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/loop-lit/cggmp2005b.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:02:40,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:02:40,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:02:40,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:02:40,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:02:40,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:02:40,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:02:40,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:02:40,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:02:40,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:02:40,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:02:40,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:02:40,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:02:40,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:02:40,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:02:40,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:02:40,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:02:40,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:02:40,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:02:40,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:02:40,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:02:40,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:02:40,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:02:40,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:02:40,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:02:40,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:02:40,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:02:40,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:02:40,116 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 03:02:40,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:02:40,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:02:40,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:02:40,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:02:40,142 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:02:40,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:02:40,142 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:02:40,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:02:40,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:02:40,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:02:40,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:02:40,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:02:40,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:02:40,145 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:02:40,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:02:40,146 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:02:40,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:02:40,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:02:40,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:02:40,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:02:40,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:02:40,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:02:40,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:02:40,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:02:40,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:02:40,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:02:40,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:02:40,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:02:40,149 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 03:02:40,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:02:40,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:02:40,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:02:40,517 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:02:40,518 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:02:40,519 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005b.i [2019-10-15 03:02:40,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de830fcc2/3376868b0190480eb001e15581d3ed0c/FLAG393a4451c [2019-10-15 03:02:41,125 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:02:41,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005b.i [2019-10-15 03:02:41,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de830fcc2/3376868b0190480eb001e15581d3ed0c/FLAG393a4451c [2019-10-15 03:02:41,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de830fcc2/3376868b0190480eb001e15581d3ed0c [2019-10-15 03:02:41,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:02:41,558 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:02:41,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:41,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:02:41,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:02:41,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:41,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630c08ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41, skipping insertion in model container [2019-10-15 03:02:41,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:41,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:02:41,609 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:02:41,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:41,911 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:02:41,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:02:41,951 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:02:41,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41 WrapperNode [2019-10-15 03:02:41,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:02:41,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:02:41,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:02:41,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:02:42,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (1/1) ... [2019-10-15 03:02:42,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:02:42,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:02:42,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:02:42,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:02:42,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (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 03:02:42,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:02:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:02:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:02:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:02:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:02:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:02:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:02:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:02:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:02:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:02:42,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:02:42,374 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:02:42,374 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 03:02:42,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:42 BoogieIcfgContainer [2019-10-15 03:02:42,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:02:42,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:02:42,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:02:42,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:02:42,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:02:41" (1/3) ... [2019-10-15 03:02:42,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a4b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:42, skipping insertion in model container [2019-10-15 03:02:42,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:02:41" (2/3) ... [2019-10-15 03:02:42,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583a4b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:02:42, skipping insertion in model container [2019-10-15 03:02:42,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:02:42" (3/3) ... [2019-10-15 03:02:42,384 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005b.i [2019-10-15 03:02:42,396 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:02:42,413 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:02:42,451 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:02:42,492 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:02:42,492 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:02:42,493 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:02:42,493 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:02:42,493 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:02:42,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:02:42,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:02:42,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:02:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-15 03:02:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:02:42,523 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:42,524 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:42,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:42,531 INFO L82 PathProgramCache]: Analyzing trace with hash 749272152, now seen corresponding path program 1 times [2019-10-15 03:02:42,538 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:42,539 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516968423] [2019-10-15 03:02:42,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,539 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:42,677 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 03:02:42,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516968423] [2019-10-15 03:02:42,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:42,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:02:42,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753269377] [2019-10-15 03:02:42,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:02:42,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:42,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:02:42,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:02:42,705 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-10-15 03:02:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:42,756 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-15 03:02:42,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:02:42,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 03:02:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:42,776 INFO L225 Difference]: With dead ends: 31 [2019-10-15 03:02:42,776 INFO L226 Difference]: Without dead ends: 14 [2019-10-15 03:02:42,783 INFO L600 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 [2019-10-15 03:02:42,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-15 03:02:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-15 03:02:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-15 03:02:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-15 03:02:42,832 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-10-15 03:02:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:42,833 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-15 03:02:42,834 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:02:42,835 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-15 03:02:42,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 03:02:42,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:42,837 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:42,838 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 968676257, now seen corresponding path program 1 times [2019-10-15 03:02:42,840 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:42,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576925886] [2019-10-15 03:02:42,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:02:42,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576925886] [2019-10-15 03:02:42,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:02:42,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:02:42,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117772] [2019-10-15 03:02:42,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:02:42,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:42,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:02:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:02:42,923 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-10-15 03:02:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:42,949 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-10-15 03:02:42,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:02:42,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-15 03:02:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:42,951 INFO L225 Difference]: With dead ends: 23 [2019-10-15 03:02:42,952 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 03:02:42,955 INFO L600 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 [2019-10-15 03:02:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 03:02:42,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 03:02:42,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 03:02:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-10-15 03:02:42,966 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 13 [2019-10-15 03:02:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:42,967 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-10-15 03:02:42,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:02:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-15 03:02:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:02:42,968 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:02:42,968 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:02:42,969 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:02:42,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:02:42,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1898166767, now seen corresponding path program 1 times [2019-10-15 03:02:42,972 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:02:42,973 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176722989] [2019-10-15 03:02:42,973 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:02:42,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:02:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:02:43,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176722989] [2019-10-15 03:02:43,069 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664341975] [2019-10-15 03:02:43,069 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 03:02:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:02:43,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:02:43,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:02:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:02:43,141 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:02:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:02:43,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773487757] [2019-10-15 03:02:43,219 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-15 03:02:43,219 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:02:43,238 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:02:43,255 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:02:43,256 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:02:43,319 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:02:43,920 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 for LOIs [2019-10-15 03:02:43,950 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:02:43,955 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:02:44,147 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2019-10-15 03:02:44,355 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:02:44,356 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 12 [2019-10-15 03:02:44,356 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690319847] [2019-10-15 03:02:44,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:02:44,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:02:44,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:02:44,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:02:44,360 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 8 states. [2019-10-15 03:02:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:02:44,444 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-10-15 03:02:44,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:02:44,446 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-15 03:02:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:02:44,447 INFO L225 Difference]: With dead ends: 22 [2019-10-15 03:02:44,447 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:02:44,449 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:02:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:02:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:02:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:02:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:02:44,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-15 03:02:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:02:44,454 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:02:44,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:02:44,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:02:44,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:02:44,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:02:44,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:02:44,917 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2019-10-15 03:02:45,032 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:02:45,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:45,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:02:45,033 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:02:45,033 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:02:45,033 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:02:45,033 INFO L443 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-10-15 03:02:45,033 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2019-10-15 03:02:45,034 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 1 main_~i~0) (<= 20 main_~j~0) (<= main_~k~0 4) (<= 4 main_~k~0)) [2019-10-15 03:02:45,034 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 15 24) the Hoare annotation is: (or (and (and (<= 0 main_~i~0) (<= 9 main_~k~0) (<= main_~k~0 9)) (= (+ main_~j~0 100) 0) (<= main_~i~0 0)) (and (<= 1 main_~i~0) (<= 20 main_~j~0) (<= main_~k~0 4) (<= 4 main_~k~0))) [2019-10-15 03:02:45,034 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= 1 main_~i~0) (<= 0 (+ main_~j~0 100)) (<= main_~k~0 9)) [2019-10-15 03:02:45,034 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 24) the Hoare annotation is: (and (<= 20 main_~j~0) (< 100 main_~i~0) (<= main_~k~0 4) (<= 4 main_~k~0)) [2019-10-15 03:02:45,034 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2019-10-15 03:02:45,035 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:02:45,035 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:02:45,035 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:45,035 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:02:45,035 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:02:45,036 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:02:45,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:02:45 BoogieIcfgContainer [2019-10-15 03:02:45,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:02:45,058 INFO L168 Benchmark]: Toolchain (without parser) took 3499.77 ms. Allocated memory was 141.0 MB in the beginning and 231.7 MB in the end (delta: 90.7 MB). Free memory was 105.4 MB in the beginning and 143.2 MB in the end (delta: -37.8 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,059 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.32 ms. Allocated memory is still 141.0 MB. Free memory was 105.2 MB in the beginning and 95.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,061 INFO L168 Benchmark]: Boogie Preprocessor took 160.39 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 95.9 MB in the beginning and 184.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,062 INFO L168 Benchmark]: RCFGBuilder took 261.44 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 171.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,063 INFO L168 Benchmark]: TraceAbstraction took 2679.19 ms. Allocated memory was 205.5 MB in the beginning and 231.7 MB in the end (delta: 26.2 MB). Free memory was 171.3 MB in the beginning and 143.2 MB in the end (delta: 28.1 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:02:45,068 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 141.0 MB. Free memory was 124.3 MB in the beginning and 124.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 391.32 ms. Allocated memory is still 141.0 MB. Free memory was 105.2 MB in the beginning and 95.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.39 ms. Allocated memory was 141.0 MB in the beginning and 205.5 MB in the end (delta: 64.5 MB). Free memory was 95.9 MB in the beginning and 184.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 261.44 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 171.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2679.19 ms. Allocated memory was 205.5 MB in the beginning and 231.7 MB in the end (delta: 26.2 MB). Free memory was 171.3 MB in the beginning and 143.2 MB in the end (delta: 28.1 MB). Peak memory consumption was 54.3 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: 15]: Loop Invariant Derived loop invariant: ((((0 <= i && 9 <= k) && k <= 9) && j + 100 == 0) && i <= 0) || (((1 <= i && 20 <= j) && k <= 4) && 4 <= k) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((1 <= i && 20 <= j) && k <= 4) && 4 <= k - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (1 <= i && 0 <= j + 100) && k <= 9 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 40 SDtfs, 6 SDslu, 44 SDs, 0 SdLazy, 32 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 19 NumberOfFragments, 76 HoareAnnotationTreeSize, 12 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1236 SizeOfPredicates, 1 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 736, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 46, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 54, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 13, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 51, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 13, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 50, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME[ms]: 441, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME[ms]: 82, DOMAIN_ISSUBSETEQ_APPLICATIONS: 4, DOMAIN_ISSUBSETEQ_TIME[ms]: 14, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME[ms]: 31, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 461, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 460, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 4, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 8, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 88, DAG_COMPRESSION_RETAINED_NODES: 53, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...