./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/sumt8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5c9f46ceef17a40f4c8c296250db6bb3816cee9 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:10:04,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:10:04,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:10:04,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:10:04,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:10:04,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:10:04,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:10:04,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:10:04,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:10:04,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:10:04,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:10:04,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:10:04,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:10:04,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:10:04,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:10:04,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:10:04,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:10:04,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:10:04,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:10:04,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:10:04,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:10:04,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:10:04,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:10:04,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:10:04,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:10:04,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:10:04,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:10:04,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:10:04,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:10:04,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:10:04,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:10:04,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:10:04,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:10:04,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:10:04,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:10:04,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:10:04,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:10:04,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:10:04,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:10:04,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:10:04,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:10:04,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:10:04,115 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:10:04,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:10:04,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:10:04,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:10:04,117 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:10:04,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:10:04,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:10:04,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:10:04,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:10:04,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:10:04,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:10:04,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:10:04,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:10:04,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:10:04,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:10:04,120 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:10:04,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:10:04,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:10:04,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:10:04,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:10:04,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:10:04,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:04,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:10:04,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:10:04,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:10:04,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:10:04,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:10:04,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:10:04,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:10:04,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5c9f46ceef17a40f4c8c296250db6bb3816cee9 [2019-11-28 17:10:04,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:10:04,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:10:04,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:10:04,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:10:04,431 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:10:04,432 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt8.c [2019-11-28 17:10:04,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2fbd50/7cd960ed238149718e12500b09187ce2/FLAG2f32237e9 [2019-11-28 17:10:04,939 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:10:04,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt8.c [2019-11-28 17:10:04,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2fbd50/7cd960ed238149718e12500b09187ce2/FLAG2f32237e9 [2019-11-28 17:10:05,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fd2fbd50/7cd960ed238149718e12500b09187ce2 [2019-11-28 17:10:05,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:10:05,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:10:05,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:05,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:10:05,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:10:05,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f4e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05, skipping insertion in model container [2019-11-28 17:10:05,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:10:05,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:10:05,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:05,575 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:10:05,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:05,606 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:10:05,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05 WrapperNode [2019-11-28 17:10:05,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:05,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:05,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:10:05,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:10:05,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:05,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:10:05,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:10:05,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:10:05,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:10:05,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:10:05,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:10:05,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:10:05,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:05,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:10:05,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:10:06,036 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:10:06,036 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:10:06,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06 BoogieIcfgContainer [2019-11-28 17:10:06,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:10:06,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:10:06,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:10:06,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:10:06,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:10:05" (1/3) ... [2019-11-28 17:10:06,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47057497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:06, skipping insertion in model container [2019-11-28 17:10:06,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05" (2/3) ... [2019-11-28 17:10:06,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47057497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:06, skipping insertion in model container [2019-11-28 17:10:06,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06" (3/3) ... [2019-11-28 17:10:06,045 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2019-11-28 17:10:06,052 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:10:06,058 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:10:06,070 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:10:06,093 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:10:06,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:10:06,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:10:06,093 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:10:06,093 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:10:06,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:10:06,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:10:06,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:10:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-11-28 17:10:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:10:06,110 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:06,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:06,111 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:06,116 INFO L82 PathProgramCache]: Analyzing trace with hash 183352048, now seen corresponding path program 1 times [2019-11-28 17:10:06,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:06,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763886165] [2019-11-28 17:10:06,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:06,548 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2019-11-28 17:10:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:06,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763886165] [2019-11-28 17:10:06,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:10:06,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:10:06,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073980522] [2019-11-28 17:10:06,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:10:06,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:06,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:10:06,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:06,675 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2019-11-28 17:10:06,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:06,820 INFO L93 Difference]: Finished difference Result 43 states and 65 transitions. [2019-11-28 17:10:06,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:10:06,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-28 17:10:06,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:06,835 INFO L225 Difference]: With dead ends: 43 [2019-11-28 17:10:06,835 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 17:10:06,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 17:10:06,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 17:10:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 17:10:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-11-28 17:10:06,874 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 8 [2019-11-28 17:10:06,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:06,875 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-28 17:10:06,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:10:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2019-11-28 17:10:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 17:10:06,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:06,876 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:06,876 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:06,877 INFO L82 PathProgramCache]: Analyzing trace with hash 486052837, now seen corresponding path program 1 times [2019-11-28 17:10:06,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:06,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358221974] [2019-11-28 17:10:06,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:07,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358221974] [2019-11-28 17:10:07,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463812043] [2019-11-28 17:10:07,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:07,111 WARN L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-28 17:10:07,117 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:10:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:07,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:10:07,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2019-11-28 17:10:07,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041072018] [2019-11-28 17:10:07,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 17:10:07,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:07,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 17:10:07,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:10:07,308 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand 9 states. [2019-11-28 17:10:07,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:07,531 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-11-28 17:10:07,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:10:07,532 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-11-28 17:10:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:07,533 INFO L225 Difference]: With dead ends: 40 [2019-11-28 17:10:07,533 INFO L226 Difference]: Without dead ends: 28 [2019-11-28 17:10:07,534 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:10:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-28 17:10:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-11-28 17:10:07,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 17:10:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2019-11-28 17:10:07,541 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 12 [2019-11-28 17:10:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:07,541 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-11-28 17:10:07,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 17:10:07,541 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2019-11-28 17:10:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 17:10:07,542 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:07,542 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:07,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:07,748 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:07,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:07,749 INFO L82 PathProgramCache]: Analyzing trace with hash -434311308, now seen corresponding path program 1 times [2019-11-28 17:10:07,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:07,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771808516] [2019-11-28 17:10:07,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:10:08,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771808516] [2019-11-28 17:10:08,017 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773211501] [2019-11-28 17:10:08,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:08,061 WARN L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-28 17:10:08,065 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:10:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:08,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:10:08,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-11-28 17:10:08,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480859627] [2019-11-28 17:10:08,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 17:10:08,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:08,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 17:10:08,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-28 17:10:08,228 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 10 states. [2019-11-28 17:10:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:08,494 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-28 17:10:08,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:10:08,496 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-11-28 17:10:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:08,496 INFO L225 Difference]: With dead ends: 28 [2019-11-28 17:10:08,496 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:10:08,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-11-28 17:10:08,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:10:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:10:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:10:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:10:08,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-28 17:10:08,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:08,501 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:10:08,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 17:10:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:10:08,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:10:08,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:08,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:10:08,863 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point L28(lines 28 33) no Hoare annotation was computed. [2019-11-28 17:10:08,866 INFO L246 CegarLoopResult]: For program point L24(lines 24 33) no Hoare annotation was computed. [2019-11-28 17:10:08,867 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:10:08,867 INFO L246 CegarLoopResult]: For program point L20(lines 20 33) no Hoare annotation was computed. [2019-11-28 17:10:08,867 INFO L246 CegarLoopResult]: For program point L16-2(lines 16 36) no Hoare annotation was computed. [2019-11-28 17:10:08,867 INFO L242 CegarLoopResult]: At program point L37(lines 11 38) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~v5~0))) (and (<= 0 .cse0) (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 0)))) [2019-11-28 17:10:08,868 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:10:08,869 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 36) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~v5~0))) (let ((.cse1 (<= .cse0 ULTIMATE.start_main_~l~0))) (or (and (<= ULTIMATE.start_main_~l~0 .cse0) .cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (and (= ULTIMATE.start_main_~v4~0 0) (<= 0 .cse0) (= ULTIMATE.start_main_~v1~0 0) .cse1 (= ULTIMATE.start_main_~v2~0 0) (<= ULTIMATE.start_main_~l~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~v3~0 0) (= ULTIMATE.start_main_~j~0 0))))) [2019-11-28 17:10:08,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:10:08,869 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 17:10:08,869 INFO L246 CegarLoopResult]: For program point L30(lines 30 33) no Hoare annotation was computed. [2019-11-28 17:10:08,869 INFO L246 CegarLoopResult]: For program point L30-2(lines 18 33) no Hoare annotation was computed. [2019-11-28 17:10:08,870 INFO L246 CegarLoopResult]: For program point L26(lines 26 33) no Hoare annotation was computed. [2019-11-28 17:10:08,870 INFO L246 CegarLoopResult]: For program point L22(lines 22 33) no Hoare annotation was computed. [2019-11-28 17:10:08,870 INFO L246 CegarLoopResult]: For program point L18(lines 18 33) no Hoare annotation was computed. [2019-11-28 17:10:08,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:10:08 BoogieIcfgContainer [2019-11-28 17:10:08,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:10:08,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:10:08,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:10:08,911 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:10:08,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06" (3/4) ... [2019-11-28 17:10:08,915 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:10:08,929 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 17:10:08,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:10:09,035 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:10:09,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:10:09,038 INFO L168 Benchmark]: Toolchain (without parser) took 3712.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 922.1 MB in the end (delta: 39.6 MB). Peak memory consumption was 181.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:09,038 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:10:09,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.87 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:09,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:09,040 INFO L168 Benchmark]: Boogie Preprocessor took 37.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:10:09,041 INFO L168 Benchmark]: RCFGBuilder took 287.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:09,044 INFO L168 Benchmark]: TraceAbstraction took 2871.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.1 MB in the end (delta: 190.2 MB). Peak memory consumption was 190.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:09,045 INFO L168 Benchmark]: Witness Printer took 125.86 ms. Allocated memory is still 1.2 GB. Free memory is still 922.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:10:09,049 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.87 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 105.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -181.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 287.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2871.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.1 MB in the end (delta: 190.2 MB). Peak memory consumption was 190.2 MB. Max. memory is 11.5 GB. * Witness Printer took 125.86 ms. Allocated memory is still 1.2 GB. Free memory is still 922.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(0 == cond) || ((0 <= v1 + v2 + i + v3 + v4 + k + j + v5 && v1 + v2 + i + v3 + v4 + k + j + v5 <= l) && l <= 0) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((l <= v1 + v2 + i + v3 + v4 + k + j + v5 && v1 + v2 + i + v3 + v4 + k + j + v5 <= l) && 1 == cond) || (((((((((v4 == 0 && 0 <= v1 + v2 + i + v3 + v4 + k + j + v5) && v1 == 0) && v1 + v2 + i + v3 + v4 + k + j + v5 <= l) && v2 == 0) && l <= 0) && k == 0) && i == 0) && v3 == 0) && j == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 43 SDtfs, 61 SDslu, 67 SDs, 0 SdLazy, 230 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 105 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 16413 SizeOfPredicates, 22 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 5/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...