/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-zilu/benchmark34_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 04:51:22,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 04:51:22,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 04:51:22,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 04:51:23,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 04:51:23,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 04:51:23,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 04:51:23,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 04:51:23,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 04:51:23,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 04:51:23,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 04:51:23,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 04:51:23,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 04:51:23,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 04:51:23,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 04:51:23,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 04:51:23,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 04:51:23,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 04:51:23,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 04:51:23,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 04:51:23,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 04:51:23,133 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 04:51:23,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 04:51:23,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 04:51:23,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 04:51:23,138 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 04:51:23,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 04:51:23,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 04:51:23,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 04:51:23,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 04:51:23,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 04:51:23,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 04:51:23,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 04:51:23,141 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 04:51:23,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 04:51:23,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 04:51:23,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 04:51:23,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 04:51:23,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 04:51:23,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 04:51:23,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 04:51:23,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 04:51:23,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 04:51:23,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 04:51:23,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 04:51:23,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 04:51:23,144 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 04:51:23,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 04:51:23,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 04:51:23,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 04:51:23,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 04:51:23,616 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 04:51:23,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2020-12-22 04:51:23,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60d1f023/eed9c94f6554429a8e92f662a3ed2e30/FLAG52f0931be [2020-12-22 04:51:24,298 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 04:51:24,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i [2020-12-22 04:51:24,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60d1f023/eed9c94f6554429a8e92f662a3ed2e30/FLAG52f0931be [2020-12-22 04:51:24,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60d1f023/eed9c94f6554429a8e92f662a3ed2e30 [2020-12-22 04:51:24,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 04:51:24,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 04:51:24,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 04:51:24,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 04:51:24,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 04:51:24,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7f175f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24, skipping insertion in model container [2020-12-22 04:51:24,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 04:51:24,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 04:51:24,879 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2020-12-22 04:51:24,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:51:24,909 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 04:51:24,924 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark34_conjunctive.i[873,886] [2020-12-22 04:51:24,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 04:51:24,945 INFO L208 MainTranslator]: Completed translation [2020-12-22 04:51:24,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24 WrapperNode [2020-12-22 04:51:24,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 04:51:24,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 04:51:24,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 04:51:24,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 04:51:24,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 04:51:24,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 04:51:24,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 04:51:24,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 04:51:24,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:24,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:25,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:25,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:25,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (1/1) ... [2020-12-22 04:51:25,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 04:51:25,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 04:51:25,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 04:51:25,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 04:51:25,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (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 [2020-12-22 04:51:25,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 04:51:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 04:51:25,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 04:51:25,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 04:51:25,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 04:51:25,417 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-22 04:51:25,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:25 BoogieIcfgContainer [2020-12-22 04:51:25,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 04:51:25,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 04:51:25,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 04:51:25,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 04:51:25,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:51:24" (1/3) ... [2020-12-22 04:51:25,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fa54dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:25, skipping insertion in model container [2020-12-22 04:51:25,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:24" (2/3) ... [2020-12-22 04:51:25,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fa54dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:25, skipping insertion in model container [2020-12-22 04:51:25,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:25" (3/3) ... [2020-12-22 04:51:25,445 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark34_conjunctive.i [2020-12-22 04:51:25,453 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 04:51:25,459 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 04:51:25,484 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 04:51:25,514 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 04:51:25,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 04:51:25,515 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 04:51:25,515 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 04:51:25,515 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 04:51:25,515 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 04:51:25,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 04:51:25,516 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 04:51:25,531 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-22 04:51:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:51:25,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:25,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:25,538 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:25,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:25,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1807089479, now seen corresponding path program 1 times [2020-12-22 04:51:25,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:25,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700690811] [2020-12-22 04:51:25,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:25,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:25,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700690811] [2020-12-22 04:51:25,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:51:25,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 04:51:25,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447288552] [2020-12-22 04:51:25,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 04:51:25,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:25,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 04:51:25,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:51:25,798 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-12-22 04:51:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:25,813 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-12-22 04:51:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 04:51:25,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-22 04:51:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:25,823 INFO L225 Difference]: With dead ends: 20 [2020-12-22 04:51:25,824 INFO L226 Difference]: Without dead ends: 8 [2020-12-22 04:51:25,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 04:51:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-22 04:51:25,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-22 04:51:25,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-22 04:51:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-22 04:51:25,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2020-12-22 04:51:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:25,860 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-22 04:51:25,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 04:51:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-22 04:51:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 04:51:25,861 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:25,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:25,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 04:51:25,862 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:25,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1806970315, now seen corresponding path program 1 times [2020-12-22 04:51:25,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:25,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868513328] [2020-12-22 04:51:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:25,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868513328] [2020-12-22 04:51:25,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 04:51:25,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 04:51:25,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103705540] [2020-12-22 04:51:25,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 04:51:25,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:25,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 04:51:25,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 04:51:25,932 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2020-12-22 04:51:25,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:25,945 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-12-22 04:51:25,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 04:51:25,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-22 04:51:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:25,946 INFO L225 Difference]: With dead ends: 13 [2020-12-22 04:51:25,947 INFO L226 Difference]: Without dead ends: 9 [2020-12-22 04:51:25,948 INFO L677 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 [2020-12-22 04:51:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-22 04:51:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-22 04:51:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-22 04:51:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-22 04:51:25,951 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-22 04:51:25,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:25,951 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-22 04:51:25,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 04:51:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-22 04:51:25,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 04:51:25,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:25,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:25,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 04:51:25,953 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:25,953 INFO L82 PathProgramCache]: Analyzing trace with hash 183170323, now seen corresponding path program 1 times [2020-12-22 04:51:25,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:25,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100896058] [2020-12-22 04:51:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:26,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100896058] [2020-12-22 04:51:26,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125593558] [2020-12-22 04:51:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:51:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:26,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-22 04:51:26,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:51:26,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:51:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:26,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:51:26,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-12-22 04:51:26,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588549794] [2020-12-22 04:51:26,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 04:51:26,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:26,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 04:51:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-12-22 04:51:26,343 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2020-12-22 04:51:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:26,427 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-12-22 04:51:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 04:51:26,428 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2020-12-22 04:51:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:26,429 INFO L225 Difference]: With dead ends: 14 [2020-12-22 04:51:26,429 INFO L226 Difference]: Without dead ends: 10 [2020-12-22 04:51:26,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-22 04:51:26,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-22 04:51:26,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-22 04:51:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-22 04:51:26,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-22 04:51:26,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-12-22 04:51:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:26,435 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-22 04:51:26,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 04:51:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-22 04:51:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 04:51:26,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 04:51:26,436 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 04:51:26,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-22 04:51:26,651 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 04:51:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 04:51:26,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1384978123, now seen corresponding path program 2 times [2020-12-22 04:51:26,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 04:51:26,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403686536] [2020-12-22 04:51:26,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 04:51:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 04:51:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 04:51:26,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403686536] [2020-12-22 04:51:26,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85635537] [2020-12-22 04:51:26,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:51:26,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 04:51:26,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 04:51:26,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-22 04:51:26,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 04:51:27,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-22 04:51:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 04:51:27,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 04:51:27,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2020-12-22 04:51:27,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575828944] [2020-12-22 04:51:27,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 04:51:27,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 04:51:27,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 04:51:27,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-22 04:51:27,081 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2020-12-22 04:51:27,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 04:51:27,326 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2020-12-22 04:51:27,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 04:51:27,327 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2020-12-22 04:51:27,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 04:51:27,328 INFO L225 Difference]: With dead ends: 13 [2020-12-22 04:51:27,328 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 04:51:27,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-12-22 04:51:27,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 04:51:27,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 04:51:27,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 04:51:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 04:51:27,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-12-22 04:51:27,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 04:51:27,334 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 04:51:27,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 04:51:27,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 04:51:27,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 04:51:27,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 04:51:27,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 04:51:27,629 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 04:51:27,629 INFO L189 CegarLoopUtils]: For program point L23(line 23) no Hoare annotation was computed. [2020-12-22 04:51:27,629 INFO L189 CegarLoopUtils]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-22 04:51:27,630 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 04:51:27,630 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 04:51:27,630 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 04:51:27,631 INFO L192 CegarLoopUtils]: At program point L28(lines 19 29) the Hoare annotation is: true [2020-12-22 04:51:27,631 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-12-22 04:51:27,632 INFO L185 CegarLoopUtils]: At program point L24-2(lines 24 26) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (< 0 ULTIMATE.start_main_~n~0) (<= .cse0 ULTIMATE.start_main_~n~0) (<= ULTIMATE.start_main_~n~0 .cse0) (< 0 (+ ULTIMATE.start_main_~k~0 1)))) [2020-12-22 04:51:27,633 INFO L189 CegarLoopUtils]: For program point L24-3(lines 24 26) no Hoare annotation was computed. [2020-12-22 04:51:27,633 INFO L189 CegarLoopUtils]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-22 04:51:27,633 INFO L189 CegarLoopUtils]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-12-22 04:51:27,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:51:27 BoogieIcfgContainer [2020-12-22 04:51:27,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 04:51:27,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 04:51:27,655 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 04:51:27,656 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 04:51:27,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:25" (3/4) ... [2020-12-22 04:51:27,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 04:51:27,675 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-22 04:51:27,675 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 04:51:27,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:51:27,676 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 04:51:27,739 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-zilu/benchmark34_conjunctive.i-witness.graphml [2020-12-22 04:51:27,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 04:51:27,741 INFO L168 Benchmark]: Toolchain (without parser) took 3091.21 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 140.0 MB in the beginning and 162.5 MB in the end (delta: -22.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,742 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 164.6 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:51:27,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.40 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 130.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 164.6 MB. Free memory was 130.2 MB in the beginning and 128.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,744 INFO L168 Benchmark]: Boogie Preprocessor took 23.16 ms. Allocated memory is still 164.6 MB. Free memory was 128.9 MB in the beginning and 127.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,745 INFO L168 Benchmark]: RCFGBuilder took 413.11 ms. Allocated memory is still 164.6 MB. Free memory was 127.7 MB in the beginning and 116.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,745 INFO L168 Benchmark]: TraceAbstraction took 2226.93 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 116.2 MB in the beginning and 165.1 MB in the end (delta: -48.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 04:51:27,746 INFO L168 Benchmark]: Witness Printer took 84.40 ms. Allocated memory is still 198.2 MB. Free memory was 165.1 MB in the beginning and 162.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 04:51:27,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 164.6 MB. Free memory is still 139.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 292.40 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 130.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.43 ms. Allocated memory is still 164.6 MB. Free memory was 130.2 MB in the beginning and 128.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.16 ms. Allocated memory is still 164.6 MB. Free memory was 128.9 MB in the beginning and 127.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 413.11 ms. Allocated memory is still 164.6 MB. Free memory was 127.7 MB in the beginning and 116.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2226.93 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 116.2 MB in the beginning and 165.1 MB in the end (delta: -48.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 84.40 ms. Allocated memory is still 198.2 MB. Free memory was 165.1 MB in the beginning and 162.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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: 24]: Loop Invariant Derived loop invariant: ((0 < n && k + j <= n) && n <= k + j) && 0 < k + 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 17 SDslu, 24 SDs, 0 SdLazy, 59 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 41 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1577 SizeOfPredicates, 9 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 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...