./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/jain_4-2.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/bitvector/jain_4-2.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 403f476a24ae810402b4ab8eaf46c79b7e5bf003 ............................................................................................................................................................................................................................................................................................................. 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 15:38:16,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:38:16,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:38:16,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:38:16,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:38:16,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:38:16,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:38:16,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:38:16,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:38:16,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:38:16,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:38:16,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:38:16,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:38:16,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:38:16,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:38:16,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:38:16,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:38:16,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:38:16,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:38:16,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:38:16,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:38:16,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:38:16,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:38:16,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:38:16,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:38:16,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:38:16,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:38:16,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:38:16,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:38:16,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:38:16,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:38:16,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:38:16,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:38:16,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:38:16,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:38:16,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:38:16,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:38:16,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:38:16,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:38:16,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:38:16,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:38:16,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:38:16,497 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:38:16,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:38:16,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:38:16,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:38:16,502 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:38:16,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:38:16,503 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:38:16,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:38:16,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:38:16,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:38:16,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:38:16,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:38:16,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:38:16,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:38:16,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:38:16,506 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:38:16,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:38:16,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:38:16,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:38:16,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:38:16,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:38:16,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:38:16,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:38:16,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:38:16,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:38:16,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:38:16,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:38:16,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:38:16,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:38:16,510 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 -> 403f476a24ae810402b4ab8eaf46c79b7e5bf003 [2019-11-28 15:38:16,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:38:16,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:38:16,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:38:16,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:38:16,821 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:38:16,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_4-2.c [2019-11-28 15:38:16,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a258062/db2d2e107a6c4a468ff9eaa20a8f79aa/FLAG086985230 [2019-11-28 15:38:17,306 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:38:17,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_4-2.c [2019-11-28 15:38:17,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a258062/db2d2e107a6c4a468ff9eaa20a8f79aa/FLAG086985230 [2019-11-28 15:38:17,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a258062/db2d2e107a6c4a468ff9eaa20a8f79aa [2019-11-28 15:38:17,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:38:17,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:38:17,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:17,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:38:17,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:38:17,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:17,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17, skipping insertion in model container [2019-11-28 15:38:17,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:17,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:38:17,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:38:17,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:17,927 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:38:17,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:17,950 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:38:17,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17 WrapperNode [2019-11-28 15:38:17,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:17,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:17,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:38:17,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:38:17,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:17,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:18,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:38:18,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:38:18,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:38:18,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (1/1) ... [2019-11-28 15:38:18,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:38:18,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:38:18,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:38:18,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:38:18,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (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 15:38:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:38:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:38:18,253 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:38:18,253 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 15:38:18,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:18 BoogieIcfgContainer [2019-11-28 15:38:18,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:38:18,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:38:18,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:38:18,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:38:18,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:38:17" (1/3) ... [2019-11-28 15:38:18,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:18, skipping insertion in model container [2019-11-28 15:38:18,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:17" (2/3) ... [2019-11-28 15:38:18,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:18, skipping insertion in model container [2019-11-28 15:38:18,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:18" (3/3) ... [2019-11-28 15:38:18,262 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_4-2.c [2019-11-28 15:38:18,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:38:18,278 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:38:18,290 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:38:18,315 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:38:18,315 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:38:18,315 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:38:18,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:38:18,316 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:38:18,316 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:38:18,316 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:38:18,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:38:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 15:38:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 15:38:18,337 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:38:18,338 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 15:38:18,338 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:38:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:38:18,343 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 15:38:18,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:38:18,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208789541] [2019-11-28 15:38:18,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:38:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:38:18,601 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 15:38:18,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208789541] [2019-11-28 15:38:18,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:38:18,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 15:38:18,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434066614] [2019-11-28 15:38:18,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 15:38:18,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:38:18,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 15:38:18,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:38:18,635 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-28 15:38:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:38:18,741 INFO L93 Difference]: Finished difference Result 15 states and 23 transitions. [2019-11-28 15:38:18,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:38:18,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 15:38:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:38:18,754 INFO L225 Difference]: With dead ends: 15 [2019-11-28 15:38:18,754 INFO L226 Difference]: Without dead ends: 7 [2019-11-28 15:38:18,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 15:38:18,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-28 15:38:18,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-28 15:38:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 15:38:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-28 15:38:18,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-11-28 15:38:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:38:18,806 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-28 15:38:18,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 15:38:18,806 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-28 15:38:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 15:38:18,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:38:18,808 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-11-28 15:38:18,810 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:38:18,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:38:18,811 INFO L82 PathProgramCache]: Analyzing trace with hash 925914308, now seen corresponding path program 1 times [2019-11-28 15:38:18,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:38:18,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237477342] [2019-11-28 15:38:18,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:38:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:38:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:19,005 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237477342] [2019-11-28 15:38:19,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134477526] [2019-11-28 15:38:19,006 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 15:38:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:38:19,048 WARN L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-28 15:38:19,053 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:38:19,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 15:38:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:19,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 15:38:19,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2019-11-28 15:38:19,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4610479] [2019-11-28 15:38:19,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 15:38:19,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 15:38:19,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 15:38:19,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-28 15:38:19,263 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 9 states. [2019-11-28 15:38:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:38:19,292 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-11-28 15:38:19,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 15:38:19,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 6 [2019-11-28 15:38:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:38:19,294 INFO L225 Difference]: With dead ends: 7 [2019-11-28 15:38:19,294 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 15:38:19,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-11-28 15:38:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 15:38:19,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 15:38:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 15:38:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 15:38:19,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-28 15:38:19,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:38:19,297 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 15:38:19,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 15:38:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 15:38:19,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 15:38:19,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:38:19,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 15:38:19,584 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 15:38:19,584 INFO L246 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-28 15:38:19,585 INFO L242 CegarLoopResult]: At program point L5-2(lines 4 25) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0) (= ULTIMATE.start_main_~z~0 0)) (and (= (mod (* ULTIMATE.start_main_~x~0 3) (- 4)) 0) (= (mod (* ULTIMATE.start_main_~z~0 7) (- 8)) 0) (= (mod (* ULTIMATE.start_main_~y~0 3) (- 4)) 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-11-28 15:38:19,585 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 15:38:19,585 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 15:38:19,585 INFO L242 CegarLoopResult]: At program point L26(lines 10 27) the Hoare annotation is: false [2019-11-28 15:38:19,585 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-28 15:38:19,585 INFO L246 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-11-28 15:38:19,585 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-28 15:38:19,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:38:19 BoogieIcfgContainer [2019-11-28 15:38:19,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:38:19,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:38:19,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:38:19,619 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:38:19,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:18" (3/4) ... [2019-11-28 15:38:19,623 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 15:38:19,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 15:38:19,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 15:38:19,728 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:38:19,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:38:19,730 INFO L168 Benchmark]: Toolchain (without parser) took 2023.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -76.1 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:19,731 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:19,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.42 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:19,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:19,733 INFO L168 Benchmark]: Boogie Preprocessor took 15.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:19,733 INFO L168 Benchmark]: RCFGBuilder took 202.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:19,742 INFO L168 Benchmark]: TraceAbstraction took 1361.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:19,742 INFO L168 Benchmark]: Witness Printer took 111.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:19,748 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.42 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 83.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.16 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 202.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1361.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * Witness Printer took 111.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: ((x == 0 && y == 0) && z == 0) || (((x * 3 % -4 == 0 && z * 7 % -8 == 0) && y * 3 % -4 == 0) && 1 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 5 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 37 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 579 SizeOfPredicates, 7 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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...