/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:51:36,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:51:36,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:51:36,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:51:36,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:51:36,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:51:36,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:51:36,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:51:36,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:51:36,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:51:36,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:51:36,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:51:36,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:51:36,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:51:36,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:51:36,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:51:36,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:51:36,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:51:36,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:51:36,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:51:36,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:51:36,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:51:36,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:51:36,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:51:36,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:51:36,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:51:36,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:51:36,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:51:36,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:51:36,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:51:36,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:51:36,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:51:36,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:51:36,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:51:36,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:51:36,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:51:36,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:51:36,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:51:36,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:51:36,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:51:36,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:51:36,729 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:51:36,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:51:36,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:51:36,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:51:36,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:51:36,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:51:36,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:51:36,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:51:36,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:51:36,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:51:36,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:51:36,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:51:36,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:51:36,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:51:36,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:51:36,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:51:36,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:51:36,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:51:36,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:51:36,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:51:36,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:51:36,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:51:37,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:51:37,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:51:37,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:51:37,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:51:37,201 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:51:37,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-01-06 16:51:37,286 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbaaa63fc/02bc46957c5844d2a6d88edf52d5552f/FLAG48719151f [2021-01-06 16:51:37,900 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:51:37,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-lit/jm2006_variant.i [2021-01-06 16:51:37,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbaaa63fc/02bc46957c5844d2a6d88edf52d5552f/FLAG48719151f [2021-01-06 16:51:38,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/bbaaa63fc/02bc46957c5844d2a6d88edf52d5552f [2021-01-06 16:51:38,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:51:38,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:51:38,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:51:38,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:51:38,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:51:38,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42289f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38, skipping insertion in model container [2021-01-06 16:51:38,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:51:38,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:51:38,496 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] [2021-01-06 16:51:38,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:51:38,523 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:51:38,539 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-lit/jm2006_variant.i[895,908] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] [2021-01-06 16:51:38,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:51:38,568 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:51:38,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38 WrapperNode [2021-01-06 16:51:38,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:51:38,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:51:38,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:51:38,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:51:38,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:51:38,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:51:38,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:51:38,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:51:38,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... [2021-01-06 16:51:38,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:51:38,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:51:38,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:51:38,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:51:38,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:51:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:51:39,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:51:39,025 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-06 16:51:39,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:51:39 BoogieIcfgContainer [2021-01-06 16:51:39,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:51:39,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:51:39,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:51:39,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:51:39,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:51:38" (1/3) ... [2021-01-06 16:51:39,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e1f115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:51:39, skipping insertion in model container [2021-01-06 16:51:39,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:51:38" (2/3) ... [2021-01-06 16:51:39,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e1f115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:51:39, skipping insertion in model container [2021-01-06 16:51:39,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:51:39" (3/3) ... [2021-01-06 16:51:39,037 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-01-06 16:51:39,045 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:51:39,078 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:51:39,100 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:51:39,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:51:39,128 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:51:39,129 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:51:39,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:51:39,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:51:39,129 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:51:39,129 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:51:39,129 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:51:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-01-06 16:51:39,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 16:51:39,150 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:51:39,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:51:39,152 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:51:39,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:51:39,158 INFO L82 PathProgramCache]: Analyzing trace with hash 179632146, now seen corresponding path program 1 times [2021-01-06 16:51:39,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:51:39,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981107565] [2021-01-06 16:51:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:51:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:51:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:51:39,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981107565] [2021-01-06 16:51:39,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:51:39,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 16:51:39,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845205232] [2021-01-06 16:51:39,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 16:51:39,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:51:39,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 16:51:39,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:51:39,653 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 5 states. [2021-01-06 16:51:39,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:51:39,968 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-01-06 16:51:39,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 16:51:39,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-01-06 16:51:39,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:51:39,979 INFO L225 Difference]: With dead ends: 36 [2021-01-06 16:51:39,980 INFO L226 Difference]: Without dead ends: 10 [2021-01-06 16:51:39,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 16:51:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-01-06 16:51:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-01-06 16:51:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-01-06 16:51:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-01-06 16:51:40,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-01-06 16:51:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:51:40,017 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-01-06 16:51:40,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 16:51:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-01-06 16:51:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 16:51:40,018 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:51:40,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:51:40,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:51:40,018 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:51:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:51:40,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1275235031, now seen corresponding path program 1 times [2021-01-06 16:51:40,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:51:40,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255025860] [2021-01-06 16:51:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:51:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:51:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:51:40,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255025860] [2021-01-06 16:51:40,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567976263] [2021-01-06 16:51:40,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:51:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:51:40,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 23 conjunts are in the unsatisfiable core [2021-01-06 16:51:40,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:51:40,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 16:51:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:51:40,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 16:51:40,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-01-06 16:51:40,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149594277] [2021-01-06 16:51:40,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 16:51:40,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:51:40,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 16:51:40,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-01-06 16:51:40,512 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2021-01-06 16:51:40,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:51:40,831 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-01-06 16:51:40,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 16:51:40,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2021-01-06 16:51:40,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:51:40,833 INFO L225 Difference]: With dead ends: 18 [2021-01-06 16:51:40,833 INFO L226 Difference]: Without dead ends: 12 [2021-01-06 16:51:40,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-01-06 16:51:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-01-06 16:51:40,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-01-06 16:51:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-01-06 16:51:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-01-06 16:51:40,844 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-01-06 16:51:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:51:40,845 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-01-06 16:51:40,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 16:51:40,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-01-06 16:51:40,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 16:51:40,846 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:51:40,846 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:51:41,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 16:51:41,058 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:51:41,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:51:41,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1486571063, now seen corresponding path program 2 times [2021-01-06 16:51:41,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:51:41,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338236501] [2021-01-06 16:51:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:51:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:51:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-06 16:51:41,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338236501] [2021-01-06 16:51:41,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243077953] [2021-01-06 16:51:41,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:51:41,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 16:51:41,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 16:51:41,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 35 conjunts are in the unsatisfiable core [2021-01-06 16:51:41,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:51:41,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 16:51:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:51:41,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 16:51:41,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2021-01-06 16:51:41,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754290741] [2021-01-06 16:51:41,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-01-06 16:51:41,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:51:41,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-01-06 16:51:41,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-01-06 16:51:41,543 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2021-01-06 16:51:41,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:51:41,762 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2021-01-06 16:51:41,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-06 16:51:41,762 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2021-01-06 16:51:41,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:51:41,762 INFO L225 Difference]: With dead ends: 15 [2021-01-06 16:51:41,762 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 16:51:41,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-01-06 16:51:41,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 16:51:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 16:51:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 16:51:41,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 16:51:41,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-01-06 16:51:41,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:51:41,764 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 16:51:41,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-01-06 16:51:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 16:51:41,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 16:51:41,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:51:41,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 16:51:42,059 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 16:51:42,060 INFO L185 CegarLoopUtils]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0)) (.cse0 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point L19(line 19) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L192 CegarLoopUtils]: At program point L38(lines 38 40) the Hoare annotation is: true [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 16:51:42,061 INFO L189 CegarLoopUtils]: For program point L28(line 28) no Hoare annotation was computed. [2021-01-06 16:51:42,062 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-01-06 16:51:42,062 INFO L189 CegarLoopUtils]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-01-06 16:51:42,062 INFO L192 CegarLoopUtils]: At program point L41(lines 24 42) the Hoare annotation is: true [2021-01-06 16:51:42,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:51:42 BoogieIcfgContainer [2021-01-06 16:51:42,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:51:42,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:51:42,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:51:42,091 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:51:42,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:51:39" (3/4) ... [2021-01-06 16:51:42,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 16:51:42,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-01-06 16:51:42,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 16:51:42,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:51:42,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:51:42,171 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-lit/jm2006_variant.i-witness.graphml [2021-01-06 16:51:42,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:51:42,173 INFO L168 Benchmark]: Toolchain (without parser) took 3897.99 ms. Allocated memory is still 156.2 MB. Free memory was 131.1 MB in the beginning and 61.5 MB in the end (delta: 69.6 MB). Peak memory consumption was 71.2 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,173 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:51:42,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.62 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 121.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 156.2 MB. Free memory was 121.0 MB in the beginning and 119.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,175 INFO L168 Benchmark]: Boogie Preprocessor took 25.31 ms. Allocated memory is still 156.2 MB. Free memory was 119.7 MB in the beginning and 118.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,176 INFO L168 Benchmark]: RCFGBuilder took 386.53 ms. Allocated memory is still 156.2 MB. Free memory was 118.6 MB in the beginning and 107.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,176 INFO L168 Benchmark]: TraceAbstraction took 3058.67 ms. Allocated memory is still 156.2 MB. Free memory was 106.8 MB in the beginning and 64.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,177 INFO L168 Benchmark]: Witness Printer took 80.88 ms. Allocated memory is still 156.2 MB. Free memory was 64.2 MB in the beginning and 61.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:51:42,180 INFO L339 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 156.2 MB. Free memory is still 129.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 290.62 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 121.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 156.2 MB. Free memory was 121.0 MB in the beginning and 119.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 25.31 ms. Allocated memory is still 156.2 MB. Free memory was 119.7 MB in the beginning and 118.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 386.53 ms. Allocated memory is still 156.2 MB. Free memory was 118.6 MB in the beginning and 107.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3058.67 ms. Allocated memory is still 156.2 MB. Free memory was 106.8 MB in the beginning and 64.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 8.0 GB. * Witness Printer took 80.88 ms. Allocated memory is still 156.2 MB. Free memory was 64.2 MB in the beginning and 61.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: z + y + i <= x + j && x + j <= z + y + i - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 35 SDslu, 63 SDs, 0 SdLazy, 122 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 3606 SizeOfPredicates, 12 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...