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/rewnifrev.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:52:54,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:52:54,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:52:54,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:52:54,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:52:54,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:52:54,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:52:54,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:52:54,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:52:54,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:52:54,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:52:54,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:52:54,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:52:54,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:52:54,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:52:54,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:52:54,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:52:54,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:52:54,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:52:54,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:52:54,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:52:54,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:52:54,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:52:54,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:52:54,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:52:54,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:52:54,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:52:54,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:52:54,052 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 00:52:54,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:52:54,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:52:54,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:52:54,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:52:54,076 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:52:54,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:52:54,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:52:54,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:52:54,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:52:54,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:52:54,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:52:54,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:52:54,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:52:54,079 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:52:54,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:52:54,079 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:52:54,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:52:54,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:52:54,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:52:54,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:52:54,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:52:54,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:52:54,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:52:54,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:52:54,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:52:54,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:52:54,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:52:54,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:52:54,082 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 00:52:54,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:52:54,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:52:54,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:52:54,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:52:54,444 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:52:54,445 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewnifrev.c [2019-10-07 00:52:54,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aaa3d9d9/7dac3c8ebd604f0a9906d9c5b490ba33/FLAG12a1efafc [2019-10-07 00:52:54,948 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:52:54,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/rewnifrev.c [2019-10-07 00:52:54,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aaa3d9d9/7dac3c8ebd604f0a9906d9c5b490ba33/FLAG12a1efafc [2019-10-07 00:52:55,314 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aaa3d9d9/7dac3c8ebd604f0a9906d9c5b490ba33 [2019-10-07 00:52:55,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:52:55,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:52:55,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:52:55,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:52:55,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:52:55,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66746e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55, skipping insertion in model container [2019-10-07 00:52:55,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,342 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:52:55,360 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:52:55,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:52:55,600 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:52:55,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:52:55,640 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:52:55,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55 WrapperNode [2019-10-07 00:52:55,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:52:55,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:52:55,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:52:55,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:52:55,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (1/1) ... [2019-10-07 00:52:55,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:52:55,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:52:55,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:52:55,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:52:55,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (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 00:52:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:52:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:52:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:52:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:52:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:52:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 00:52:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:52:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:52:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:52:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:52:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:52:56,185 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:52:56,186 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 00:52:56,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:52:56 BoogieIcfgContainer [2019-10-07 00:52:56,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:52:56,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:52:56,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:52:56,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:52:56,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:52:55" (1/3) ... [2019-10-07 00:52:56,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65754e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:52:56, skipping insertion in model container [2019-10-07 00:52:56,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:52:55" (2/3) ... [2019-10-07 00:52:56,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a65754e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:52:56, skipping insertion in model container [2019-10-07 00:52:56,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:52:56" (3/3) ... [2019-10-07 00:52:56,195 INFO L109 eAbstractionObserver]: Analyzing ICFG rewnifrev.c [2019-10-07 00:52:56,205 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:52:56,211 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:52:56,222 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:52:56,247 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:52:56,248 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:52:56,248 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:52:56,248 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:52:56,248 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:52:56,248 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:52:56,248 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:52:56,249 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:52:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-07 00:52:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 00:52:56,272 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:52:56,272 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:52:56,274 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:52:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:52:56,278 INFO L82 PathProgramCache]: Analyzing trace with hash 698834392, now seen corresponding path program 1 times [2019-10-07 00:52:56,285 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:52:56,285 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:52:56,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:52:56,286 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:52:56,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:52:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:52:56,464 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 00:52:56,464 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:52:56,465 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:52:56,465 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:52:56,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:52:56,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:52:56,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:52:56,486 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-10-07 00:52:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:52:56,533 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2019-10-07 00:52:56,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:52:56,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-07 00:52:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:52:56,543 INFO L225 Difference]: With dead ends: 34 [2019-10-07 00:52:56,543 INFO L226 Difference]: Without dead ends: 17 [2019-10-07 00:52:56,546 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 00:52:56,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-07 00:52:56,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-07 00:52:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-07 00:52:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-07 00:52:56,582 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2019-10-07 00:52:56,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:52:56,583 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-07 00:52:56,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:52:56,584 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-07 00:52:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-07 00:52:56,584 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:52:56,585 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:52:56,585 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:52:56,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:52:56,586 INFO L82 PathProgramCache]: Analyzing trace with hash -494855414, now seen corresponding path program 1 times [2019-10-07 00:52:56,586 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:52:56,586 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:52:56,587 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:52:56,587 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:52:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:52:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:52:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:52:56,671 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:52:56,672 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:52:56,672 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 00:52:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:52:56,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 00:52:56,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:52:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:52:56,806 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:52:56,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:52:56,834 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:52:56,861 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-07 00:52:56,861 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:52:56,869 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:52:56,877 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:52:56,878 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:52:57,128 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2019-10-07 00:52:57,609 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 35 for LOIs [2019-10-07 00:52:57,625 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 16 for LOIs [2019-10-07 00:52:57,635 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:52:57,635 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:52:57,636 INFO L193 IcfgInterpreter]: Reachable states at location L3-1 satisfy 90#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:52:57,636 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 99#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~SIZE~0)| ~SIZE~0)) [2019-10-07 00:52:57,636 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= ~SIZE~0 2147483647) (<= |old(~SIZE~0)| 0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,637 INFO L193 IcfgInterpreter]: Reachable states at location L28-3 satisfy 70#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,637 INFO L193 IcfgInterpreter]: Reachable states at location L3 satisfy 85#(and (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:52:57,637 INFO L193 IcfgInterpreter]: Reachable states at location L19-3 satisfy 65#(and (or (and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (= |#NULL.offset| 0)) (and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (<= |main_#t~malloc2.offset| 0) (<= 0 main_~i~0) (= 0 |#NULL.base|) (< ~SIZE~0 ~MAX~0) (< 1 ~SIZE~0) (= 0 |main_#t~malloc2.offset|) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= |#valid| (store |old(#valid)| |main_#t~malloc2.base| 1)) (= main_~a~0.offset |main_#t~malloc2.offset|) (<= ~SIZE~0 2147483647) (< |#StackHeapBarrier| |main_#t~malloc2.base|) (= (store |old(#length)| |main_#t~malloc2.base| (* 4 ~SIZE~0)) |#length|) (<= ~SIZE~0 100000) (not (= |main_#t~malloc2.base| 0)) (<= |#NULL.base| 0) (<= 0 (+ ~SIZE~0 2147483648)) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (<= 0 main_~a~0.offset) (= 0 (select |old(#valid)| 0)) (= main_~i~0 (+ ~SIZE~0 (- 1))) (= (select |old(#valid)| |main_#t~malloc2.base|) 0) (= |main_#t~malloc2.base| main_~a~0.base) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0))) (<= main_~i~0 99999) (<= 0 |main_#t~malloc2.offset|) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= |old(~SIZE~0)| 0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,638 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= 0 (select |#valid| 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,638 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (<= ~MAX~0 100000) (= |old(~SIZE~0)| 0) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 |old(~SIZE~0)|) (= |#valid| |old(#valid)|) (<= |old(~SIZE~0)| 0) (<= 0 ~SIZE~0) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (<= ~SIZE~0 0) (= |old(~SIZE~0)| ~SIZE~0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,638 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 104#(and (<= ~MAX~0 100000) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= ~SIZE~0 0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |#valid| (store |old(#valid)| 0 0)) (<= 0 ~SIZE~0) (= |#NULL.offset| 0) (<= ~SIZE~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,639 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:52:57,639 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 80#(exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) [2019-10-07 00:52:57,639 INFO L193 IcfgInterpreter]: Reachable states at location L30 satisfy 75#(and (= |old(~SIZE~0)| 0) (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= |main_#t~malloc2.offset| 0) (<= ~SIZE~0 100000) (<= 0 main_~i~0) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= main_~a~0.offset 0) (< main_~i~0 ~SIZE~0) (<= 0 main_~a~0.offset) (<= 0 |#NULL.base|) (= |main_#t~malloc2.offset| 0) (= ~MAX~0 100000) (<= 0 |main_#t~malloc2.offset|) (<= main_~i~0 0) (<= 0 |old(~SIZE~0)|) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (= |main_#t~mem5| (select (select |#memory_int| main_~a~0.base) (+ (* 4 main_~i~0) main_~a~0.offset))) (<= |old(~SIZE~0)| 0) (= |#NULL.offset| 0) (= main_~i~0 0) (<= 100000 ~MAX~0)) [2019-10-07 00:52:57,640 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 95#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (exists ((v_main_~a~0.base_BEFORE_CALL_1 Int) (v_main_~a~0.offset_BEFORE_CALL_1 Int)) (or (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 1) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1)) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)) (and (= |#NULL.base| 0) (<= ~MAX~0 100000) (<= v_main_~a~0.offset_BEFORE_CALL_1 0) (<= ~SIZE~0 100000) (= |__VERIFIER_assert_#in~cond| 0) (<= 0 v_main_~a~0.offset_BEFORE_CALL_1) (<= |#NULL.base| 0) (<= 1 ~SIZE~0) (not (<= 0 (select (select |#memory_int| v_main_~a~0.base_BEFORE_CALL_1) v_main_~a~0.offset_BEFORE_CALL_1))) (<= 0 |#NULL.base|) (= ~MAX~0 100000) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (< 0 ~SIZE~0) (= |#NULL.offset| 0) (<= 100000 ~MAX~0)))) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:52:58,091 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 25 [2019-10-07 00:52:58,400 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:52:58,400 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 11] total 14 [2019-10-07 00:52:58,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 00:52:58,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 00:52:58,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2019-10-07 00:52:58,407 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 14 states. [2019-10-07 00:52:58,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:52:58,411 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-10-07 00:52:58,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 00:52:58,412 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2019-10-07 00:52:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:52:58,413 INFO L225 Difference]: With dead ends: 17 [2019-10-07 00:52:58,413 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 00:52:58,415 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2019-10-07 00:52:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 00:52:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 00:52:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 00:52:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 00:52:58,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-07 00:52:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:52:58,425 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 00:52:58,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 00:52:58,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 00:52:58,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 00:52:58,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:52:58,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 00:52:58,655 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:52:58,656 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:52:58,656 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:52:58,656 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-10-07 00:52:58,656 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:52:58,656 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 00:52:58,656 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 34) no Hoare annotation was computed. [2019-10-07 00:52:58,656 INFO L446 ceAbstractionStarter]: At program point L19-3(lines 19 26) the Hoare annotation is: true [2019-10-07 00:52:58,657 INFO L446 ceAbstractionStarter]: At program point L30(line 30) the Hoare annotation is: true [2019-10-07 00:52:58,657 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 34) the Hoare annotation is: true [2019-10-07 00:52:58,657 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-10-07 00:52:58,657 INFO L446 ceAbstractionStarter]: At program point L28-3(lines 28 31) the Hoare annotation is: true [2019-10-07 00:52:58,657 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 32) no Hoare annotation was computed. [2019-10-07 00:52:58,657 INFO L443 ceAbstractionStarter]: For program point L14-1(lines 14 32) no Hoare annotation was computed. [2019-10-07 00:52:58,658 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-07 00:52:58,658 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-07 00:52:58,658 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-07 00:52:58,658 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-07 00:52:58,658 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-07 00:52:58,658 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-07 00:52:58,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:52:58 BoogieIcfgContainer [2019-10-07 00:52:58,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 00:52:58,670 INFO L168 Benchmark]: Toolchain (without parser) took 3345.12 ms. Allocated memory was 136.8 MB in the beginning and 249.0 MB in the end (delta: 112.2 MB). Free memory was 102.1 MB in the beginning and 187.8 MB in the end (delta: -85.7 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,670 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.30 ms. Allocated memory is still 136.8 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,672 INFO L168 Benchmark]: Boogie Preprocessor took 122.76 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 178.5 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,673 INFO L168 Benchmark]: RCFGBuilder took 421.05 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 159.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,674 INFO L168 Benchmark]: TraceAbstraction took 2479.32 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 159.3 MB in the beginning and 187.8 MB in the end (delta: -28.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-10-07 00:52:58,677 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 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 314.30 ms. Allocated memory is still 136.8 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.76 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.8 MB in the beginning and 178.5 MB in the end (delta: -86.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.05 ms. Allocated memory is still 200.3 MB. Free memory was 178.5 MB in the beginning and 159.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2479.32 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 159.3 MB in the beginning and 187.8 MB in the end (delta: -28.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * 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: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 719 SizeOfPredicates, 2 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 779, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 22, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 11, TOOLS_POST_TIME[ms]: 140, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 24, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 9, TOOLS_QUANTIFIERELIM_APPLICATIONS: 18, TOOLS_QUANTIFIERELIM_TIME[ms]: 153, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 82, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 24, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 19, DOMAIN_JOIN_TIME[ms]: 460, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 65, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 7, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 1, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 271, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 271, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 84, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 84, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 12, DAG_COMPRESSION_PROCESSED_NODES: 69, DAG_COMPRESSION_RETAINED_NODES: 45, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...