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-examples/standard_vector_difference_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:30:14,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 00:30:14,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 00:30:14,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 00:30:14,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 00:30:14,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 00:30:14,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 00:30:14,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 00:30:14,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 00:30:14,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 00:30:14,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 00:30:14,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 00:30:14,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 00:30:14,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 00:30:14,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 00:30:14,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 00:30:14,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 00:30:14,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 00:30:14,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 00:30:14,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 00:30:14,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 00:30:14,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 00:30:14,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 00:30:14,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 00:30:14,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 00:30:14,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:30:14,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:30:14,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:30:14,330 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 00:30:14,356 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:30:14,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:30:14,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:30:14,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:30:14,357 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:30:14,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:30:14,358 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:30:14,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:30:14,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:30:14,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:30:14,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:30:14,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:30:14,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:30:14,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:30:14,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:30:14,360 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:30:14,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:30:14,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:30:14,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:30:14,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:30:14,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:30:14,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:30:14,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:30:14,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:30:14,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:30:14,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:30:14,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:30:14,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:30:14,362 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 00:30:14,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:30:14,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:30:14,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:30:14,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:30:14,680 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:30:14,681 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_vector_difference_ground.i [2019-10-07 00:30:14,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca7cff15/e8236a9459cc47dbaebb38c9aa8d7a98/FLAG29dec1e71 [2019-10-07 00:30:15,246 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:30:15,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_vector_difference_ground.i [2019-10-07 00:30:15,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca7cff15/e8236a9459cc47dbaebb38c9aa8d7a98/FLAG29dec1e71 [2019-10-07 00:30:15,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca7cff15/e8236a9459cc47dbaebb38c9aa8d7a98 [2019-10-07 00:30:15,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:30:15,634 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:30:15,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:30:15,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:30:15,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:30:15,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:15,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d7ea54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15, skipping insertion in model container [2019-10-07 00:30:15,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:15,652 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:30:15,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:30:15,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:30:15,863 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:30:15,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:30:15,904 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:30:15,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15 WrapperNode [2019-10-07 00:30:15,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:30:15,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:30:15,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:30:15,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:30:16,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (1/1) ... [2019-10-07 00:30:16,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:30:16,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:30:16,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:30:16,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:30:16,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (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 00:30:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:30:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:30:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 00:30:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:30:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 00:30:16,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 00:30:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 00:30:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:30:16,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:30:16,425 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:30:16,425 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-07 00:30:16,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:30:16 BoogieIcfgContainer [2019-10-07 00:30:16,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:30:16,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:30:16,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:30:16,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:30:16,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:30:15" (1/3) ... [2019-10-07 00:30:16,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327c8edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:30:16, skipping insertion in model container [2019-10-07 00:30:16,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:30:15" (2/3) ... [2019-10-07 00:30:16,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327c8edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:30:16, skipping insertion in model container [2019-10-07 00:30:16,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:30:16" (3/3) ... [2019-10-07 00:30:16,435 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_vector_difference_ground.i [2019-10-07 00:30:16,457 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:30:16,465 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:30:16,475 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:30:16,500 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:30:16,500 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:30:16,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:30:16,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:30:16,501 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:30:16,501 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:30:16,501 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:30:16,501 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:30:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-07 00:30:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-07 00:30:16,525 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:30:16,526 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:30:16,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:30:16,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:30:16,534 INFO L82 PathProgramCache]: Analyzing trace with hash -830750246, now seen corresponding path program 1 times [2019-10-07 00:30:16,544 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:30:16,544 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:30:16,545 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:30:16,545 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:30:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:30:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:30:16,794 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 00:30:16,794 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:30:16,795 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:30:16,795 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:30:16,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:30:16,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:30:16,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:30:16,829 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-10-07 00:30:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:30:16,893 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2019-10-07 00:30:16,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:30:16,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-07 00:30:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:30:16,908 INFO L225 Difference]: With dead ends: 34 [2019-10-07 00:30:16,908 INFO L226 Difference]: Without dead ends: 18 [2019-10-07 00:30:16,914 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 00:30:16,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-07 00:30:16,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-07 00:30:16,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-07 00:30:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-07 00:30:16,956 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2019-10-07 00:30:16,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:30:16,957 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-07 00:30:16,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:30:16,957 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-07 00:30:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-07 00:30:16,958 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:30:16,959 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:30:16,959 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:30:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:30:16,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1504950251, now seen corresponding path program 1 times [2019-10-07 00:30:16,960 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:30:16,960 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:30:16,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:30:16,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:30:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:30:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:30:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 00:30:17,075 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:30:17,075 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 00:30:17,076 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 00:30:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:30:17,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 00:30:17,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 00:30:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 00:30:17,204 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 00:30:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 00:30:17,239 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 00:30:17,269 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-07 00:30:17,270 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 00:30:17,297 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 00:30:17,311 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 00:30:17,312 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 00:30:17,509 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-07 00:30:18,051 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 42 for LOIs [2019-10-07 00:30:18,072 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-07 00:30:18,083 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-07 00:30:18,083 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-07 00:30:18,084 INFO L193 IcfgInterpreter]: Reachable states at location L2 satisfy 121#(and (exists ((|v_main_~#b~0.base_BEFORE_CALL_1| Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (|v_main_~#b~0.offset_BEFORE_CALL_1| Int) (|v_main_~#c~0.base_BEFORE_CALL_1| Int) (v_prenex_6 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_prenex_2 Int) (v_prenex_3 Int) (v_prenex_1 Int) (|v_main_~#c~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (+ (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) |v_main_~#a~0.offset_BEFORE_CALL_1|) (* (- 1) (select (select |#memory_int| |v_main_~#b~0.base_BEFORE_CALL_1|) |v_main_~#b~0.offset_BEFORE_CALL_1|))) (select (select |#memory_int| |v_main_~#c~0.base_BEFORE_CALL_1|) |v_main_~#c~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (+ (select (select |#memory_int| v_prenex_6) v_prenex_2) (* (- 1) (select (select |#memory_int| v_prenex_1) v_prenex_3))) (select (select |#memory_int| v_prenex_5) v_prenex_4))))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:30:18,084 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 131#(and (<= __VERIFIER_assert_~cond 0) (exists ((|v_main_~#b~0.base_BEFORE_CALL_1| Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (|v_main_~#b~0.offset_BEFORE_CALL_1| Int) (|v_main_~#c~0.base_BEFORE_CALL_1| Int) (v_prenex_6 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_prenex_2 Int) (v_prenex_3 Int) (v_prenex_1 Int) (|v_main_~#c~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (+ (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) |v_main_~#a~0.offset_BEFORE_CALL_1|) (* (- 1) (select (select |#memory_int| |v_main_~#b~0.base_BEFORE_CALL_1|) |v_main_~#b~0.offset_BEFORE_CALL_1|))) (select (select |#memory_int| |v_main_~#c~0.base_BEFORE_CALL_1|) |v_main_~#c~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (+ (select (select |#memory_int| v_prenex_6) v_prenex_2) (* (- 1) (select (select |#memory_int| v_prenex_1) v_prenex_3))) (select (select |#memory_int| v_prenex_5) v_prenex_4))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:30:18,084 INFO L193 IcfgInterpreter]: Reachable states at location L2-1 satisfy 126#(and (<= __VERIFIER_assert_~cond 0) (exists ((|v_main_~#b~0.base_BEFORE_CALL_1| Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (|v_main_~#b~0.offset_BEFORE_CALL_1| Int) (|v_main_~#c~0.base_BEFORE_CALL_1| Int) (v_prenex_6 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_prenex_2 Int) (v_prenex_3 Int) (v_prenex_1 Int) (|v_main_~#c~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (+ (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) |v_main_~#a~0.offset_BEFORE_CALL_1|) (* (- 1) (select (select |#memory_int| |v_main_~#b~0.base_BEFORE_CALL_1|) |v_main_~#b~0.offset_BEFORE_CALL_1|))) (select (select |#memory_int| |v_main_~#c~0.base_BEFORE_CALL_1|) |v_main_~#c~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (+ (select (select |#memory_int| v_prenex_6) v_prenex_2) (* (- 1) (select (select |#memory_int| v_prenex_1) v_prenex_3))) (select (select |#memory_int| v_prenex_5) v_prenex_4))))) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-10-07 00:30:18,085 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initENTRY satisfy 135#(and (= |old(#NULL.base)| |#NULL.base|) (= |#valid| |old(#valid)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:30:18,086 INFO L193 IcfgInterpreter]: Reachable states at location L23 satisfy 111#(and (< main_~x~0 100000) (= |main_#t~mem7| (select (select |#memory_int| |main_~#b~0.base|) (+ (* 4 main_~x~0) |main_~#b~0.offset|))) (= (select (select |#memory_int| |main_~#a~0.base|) (+ (* 4 main_~x~0) |main_~#a~0.offset|)) |main_#t~mem6|) (= (select (select |#memory_int| |main_~#c~0.base|) (+ (* 4 main_~x~0) |main_~#c~0.offset|)) |main_#t~mem8|) (= main_~x~0 0) (<= 100000 main_~i~0) (not (< main_~i~0 100000)) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 00:30:18,086 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 101#true [2019-10-07 00:30:18,086 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:30:18,086 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#(and (= 0 |#NULL.base|) (<= |#NULL.base| 0) (= |#valid| |old(#valid)|) (<= 0 |#NULL.base|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| 0) (= |old(#length)| |#length|) (= 0 (select |old(#valid)| 0)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:30:18,087 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 140#(and (= |#valid| (store |old(#valid)| 0 0)) (= 0 |#NULL.base|) (<= |#NULL.base| 0) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) [2019-10-07 00:30:18,087 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-07 00:30:18,088 INFO L193 IcfgInterpreter]: Reachable states at location L11-3 satisfy 72#true [2019-10-07 00:30:18,088 INFO L193 IcfgInterpreter]: Reachable states at location L22-3 satisfy 106#(and (= main_~x~0 0) (<= 100000 main_~i~0) (not (< main_~i~0 100000)) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-07 00:30:18,089 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 116#(exists ((|v_main_~#b~0.base_BEFORE_CALL_1| Int) (|v_main_~#a~0.offset_BEFORE_CALL_1| Int) (|v_main_~#b~0.offset_BEFORE_CALL_1| Int) (|v_main_~#c~0.base_BEFORE_CALL_1| Int) (v_prenex_6 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_prenex_2 Int) (v_prenex_3 Int) (v_prenex_1 Int) (|v_main_~#c~0.offset_BEFORE_CALL_1| Int) (|v_main_~#a~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (+ (select (select |#memory_int| |v_main_~#a~0.base_BEFORE_CALL_1|) |v_main_~#a~0.offset_BEFORE_CALL_1|) (* (- 1) (select (select |#memory_int| |v_main_~#b~0.base_BEFORE_CALL_1|) |v_main_~#b~0.offset_BEFORE_CALL_1|))) (select (select |#memory_int| |v_main_~#c~0.base_BEFORE_CALL_1|) |v_main_~#c~0.offset_BEFORE_CALL_1|)))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (+ (select (select |#memory_int| v_prenex_6) v_prenex_2) (* (- 1) (select (select |#memory_int| v_prenex_1) v_prenex_3))) (select (select |#memory_int| v_prenex_5) v_prenex_4))))) [2019-10-07 00:30:18,390 INFO L211 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-07 00:30:18,390 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 10] total 15 [2019-10-07 00:30:18,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-07 00:30:18,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-07 00:30:18,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-10-07 00:30:18,396 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 15 states. [2019-10-07 00:30:18,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:30:18,743 INFO L93 Difference]: Finished difference Result 27 states and 36 transitions. [2019-10-07 00:30:18,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 00:30:18,744 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2019-10-07 00:30:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:30:18,745 INFO L225 Difference]: With dead ends: 27 [2019-10-07 00:30:18,745 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 00:30:18,747 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-07 00:30:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 00:30:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 00:30:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 00:30:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 00:30:18,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-07 00:30:18,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:30:18,749 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 00:30:18,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-07 00:30:18,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 00:30:18,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 00:30:18,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 00:30:18,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 00:30:19,164 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-07 00:30:19,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:30:19,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:30:19,164 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-07 00:30:19,164 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:30:19,165 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 00:30:19,165 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 26) no Hoare annotation was computed. [2019-10-07 00:30:19,165 INFO L439 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 00:30:19,165 INFO L443 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-10-07 00:30:19,165 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 20) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (= 0 (select |#valid| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 00:30:19,165 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 15) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (= 0 (select |#valid| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 00:30:19,166 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 5 26) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 00:30:19,166 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 24) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (<= 100000 main_~i~0) (= 0 (select |#valid| 0)) (<= main_~x~0 0) (<= 0 main_~x~0)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-07 00:30:19,166 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-07 00:30:19,166 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-07 00:30:19,166 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-07 00:30:19,166 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-07 00:30:19,167 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-07 00:30:19,167 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-07 00:30:19,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:30:19 BoogieIcfgContainer [2019-10-07 00:30:19,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 00:30:19,194 INFO L168 Benchmark]: Toolchain (without parser) took 3560.27 ms. Allocated memory was 145.8 MB in the beginning and 243.3 MB in the end (delta: 97.5 MB). Free memory was 103.9 MB in the beginning and 200.8 MB in the end (delta: -96.9 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2019-10-07 00:30:19,195 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 00:30:19,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.89 ms. Allocated memory is still 145.8 MB. Free memory was 103.9 MB in the beginning and 93.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-07 00:30:19,197 INFO L168 Benchmark]: Boogie Preprocessor took 134.44 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.6 MB in the beginning and 181.1 MB in the end (delta: -87.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 00:30:19,198 INFO L168 Benchmark]: RCFGBuilder took 386.70 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 161.7 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-10-07 00:30:19,199 INFO L168 Benchmark]: TraceAbstraction took 2764.58 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 161.7 MB in the beginning and 200.8 MB in the end (delta: -39.1 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2019-10-07 00:30:19,202 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory is still 121.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.89 ms. Allocated memory is still 145.8 MB. Free memory was 103.9 MB in the beginning and 93.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.44 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.6 MB in the beginning and 181.1 MB in the end (delta: -87.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 386.70 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 161.7 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2764.58 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 161.7 MB in the beginning and 200.8 MB in the end (delta: -39.1 MB). Peak memory consumption was 110.1 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 #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 #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: 2]: 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: 11]: Loop Invariant [2019-10-07 00:30:19,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || 0 == \valid[0]) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 22]: Loop Invariant [2019-10-07 00:30:19,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,215 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,216 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || !(0 <= #NULL)) || (((100000 <= i && 0 == \valid[0]) && x <= 0) && 0 <= x)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - InvariantResult [Line: 17]: Loop Invariant [2019-10-07 00:30:19,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-07 00:30:19,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: ((((!(#NULL <= 0) || 0 == \valid[0]) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 24 SDtfs, 6 SDslu, 36 SDs, 0 SdLazy, 53 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 9 LocationsWithAnnotation, 10 PreInvPairs, 20 NumberOfFragments, 180 HoareAnnotationTreeSize, 10 FomulaSimplifications, 170 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 806 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 820, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 26, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME[ms]: 374, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 14, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 21, TOOLS_QUANTIFIERELIM_TIME[ms]: 376, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 119, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 23, DOMAIN_JOIN_TIME[ms]: 244, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME[ms]: 8, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 39, DOMAIN_ISSUBSETEQ_APPLICATIONS: 5, DOMAIN_ISSUBSETEQ_TIME[ms]: 21, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 417, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 416, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 5, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 70, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 69, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 77, DAG_COMPRESSION_RETAINED_NODES: 47, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...