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/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:03:11,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:03:11,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:03:11,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:03:11,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:03:11,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:03:11,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:03:11,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:03:11,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:03:11,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:03:11,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:03:11,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:03:11,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:03:11,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:03:11,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:03:11,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:03:11,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:03:11,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:03:11,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:03:11,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:03:11,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:03:11,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:03:11,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:03:11,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:03:11,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:03:11,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:03:11,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:03:11,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:03:11,921 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 [2019-10-15 03:03:11,942 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:03:11,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:03:11,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:03:11,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:03:11,945 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:03:11,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:03:11,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:03:11,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:03:11,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:03:11,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:03:11,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:03:11,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:03:11,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:03:11,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:03:11,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:03:11,948 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:03:11,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:03:11,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:03:11,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:03:11,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:03:11,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:03:11,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:03:11,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:03:11,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:03:11,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:03:11,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:03:11,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:03:11,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:03:11,951 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 [2019-10-15 03:03:12,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:03:12,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:03:12,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:03:12,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:03:12,320 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:03:12,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-15 03:03:12,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40e2520c4/2a849086894745dc93002a8e1c3f8a4b/FLAGfecff9317 [2019-10-15 03:03:12,993 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:03:12,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-15 03:03:13,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40e2520c4/2a849086894745dc93002a8e1c3f8a4b/FLAGfecff9317 [2019-10-15 03:03:13,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40e2520c4/2a849086894745dc93002a8e1c3f8a4b [2019-10-15 03:03:13,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:03:13,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:03:13,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:13,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:03:13,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:03:13,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517e93e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13, skipping insertion in model container [2019-10-15 03:03:13,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,414 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:03:13,434 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:03:13,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:13,651 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:03:13,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:13,684 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:03:13,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13 WrapperNode [2019-10-15 03:03:13,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:13,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:03:13,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:03:13,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:03:13,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (1/1) ... [2019-10-15 03:03:13,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:03:13,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:03:13,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:03:13,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:03:13,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (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 [2019-10-15 03:03:13,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:03:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:03:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:03:13,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:03:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:03:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:03:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:03:13,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:03:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:03:14,253 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:03:14,253 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:03:14,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:14 BoogieIcfgContainer [2019-10-15 03:03:14,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:03:14,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:03:14,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:03:14,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:03:14,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:03:13" (1/3) ... [2019-10-15 03:03:14,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464697f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:14, skipping insertion in model container [2019-10-15 03:03:14,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:13" (2/3) ... [2019-10-15 03:03:14,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464697f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:14, skipping insertion in model container [2019-10-15 03:03:14,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:14" (3/3) ... [2019-10-15 03:03:14,263 INFO L109 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2019-10-15 03:03:14,273 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:03:14,280 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:03:14,291 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:03:14,313 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:03:14,314 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:03:14,314 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:03:14,314 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:03:14,314 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:03:14,315 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:03:14,315 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:03:14,315 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:03:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-15 03:03:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:03:14,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:14,338 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:14,339 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:14,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:14,345 INFO L82 PathProgramCache]: Analyzing trace with hash -46279862, now seen corresponding path program 1 times [2019-10-15 03:03:14,353 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:14,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177993010] [2019-10-15 03:03:14,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:14,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:14,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:14,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177993010] [2019-10-15 03:03:14,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:03:14,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:03:14,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491987565] [2019-10-15 03:03:14,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:03:14,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:14,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:03:14,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:03:14,600 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-10-15 03:03:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:14,644 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2019-10-15 03:03:14,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:03:14,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-15 03:03:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:14,658 INFO L225 Difference]: With dead ends: 43 [2019-10-15 03:03:14,658 INFO L226 Difference]: Without dead ends: 23 [2019-10-15 03:03:14,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:03:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-15 03:03:14,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2019-10-15 03:03:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 03:03:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-10-15 03:03:14,706 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 14 [2019-10-15 03:03:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:14,707 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-10-15 03:03:14,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:03:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-15 03:03:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 03:03:14,710 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:14,711 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:14,713 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1515501576, now seen corresponding path program 1 times [2019-10-15 03:03:14,715 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:14,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380111506] [2019-10-15 03:03:14,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:14,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:14,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:14,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380111506] [2019-10-15 03:03:14,882 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720761165] [2019-10-15 03:03:14,882 INFO L94 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 [2019-10-15 03:03:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:14,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 03:03:14,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:14,979 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:15,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [63264765] [2019-10-15 03:03:15,071 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-15 03:03:15,071 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:15,098 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:15,108 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:15,109 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:15,190 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:03:15,704 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 38 for LOIs [2019-10-15 03:03:15,728 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:03:15,735 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:16,221 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:16,221 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 7] total 13 [2019-10-15 03:03:16,221 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396506498] [2019-10-15 03:03:16,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 03:03:16,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:16,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 03:03:16,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:03:16,225 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 13 states. [2019-10-15 03:03:19,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:19,772 INFO L93 Difference]: Finished difference Result 53 states and 71 transitions. [2019-10-15 03:03:19,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:03:19,774 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-10-15 03:03:19,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:19,775 INFO L225 Difference]: With dead ends: 53 [2019-10-15 03:03:19,776 INFO L226 Difference]: Without dead ends: 39 [2019-10-15 03:03:19,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 33 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2019-10-15 03:03:19,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-15 03:03:19,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26. [2019-10-15 03:03:19,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-15 03:03:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-10-15 03:03:19,798 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 15 [2019-10-15 03:03:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:19,799 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-10-15 03:03:19,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 03:03:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-10-15 03:03:19,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 03:03:19,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:19,805 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:20,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:20,010 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1733070538, now seen corresponding path program 2 times [2019-10-15 03:03:20,011 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:20,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678692318] [2019-10-15 03:03:20,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:20,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:20,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:20,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678692318] [2019-10-15 03:03:20,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215815346] [2019-10-15 03:03:20,143 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:20,287 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 03:03:20,288 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:03:20,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 03:03:20,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:24,655 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 23 [2019-10-15 03:03:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:03:27,082 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:31,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:03:31,883 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:03:31,883 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 15 [2019-10-15 03:03:31,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427924029] [2019-10-15 03:03:31,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:03:31,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:31,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:03:31,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=157, Unknown=4, NotChecked=0, Total=210 [2019-10-15 03:03:31,887 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 10 states. [2019-10-15 03:03:35,845 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2019-10-15 03:03:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:37,892 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2019-10-15 03:03:37,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:03:37,894 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-10-15 03:03:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:37,895 INFO L225 Difference]: With dead ends: 26 [2019-10-15 03:03:37,895 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:03:37,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=55, Invalid=181, Unknown=4, NotChecked=0, Total=240 [2019-10-15 03:03:37,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:03:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:03:37,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:03:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:03:37,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-15 03:03:37,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:37,898 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:03:37,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:03:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:03:37,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:03:38,103 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:38,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:03:38,314 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2019-10-15 03:03:38,615 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:03:38,615 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:38,615 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:38,615 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:03:38,615 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:03:38,615 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:03:38,615 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-10-15 03:03:38,616 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: (or (and (= main_~v~0 0) (= main_~x~0 0) (<= 0 main_~y~0) (<= main_~w~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2019-10-15 03:03:38,616 INFO L439 ceAbstractionStarter]: At program point L20-3(line 20) the Hoare annotation is: (or (and (<= main_~v~0 0) (< 0 (+ (div main_~v~0 4294967296) 1))) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-15 03:03:38,616 INFO L439 ceAbstractionStarter]: At program point L20-4(line 20) the Hoare annotation is: (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2019-10-15 03:03:38,616 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 22) the Hoare annotation is: (or (and (= main_~v~0 0) (= main_~x~0 0) (<= 0 main_~y~0) (<= main_~w~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2019-10-15 03:03:38,616 INFO L443 ceAbstractionStarter]: For program point L21(lines 19 22) no Hoare annotation was computed. [2019-10-15 03:03:38,616 INFO L439 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (or (and (= main_~v~0 0) (= main_~x~0 0) (<= 0 main_~y~0) (<= main_~w~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2019-10-15 03:03:38,617 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-10-15 03:03:38,617 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (and (= main_~v~0 0) (= main_~x~0 0) (<= 0 main_~y~0) (<= main_~w~0 0) (<= 0 main_~w~0) (= main_~z~0 0) (<= main_~y~0 0)) (and (<= 10 (mod main_~v~0 4294967296)) (< (mod (+ main_~v~0 4294967295) 4294967296) 10))) [2019-10-15 03:03:38,617 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:03:38,617 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:03:38,617 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:38,618 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:03:38,618 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:03:38,618 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:38,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:03:38 BoogieIcfgContainer [2019-10-15 03:03:38,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:03:38,640 INFO L168 Benchmark]: Toolchain (without parser) took 25247.13 ms. Allocated memory was 144.7 MB in the beginning and 245.4 MB in the end (delta: 100.7 MB). Free memory was 102.7 MB in the beginning and 161.7 MB in the end (delta: -59.0 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,641 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.76 ms. Allocated memory is still 144.7 MB. Free memory was 102.5 MB in the beginning and 93.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,643 INFO L168 Benchmark]: Boogie Preprocessor took 125.62 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 93.0 MB in the beginning and 179.6 MB in the end (delta: -86.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,644 INFO L168 Benchmark]: RCFGBuilder took 443.12 ms. Allocated memory is still 201.3 MB. Free memory was 179.6 MB in the beginning and 163.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,645 INFO L168 Benchmark]: TraceAbstraction took 24381.66 ms. Allocated memory was 201.3 MB in the beginning and 245.4 MB in the end (delta: 44.0 MB). Free memory was 162.5 MB in the beginning and 161.7 MB in the end (delta: 760.6 kB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:38,650 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.76 ms. Allocated memory is still 144.7 MB. Free memory was 102.5 MB in the beginning and 93.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.62 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 93.0 MB in the beginning and 179.6 MB in the end (delta: -86.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 443.12 ms. Allocated memory is still 201.3 MB. Free memory was 179.6 MB in the beginning and 163.1 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24381.66 ms. Allocated memory was 201.3 MB in the beginning and 245.4 MB in the end (delta: 44.0 MB). Free memory was 162.5 MB in the beginning and 161.7 MB in the end (delta: 760.6 kB). Peak memory consumption was 44.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (v <= 0 && 0 < v / 4294967296 + 1) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((v == 0 && x == 0) && 0 <= y) && w <= 0) && 0 <= w) && z == 0) && y <= 0) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ((((((v == 0 && x == 0) && 0 <= y) && w <= 0) && 0 <= w) && z == 0) && y <= 0) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((v == 0 && x == 0) && 0 <= y) && w <= 0) && 0 <= w) && z == 0) && y <= 0) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((v == 0 && x == 0) && 0 <= y) && w <= 0) && 0 <= w) && z == 0) && y <= 0) || (10 <= v % 4294967296 && (v + 4294967295) % 4294967296 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 24.3s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 56 SDtfs, 43 SDslu, 163 SDs, 0 SdLazy, 107 SolverSat, 29 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 64 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 13 PreInvPairs, 27 NumberOfFragments, 181 HoareAnnotationTreeSize, 13 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 97 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 106 ConstructedInterpolants, 2 QuantifiedInterpolants, 4802 SizeOfPredicates, 4 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 664, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 25, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME[ms]: 33, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 33, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 21, TOOLS_QUANTIFIERELIM_TIME[ms]: 52, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 30, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 28, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 22, DOMAIN_JOIN_TIME[ms]: 374, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 109, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 10, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 255, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 254, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 6, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 6, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 83, DAG_COMPRESSION_RETAINED_NODES: 50, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...