java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-tiling/nr3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:42:09,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:42:09,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:42:09,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:42:09,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:42:09,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:42:09,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:42:09,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:42:09,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:42:09,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:42:09,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:42:09,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:42:09,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:42:09,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:42:09,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:42:09,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:42:09,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:42:09,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:42:09,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:42:09,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:42:09,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:42:09,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:42:09,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:42:09,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:42:09,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:42:09,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:42:09,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:42:09,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:42:09,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 00:42:09,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:42:09,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:42:09,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:42:09,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:42:09,705 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:42:09,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:42:09,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:42:09,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:42:09,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:42:09,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:42:09,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:42:09,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:42:09,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:42:09,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:42:09,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:42:09,709 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:42:09,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:42:09,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:42:09,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:42:09,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:42:09,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:42:09,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:42:09,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:42:09,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:42:09,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:42:09,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:42:09,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:42:09,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:42:09,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 00:42:09,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:42:09,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:42:10,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:42:10,004 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:42:10,005 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:42:10,005 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr3.c [2019-10-07 00:42:10,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9183d45/88e7c89c525b42b68b6b7d85b236f4fd/FLAG353cc0952 [2019-10-07 00:42:10,622 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:42:10,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr3.c [2019-10-07 00:42:10,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9183d45/88e7c89c525b42b68b6b7d85b236f4fd/FLAG353cc0952 [2019-10-07 00:42:10,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a9183d45/88e7c89c525b42b68b6b7d85b236f4fd [2019-10-07 00:42:10,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:42:10,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:42:10,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:42:10,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:42:10,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:42:10,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:42:10" (1/1) ... [2019-10-07 00:42:10,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f916025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:10, skipping insertion in model container [2019-10-07 00:42:10,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:42:10" (1/1) ... [2019-10-07 00:42:10,990 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:42:11,009 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:42:11,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:42:11,220 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:42:11,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:42:11,349 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:42:11,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11 WrapperNode [2019-10-07 00:42:11,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:42:11,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:42:11,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:42:11,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:42:11,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... [2019-10-07 00:42:11,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:42:11,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:42:11,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:42:11,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:42:11,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:42:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:42:11,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:42:11,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 00:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:42:11,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:42:11,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:42:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:42:11,870 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:42:11,870 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-07 00:42:11,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:42:11 BoogieIcfgContainer [2019-10-07 00:42:11,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:42:11,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:42:11,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:42:11,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:42:11,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:42:10" (1/3) ... [2019-10-07 00:42:11,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5bd00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:42:11, skipping insertion in model container [2019-10-07 00:42:11,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:42:11" (2/3) ... [2019-10-07 00:42:11,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5bd00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:42:11, skipping insertion in model container [2019-10-07 00:42:11,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:42:11" (3/3) ... [2019-10-07 00:42:11,880 INFO L109 eAbstractionObserver]: Analyzing ICFG nr3.c [2019-10-07 00:42:11,891 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:42:11,901 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:42:11,913 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:42:11,942 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:42:11,943 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:42:11,943 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:42:11,943 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:42:11,943 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:42:11,943 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:42:11,943 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:42:11,944 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:42:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-07 00:42:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 00:42:11,970 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:11,971 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:11,973 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:11,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1583936272, now seen corresponding path program 1 times [2019-10-07 00:42:11,987 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:11,987 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:11,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:11,988 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:12,355 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:12,356 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:42:12,356 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:42:12,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:42:12,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:42:12,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:42:12,380 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2019-10-07 00:42:12,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:12,509 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-10-07 00:42:12,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:42:12,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-07 00:42:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:12,522 INFO L225 Difference]: With dead ends: 44 [2019-10-07 00:42:12,522 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:42:12,531 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:42:12,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:42:12,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-07 00:42:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-07 00:42:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-07 00:42:12,584 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2019-10-07 00:42:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:12,585 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-07 00:42:12,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:42:12,587 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-07 00:42:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-07 00:42:12,588 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:12,588 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:12,588 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:12,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:12,589 INFO L82 PathProgramCache]: Analyzing trace with hash 362962816, now seen corresponding path program 1 times [2019-10-07 00:42:12,589 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:12,589 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:12,590 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:12,590 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:12,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:12,646 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:12,646 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:42:12,647 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:42:12,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:42:12,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:42:12,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:42:12,649 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2019-10-07 00:42:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:12,662 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-07 00:42:12,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:42:12,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-07 00:42:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:12,664 INFO L225 Difference]: With dead ends: 31 [2019-10-07 00:42:12,665 INFO L226 Difference]: Without dead ends: 20 [2019-10-07 00:42:12,666 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:42:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-07 00:42:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-07 00:42:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-07 00:42:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-10-07 00:42:12,672 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2019-10-07 00:42:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:12,672 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-10-07 00:42:12,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:42:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-10-07 00:42:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-07 00:42:12,674 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:42:12,674 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:42:12,674 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:42:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:42:12,675 INFO L82 PathProgramCache]: Analyzing trace with hash -561578652, now seen corresponding path program 1 times [2019-10-07 00:42:12,675 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:42:12,675 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:12,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:12,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:42:12,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:42:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:12,753 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:42:12,753 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:42:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:42:12,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 00:42:12,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:42:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:12,876 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:42:12,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:42:12,911 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:42:12,935 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-07 00:42:12,936 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:42:12,942 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:42:12,951 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:42:12,951 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:42:13,152 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-07 00:42:13,752 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-07 00:42:14,486 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 17 for LOIs [2019-10-07 00:42:14,535 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 13 for LOIs [2019-10-07 00:42:14,545 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:42:14,545 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:42:14,546 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 38#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-07 00:42:14,547 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 257#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:14,548 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 266#(and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:14,548 INFO L193 IcfgInterpreter]: Reachable states at location L37-3 satisfy 223#(and (<= 0 main_~i~0) (<= main_~i~0 0) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= main_~i~0 0)) (<= main_~MINVAL~0 2)) [2019-10-07 00:42:14,548 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 262#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:14,549 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 252#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= __VERIFIER_assert_~cond 0) (<= |#NULL.base| 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 |#NULL.base|) (<= 0 __VERIFIER_assert_~cond) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (<= |#NULL.base| 0) (<= 1 __VERIFIER_assert_~cond) (<= 0 |#NULL.base|) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:14,549 INFO L193 IcfgInterpreter]: Reachable states at location L39-2 satisfy 232#(and (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 0 main_~i~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= 0 |main_~#volArray~0.offset|) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= main_~i~0 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2)) [2019-10-07 00:42:14,550 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= ~CELLCOUNT~0 0) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:14,550 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 ~CELLCOUNT~0) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (<= ~CELLCOUNT~0 0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0) (= |old(#length)| |#length|)) [2019-10-07 00:42:14,550 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 271#(and (= ~CELLCOUNT~0 0) (= |#valid| (store |old(#valid)| 0 0)) (<= ~CELLCOUNT~0 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 ~CELLCOUNT~0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:42:14,551 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:42:14,551 INFO L193 IcfgInterpreter]: Reachable states at location L18 satisfy 43#(and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) [2019-10-07 00:42:14,551 INFO L193 IcfgInterpreter]: Reachable states at location L22-3 satisfy 206#(and (or (<= main_~j~0 1) (and (<= 1 main_~i~0) (<= main_~i~0 1))) (or (and (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~i~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (not (<= 1 main_~j~0)) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= main_~MINVAL~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0)))) [2019-10-07 00:42:14,552 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 247#(and (or (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0)) (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 1) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= |__VERIFIER_assert_#in~cond| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-10-07 00:42:14,552 INFO L193 IcfgInterpreter]: Reachable states at location L24-3 satisfy 201#(or (and (= main_~j~0 3) (<= |main_~#volArray~0.offset| 0) (= 0 |#NULL.base|) (not (= 0 (ite (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) 1 0))) (<= 0 |main_~#volArray~0.offset|) (= 0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (mod ~CELLCOUNT~0 3) (- 3)) (mod ~CELLCOUNT~0 3))) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= 0 |#NULL.offset|) (<= 0 |old(~CELLCOUNT~0)|) (= 2 main_~MINVAL~0) (not (= |main_~#volArray~0.base| 0)) (<= 1 main_~i~0) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (<= main_~MINVAL~0 2) (<= main_~i~0 1) (<= main_~i~0 (ite (and (not (= (mod ~CELLCOUNT~0 3) 0)) (< ~CELLCOUNT~0 0)) (+ (div ~CELLCOUNT~0 3) 1) (div ~CELLCOUNT~0 3))) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (<= |#NULL.base| 0) (<= main_~j~0 3) (= main_~i~0 1) (<= |old(~CELLCOUNT~0)| 0) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (= |#memory_int| |old(#memory_int)|) (<= 3 main_~j~0) (= |#NULL.offset| 0) (<= 0 (+ ~CELLCOUNT~0 2147483648)) (= |old(~CELLCOUNT~0)| 0)) (and (= |#NULL.base| 0) (<= |main_~#volArray~0.offset| 0) (<= 1 ~CELLCOUNT~0) (<= 2 main_~MINVAL~0) (= main_~MINVAL~0 2) (<= |#NULL.base| 0) (<= main_~j~0 3) (<= 0 |main_~#volArray~0.offset|) (= |main_~#volArray~0.offset| 0) (<= 0 |#NULL.base|) (<= |old(~CELLCOUNT~0)| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~CELLCOUNT~0)|) (<= ~CELLCOUNT~0 2147483647) (<= 1 main_~i~0) (<= main_~MINVAL~0 2) (= |#NULL.offset| 0) (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:42:15,000 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-10-07 00:42:15,328 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2019-10-07 00:42:15,674 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2019-10-07 00:42:15,677 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:42:15,678 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 12] total 16 [2019-10-07 00:42:15,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 00:42:15,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 00:42:15,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-07 00:42:15,685 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 16 states. [2019-10-07 00:42:16,065 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-10-07 00:42:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:42:16,167 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-10-07 00:42:16,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 00:42:16,168 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 16 [2019-10-07 00:42:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:42:16,168 INFO L225 Difference]: With dead ends: 22 [2019-10-07 00:42:16,168 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 00:42:16,169 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2019-10-07 00:42:16,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 00:42:16,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 00:42:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 00:42:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 00:42:16,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-07 00:42:16,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:42:16,171 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 00:42:16,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 00:42:16,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 00:42:16,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 00:42:16,376 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:42:16,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 00:42:16,578 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-10-07 00:42:16,630 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:42:16,630 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:42:16,630 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:42:16,631 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~CELLCOUNT~0 0) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= 0 ~CELLCOUNT~0) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-07 00:42:16,631 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:42:16,631 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 00:42:16,631 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 43) no Hoare annotation was computed. [2019-10-07 00:42:16,631 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 41) no Hoare annotation was computed. [2019-10-07 00:42:16,631 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 41) no Hoare annotation was computed. [2019-10-07 00:42:16,632 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 34) the Hoare annotation is: (or (and (<= 2 main_~j~0) (<= 2 ~CELLCOUNT~0)) (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= |#NULL.base| 0)) (not (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:42:16,632 INFO L439 ceAbstractionStarter]: At program point L37-3(lines 37 40) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= |#NULL.base| 0)) (not (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:42:16,632 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 43) no Hoare annotation was computed. [2019-10-07 00:42:16,632 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 43) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= |#NULL.base| 0)) (not (= |old(~CELLCOUNT~0)| 0)) (and (= |old(~CELLCOUNT~0)| ~CELLCOUNT~0) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))) [2019-10-07 00:42:16,633 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 35) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= |#NULL.base| 0)) (and (= main_~i~0 1) (< |main_~#volArray~0.base| |#StackHeapBarrier|) (< 1 ~CELLCOUNT~0) (<= ~CELLCOUNT~0 2147483647) (not (= |main_~#volArray~0.base| 0)) (<= main_~MINVAL~0 2) (= |#valid| (store |old(#valid)| |main_~#volArray~0.base| 1)) (= 0 (select |old(#valid)| |main_~#volArray~0.base|)) (and (<= 2 main_~MINVAL~0) (= 0 (let ((.cse0 (mod ~CELLCOUNT~0 3))) (ite (and (not (= .cse0 0)) (< ~CELLCOUNT~0 0)) (+ .cse0 (- 3)) .cse0))) (= |main_~#volArray~0.offset| 0)) (= |#memory_int| |old(#memory_int)|) (= (store |old(#length)| |main_~#volArray~0.base| (* 4 ~CELLCOUNT~0)) |#length|)) (not (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:42:16,633 INFO L443 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-10-07 00:42:16,633 INFO L439 ceAbstractionStarter]: At program point L39-2(line 39) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= |#NULL.base| 0)) (not (= |old(~CELLCOUNT~0)| 0))) [2019-10-07 00:42:16,633 INFO L443 ceAbstractionStarter]: For program point L39-3(line 39) no Hoare annotation was computed. [2019-10-07 00:42:16,633 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-07 00:42:16,634 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-07 00:42:16,634 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-07 00:42:16,634 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-07 00:42:16,634 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-07 00:42:16,634 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-07 00:42:16,643 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,644 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,645 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-10-07 00:42:16,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-10-07 00:42:16,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,662 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,663 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:42:16 BoogieIcfgContainer [2019-10-07 00:42:16,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 00:42:16,676 INFO L168 Benchmark]: Toolchain (without parser) took 5704.19 ms. Allocated memory was 137.9 MB in the beginning and 281.5 MB in the end (delta: 143.7 MB). Free memory was 102.5 MB in the beginning and 134.8 MB in the end (delta: -32.3 MB). Peak memory consumption was 111.4 MB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,677 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.58 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 181.2 MB in the end (delta: -78.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,679 INFO L168 Benchmark]: Boogie Preprocessor took 50.86 ms. Allocated memory is still 201.9 MB. Free memory was 181.2 MB in the beginning and 179.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,682 INFO L168 Benchmark]: RCFGBuilder took 469.78 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 156.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,684 INFO L168 Benchmark]: TraceAbstraction took 4800.88 ms. Allocated memory was 201.9 MB in the beginning and 281.5 MB in the end (delta: 79.7 MB). Free memory was 155.8 MB in the beginning and 134.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 100.8 MB. Max. memory is 7.1 GB. [2019-10-07 00:42:16,695 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.58 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 181.2 MB in the end (delta: -78.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.86 ms. Allocated memory is still 201.9 MB. Free memory was 181.2 MB in the beginning and 179.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 469.78 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 156.5 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4800.88 ms. Allocated memory was 201.9 MB in the beginning and 281.5 MB in the end (delta: 79.7 MB). Free memory was 155.8 MB in the beginning and 134.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 100.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 37]: Loop Invariant [2019-10-07 00:42:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((!(#NULL == 0) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(#NULL <= 0)) || !(\old(CELLCOUNT) == 0) - InvariantResult [Line: 22]: Loop Invariant [2019-10-07 00:42:16,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,719 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-10-07 00:42:16,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2019-10-07 00:42:16,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-07 00:42:16,724 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-07 00:42:16,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((!(#NULL == 0) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(#NULL <= 0)) || ((((((((((i == 1 && volArray < unknown-#StackHeapBarrier-unknown) && 1 < CELLCOUNT) && CELLCOUNT <= 2147483647) && !(volArray == 0)) && MINVAL <= 2) && \valid == \old(\valid)[volArray := 1]) && 0 == \old(\valid)[volArray]) && (2 <= MINVAL && 0 == (if !(CELLCOUNT % 3 == 0) && CELLCOUNT < 0 then CELLCOUNT % 3 + -3 else CELLCOUNT % 3)) && volArray == 0) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && \old(unknown-#length-unknown)[volArray := 4 * CELLCOUNT] == unknown-#length-unknown)) || !(\old(CELLCOUNT) == 0) - InvariantResult [Line: 24]: Loop Invariant [2019-10-07 00:42:16,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,727 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:42:16,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((((2 <= j && 2 <= CELLCOUNT) || !(#NULL == 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(#NULL <= 0)) || !(\old(CELLCOUNT) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 46 SDtfs, 25 SDslu, 43 SDs, 0 SdLazy, 111 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 14 NumberOfFragments, 244 HoareAnnotationTreeSize, 11 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 138 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 1403 SizeOfPredicates, 1 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 1617, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 46, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 375, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 26, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 3, TOOLS_QUANTIFIERELIM_APPLICATIONS: 33, TOOLS_QUANTIFIERELIM_TIME[ms]: 377, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 123, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 50, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 37, DOMAIN_JOIN_TIME[ms]: 963, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 20, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 92, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 11, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME[ms]: 22, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 794, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 793, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 71, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 71, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 15, DAG_COMPRESSION_PROCESSED_NODES: 113, DAG_COMPRESSION_RETAINED_NODES: 57, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...