 ceAbstractionStarter]: At program point L147-3(lines 147 148) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,295 INFO L440 ceAbstractionStarter]: At program point L139-3(lines 139 140) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 5)) (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))))) [2019-11-24 04:26:40,296 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-24 04:26:40,296 INFO L440 ceAbstractionStarter]: At program point L123-3(lines 123 124) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,296 INFO L444 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2019-11-24 04:26:40,296 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:26:40,296 INFO L440 ceAbstractionStarter]: At program point L91-3(lines 91 102) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,296 INFO L440 ceAbstractionStarter]: At program point L116-3(lines 116 134) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5))) (or (and .cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (and .cse0 (<= ULTIMATE.start_main_~i~0 5)))) [2019-11-24 04:26:40,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:26:40 BoogieIcfgContainer [2019-11-24 04:26:40,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:26:40,320 INFO L168 Benchmark]: Toolchain (without parser) took 5597.39 ms. Allocated memory was 138.4 MB in the beginning and 326.1 MB in the end (delta: 187.7 MB). Free memory was 103.7 MB in the beginning and 101.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 190.2 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,321 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.43 ms. Allocated memory was 138.4 MB in the beginning and 210.2 MB in the end (delta: 71.8 MB). Free memory was 103.5 MB in the beginning and 163.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.53 ms. Allocated memory is still 210.2 MB. Free memory was 163.6 MB in the beginning and 141.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,324 INFO L168 Benchmark]: Boogie Preprocessor took 144.74 ms. Allocated memory is still 210.2 MB. Free memory was 141.1 MB in the beginning and 123.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,325 INFO L168 Benchmark]: RCFGBuilder took 3240.66 ms. Allocated memory was 210.2 MB in the beginning and 326.1 MB in the end (delta: 115.9 MB). Free memory was 123.2 MB in the beginning and 225.1 MB in the end (delta: -101.9 MB). Peak memory consumption was 153.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,326 INFO L168 Benchmark]: TraceAbstraction took 1392.85 ms. Allocated memory is still 326.1 MB. Free memory was 225.1 MB in the beginning and 101.2 MB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:26:40,331 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.43 ms. Allocated memory was 138.4 MB in the beginning and 210.2 MB in the end (delta: 71.8 MB). Free memory was 103.5 MB in the beginning and 163.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 176.53 ms. Allocated memory is still 210.2 MB. Free memory was 163.6 MB in the beginning and 141.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.74 ms. Allocated memory is still 210.2 MB. Free memory was 141.1 MB in the beginning and 123.2 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3240.66 ms. Allocated memory was 210.2 MB in the beginning and 326.1 MB in the end (delta: 115.9 MB). Free memory was 123.2 MB in the beginning and 225.1 MB in the end (delta: -101.9 MB). Peak memory consumption was 153.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1392.85 ms. Allocated memory is still 326.1 MB. Free memory was 225.1 MB in the beginning and 101.2 MB in the end (delta: 123.9 MB). Peak memory consumption was 123.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: n <= 5 && i <= 5 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (n <= 5 && i <= 5) || (n <= 5 && !(0 == cond)) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (n <= 5 && i <= 5) || (n <= 5 && !(0 == cond)) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) && i <= 5 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (n <= 5 && i <= 5) || (n <= 5 && !(0 == cond)) - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (n <= 5 && !(0 == cond)) || (n <= 5 && i <= 5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 53 SDtfs, 119 SDslu, 53 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 13 LocationsWithAnnotation, 13 PreInvPairs, 38 NumberOfFragments, 194 HoareAnnotationTreeSize, 13 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 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...