java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:31:44,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:31:44,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:31:44,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:31:44,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:31:44,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:31:44,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:31:44,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:31:44,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:31:44,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:31:44,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:31:44,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:31:44,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:31:44,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:31:44,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:31:44,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:31:44,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:31:44,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:31:44,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:31:44,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:31:44,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:31:44,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:31:44,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:31:44,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:31:44,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:31:44,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:31:44,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:31:44,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:31:44,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:31:44,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:31:44,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:31:44,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:31:44,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:31:44,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:31:44,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:31:44,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:31:44,843 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 01:31:44,861 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:31:44,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:31:44,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:31:44,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:31:44,865 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:31:44,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:31:44,865 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:31:44,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:31:44,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:31:44,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:31:44,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:31:44,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:31:44,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:31:44,867 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:31:44,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:31:44,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:31:44,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:31:44,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:31:44,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:31:44,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:31:44,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:31:44,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:31:44,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:31:44,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:31:44,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:31:44,871 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:31:44,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:31:44,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:31:44,872 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 01:31:45,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:31:45,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:31:45,169 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:31:45,170 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:31:45,171 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:31:45,172 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-10-15 01:31:45,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59c1e8803/186c7621f73b4f16926676175052fbbb/FLAG3e96da548 [2019-10-15 01:31:45,727 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:31:45,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2019-10-15 01:31:45,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59c1e8803/186c7621f73b4f16926676175052fbbb/FLAG3e96da548 [2019-10-15 01:31:46,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59c1e8803/186c7621f73b4f16926676175052fbbb [2019-10-15 01:31:46,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:31:46,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:31:46,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:31:46,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:31:46,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:31:46,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3d1fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46, skipping insertion in model container [2019-10-15 01:31:46,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,147 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:31:46,164 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:31:46,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:31:46,327 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:31:46,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:31:46,370 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:31:46,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46 WrapperNode [2019-10-15 01:31:46,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:31:46,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:31:46,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:31:46,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:31:46,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (1/1) ... [2019-10-15 01:31:46,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:31:46,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:31:46,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:31:46,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:31:46,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (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 01:31:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:31:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:31:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:31:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2019-10-15 01:31:46,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2019-10-15 01:31:46,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:31:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:31:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:31:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:31:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2019-10-15 01:31:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2019-10-15 01:31:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:31:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:31:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:31:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:31:46,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:31:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:31:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:31:46,956 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:31:46,957 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 01:31:46,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:31:46 BoogieIcfgContainer [2019-10-15 01:31:46,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:31:46,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:31:46,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:31:46,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:31:46,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:31:46" (1/3) ... [2019-10-15 01:31:46,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476c05ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:31:46, skipping insertion in model container [2019-10-15 01:31:46,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:31:46" (2/3) ... [2019-10-15 01:31:46,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476c05ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:31:46, skipping insertion in model container [2019-10-15 01:31:46,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:31:46" (3/3) ... [2019-10-15 01:31:46,967 INFO L109 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2019-10-15 01:31:46,984 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:31:46,991 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:31:47,002 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:31:47,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:31:47,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:31:47,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:31:47,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:31:47,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:31:47,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:31:47,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:31:47,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:31:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-15 01:31:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 01:31:47,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:31:47,055 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:31:47,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:31:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:31:47,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1881434599, now seen corresponding path program 1 times [2019-10-15 01:31:47,069 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:31:47,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711557248] [2019-10-15 01:31:47,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:31:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:31:47,278 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 01:31:47,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711557248] [2019-10-15 01:31:47,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:31:47,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:31:47,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147384315] [2019-10-15 01:31:47,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:31:47,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:31:47,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:31:47,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:31:47,304 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 4 states. [2019-10-15 01:31:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:31:47,436 INFO L93 Difference]: Finished difference Result 74 states and 100 transitions. [2019-10-15 01:31:47,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:31:47,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-15 01:31:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:31:47,449 INFO L225 Difference]: With dead ends: 74 [2019-10-15 01:31:47,450 INFO L226 Difference]: Without dead ends: 41 [2019-10-15 01:31:47,454 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:31:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-15 01:31:47,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2019-10-15 01:31:47,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 01:31:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-10-15 01:31:47,505 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 14 [2019-10-15 01:31:47,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:31:47,506 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-10-15 01:31:47,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:31:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-10-15 01:31:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:31:47,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:31:47,507 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:31:47,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:31:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:31:47,508 INFO L82 PathProgramCache]: Analyzing trace with hash 36861000, now seen corresponding path program 1 times [2019-10-15 01:31:47,509 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:31:47,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427800526] [2019-10-15 01:31:47,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,509 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:31:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:31:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 01:31:47,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427800526] [2019-10-15 01:31:47,775 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:31:47,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:31:47,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506628808] [2019-10-15 01:31:47,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:31:47,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:31:47,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:31:47,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:31:47,778 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 8 states. [2019-10-15 01:31:47,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:31:47,918 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2019-10-15 01:31:47,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:31:47,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-15 01:31:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:31:47,920 INFO L225 Difference]: With dead ends: 38 [2019-10-15 01:31:47,920 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 01:31:47,921 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:31:47,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 01:31:47,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-15 01:31:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-15 01:31:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-10-15 01:31:47,929 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 15 [2019-10-15 01:31:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:31:47,930 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-10-15 01:31:47,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:31:47,930 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-15 01:31:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-15 01:31:47,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:31:47,932 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:31:47,932 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:31:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:31:47,932 INFO L82 PathProgramCache]: Analyzing trace with hash 162223555, now seen corresponding path program 1 times [2019-10-15 01:31:47,933 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:31:47,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235577541] [2019-10-15 01:31:47,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:31:47,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:31:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:31:48,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 01:31:48,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235577541] [2019-10-15 01:31:48,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:31:48,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:31:48,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45786784] [2019-10-15 01:31:48,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:31:48,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:31:48,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:31:48,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:31:48,140 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 8 states. [2019-10-15 01:31:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:31:48,277 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-10-15 01:31:48,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:31:48,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-15 01:31:48,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:31:48,279 INFO L225 Difference]: With dead ends: 36 [2019-10-15 01:31:48,279 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:31:48,280 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:31:48,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:31:48,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:31:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:31:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:31:48,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-15 01:31:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:31:48,282 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:31:48,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:31:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:31:48,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:31:48,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:31:48,382 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:31:48,382 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:31:48,382 INFO L446 ceAbstractionStarter]: At program point printOddENTRY(lines 7 9) the Hoare annotation is: true [2019-10-15 01:31:48,383 INFO L439 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= (* 2 (div printOdd_~i 2)) printOdd_~i))) [2019-10-15 01:31:48,383 INFO L443 ceAbstractionStarter]: For program point printOddFINAL(lines 7 9) no Hoare annotation was computed. [2019-10-15 01:31:48,383 INFO L443 ceAbstractionStarter]: For program point printOddEXIT(lines 7 9) no Hoare annotation was computed. [2019-10-15 01:31:48,383 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:31:48,383 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:31:48,383 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:31:48,384 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:31:48,384 INFO L443 ceAbstractionStarter]: For program point printEvenEXIT(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:31:48,384 INFO L446 ceAbstractionStarter]: At program point printEvenENTRY(lines 4 6) the Hoare annotation is: true [2019-10-15 01:31:48,384 INFO L443 ceAbstractionStarter]: For program point printEvenFINAL(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:31:48,384 INFO L439 ceAbstractionStarter]: At program point L5(line 5) the Hoare annotation is: (or (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))) (<= printEven_~i (* 2 (div printEven_~i 2)))) [2019-10-15 01:31:48,384 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 36) no Hoare annotation was computed. [2019-10-15 01:31:48,384 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-10-15 01:31:48,385 INFO L439 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (+ |main_#t~mem8| 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2019-10-15 01:31:48,385 INFO L443 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2019-10-15 01:31:48,385 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 34) no Hoare annotation was computed. [2019-10-15 01:31:48,385 INFO L446 ceAbstractionStarter]: At program point L28-3(lines 28 34) the Hoare annotation is: true [2019-10-15 01:31:48,385 INFO L446 ceAbstractionStarter]: At program point L16-3(lines 16 19) the Hoare annotation is: true [2019-10-15 01:31:48,386 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (<= |main_#t~mem5| (* 2 (div |main_#t~mem5| 2))) [2019-10-15 01:31:48,386 INFO L443 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-10-15 01:31:48,386 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2019-10-15 01:31:48,386 INFO L446 ceAbstractionStarter]: At program point L21-3(lines 21 27) the Hoare annotation is: true [2019-10-15 01:31:48,386 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 33) no Hoare annotation was computed. [2019-10-15 01:31:48,386 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 36) the Hoare annotation is: true [2019-10-15 01:31:48,386 INFO L443 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2019-10-15 01:31:48,387 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2019-10-15 01:31:48,387 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2019-10-15 01:31:48,387 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2019-10-15 01:31:48,387 INFO L443 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2019-10-15 01:31:48,387 INFO L443 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2019-10-15 01:31:48,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:31:48 BoogieIcfgContainer [2019-10-15 01:31:48,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:31:48,399 INFO L168 Benchmark]: Toolchain (without parser) took 2267.34 ms. Allocated memory was 138.4 MB in the beginning and 234.9 MB in the end (delta: 96.5 MB). Free memory was 102.9 MB in the beginning and 182.7 MB in the end (delta: -79.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:31:48,400 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 01:31:48,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 92.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:31:48,402 INFO L168 Benchmark]: Boogie Preprocessor took 123.05 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 179.5 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:31:48,403 INFO L168 Benchmark]: RCFGBuilder took 463.56 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 159.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:31:48,404 INFO L168 Benchmark]: TraceAbstraction took 1436.26 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 159.2 MB in the beginning and 182.7 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:31:48,408 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.91 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 92.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.05 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 179.5 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.56 ms. Allocated memory is still 201.9 MB. Free memory was 179.5 MB in the beginning and 159.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1436.26 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 159.2 MB in the beginning and 182.7 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 27 SDslu, 336 SDs, 0 SdLazy, 130 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 65 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 2169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...