./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --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/loop-crafted/simple_array_index_value_4.i -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 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:05:46,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:05:46,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:05:46,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:05:46,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:05:46,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:05:46,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:05:46,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:05:46,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:05:46,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:05:46,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:05:46,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:05:46,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:05:46,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:05:46,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:05:46,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:05:46,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:05:46,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:05:46,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:05:46,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:05:46,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:05:46,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:05:46,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:05:46,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:05:46,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:05:46,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:05:46,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:05:46,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:05:46,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:05:46,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:05:46,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:05:46,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:05:46,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:05:46,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:05:46,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:05:46,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:05:46,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:05:46,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:05:46,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:05:46,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:05:46,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:05:46,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:05:46,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:05:46,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:05:46,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:05:46,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:05:46,434 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:05:46,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:05:46,435 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:05:46,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:05:46,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:05:46,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:05:46,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:05:46,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:05:46,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:05:46,437 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:05:46,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:05:46,438 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:05:46,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:05:46,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:05:46,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:05:46,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:05:46,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:05:46,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:05:46,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:05:46,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:05:46,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:05:46,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:05:46,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:05:46,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:05:46,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:05:46,441 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 -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2019-11-28 17:05:46,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:05:46,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:05:46,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:05:46,739 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:05:46,740 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:05:46,741 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2019-11-28 17:05:46,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66f17058/bfd70cb194b741fcaa0f02f44692c90a/FLAGa66d266d4 [2019-11-28 17:05:47,296 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:05:47,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2019-11-28 17:05:47,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66f17058/bfd70cb194b741fcaa0f02f44692c90a/FLAGa66d266d4 [2019-11-28 17:05:47,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66f17058/bfd70cb194b741fcaa0f02f44692c90a [2019-11-28 17:05:47,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:05:47,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:05:47,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:05:47,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:05:47,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:05:47,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:47,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9736e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47, skipping insertion in model container [2019-11-28 17:05:47,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:47,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:05:47,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:05:47,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:05:47,949 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:05:47,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:05:47,993 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:05:47,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47 WrapperNode [2019-11-28 17:05:47,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:05:47,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:05:47,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:05:47,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:05:48,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:05:48,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:05:48,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:05:48,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:05:48,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (1/1) ... [2019-11-28 17:05:48,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:05:48,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:05:48,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:05:48,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:05:48,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (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 17:05:48,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:05:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:05:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 17:05:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 17:05:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 17:05:48,395 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:05:48,395 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-28 17:05:48,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:48 BoogieIcfgContainer [2019-11-28 17:05:48,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:05:48,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:05:48,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:05:48,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:05:48,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:05:47" (1/3) ... [2019-11-28 17:05:48,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e58a1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:48, skipping insertion in model container [2019-11-28 17:05:48,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:47" (2/3) ... [2019-11-28 17:05:48,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e58a1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:48, skipping insertion in model container [2019-11-28 17:05:48,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:48" (3/3) ... [2019-11-28 17:05:48,427 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2019-11-28 17:05:48,452 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:05:48,459 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 17:05:48,472 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 17:05:48,501 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:05:48,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:05:48,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:05:48,502 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:05:48,502 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:05:48,503 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:05:48,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:05:48,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:05:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-11-28 17:05:48,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 17:05:48,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:48,525 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 17:05:48,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:48,530 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-28 17:05:48,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:48,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275443763] [2019-11-28 17:05:48,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:48,776 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 17:05:48,778 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275443763] [2019-11-28 17:05:48,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:05:48,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 17:05:48,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213085741] [2019-11-28 17:05:48,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 17:05:48,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:48,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 17:05:48,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 17:05:48,810 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-11-28 17:05:48,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:48,948 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2019-11-28 17:05:48,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:05:48,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 17:05:48,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:48,962 INFO L225 Difference]: With dead ends: 45 [2019-11-28 17:05:48,962 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 17:05:48,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:05:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 17:05:49,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2019-11-28 17:05:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 17:05:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-28 17:05:49,010 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2019-11-28 17:05:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:49,011 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-28 17:05:49,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 17:05:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-28 17:05:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 17:05:49,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:49,012 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:05:49,012 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1809251313, now seen corresponding path program 1 times [2019-11-28 17:05:49,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:49,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915862865] [2019-11-28 17:05:49,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:49,075 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 17:05:49,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915862865] [2019-11-28 17:05:49,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:05:49,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 17:05:49,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822828492] [2019-11-28 17:05:49,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 17:05:49,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 17:05:49,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 17:05:49,079 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-28 17:05:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:49,089 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2019-11-28 17:05:49,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 17:05:49,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-28 17:05:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:49,091 INFO L225 Difference]: With dead ends: 22 [2019-11-28 17:05:49,091 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 17:05:49,092 INFO L630 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 [2019-11-28 17:05:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 17:05:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-11-28 17:05:49,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 17:05:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-11-28 17:05:49,097 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2019-11-28 17:05:49,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:49,097 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-11-28 17:05:49,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 17:05:49,098 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-11-28 17:05:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:05:49,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:49,098 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-28 17:05:49,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:49,099 INFO L82 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2019-11-28 17:05:49,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:49,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471231105] [2019-11-28 17:05:49,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:49,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471231105] [2019-11-28 17:05:49,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472902985] [2019-11-28 17:05:49,298 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 17:05:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:49,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 17:05:49,448 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:49,586 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:49,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:05:49,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-28 17:05:49,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721243094] [2019-11-28 17:05:49,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 17:05:49,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:05:49,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 17:05:49,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-28 17:05:49,619 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 10 states. [2019-11-28 17:05:49,861 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2019-11-28 17:05:54,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:05:54,457 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2019-11-28 17:05:54,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-28 17:05:54,458 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2019-11-28 17:05:54,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:05:54,459 INFO L225 Difference]: With dead ends: 29 [2019-11-28 17:05:54,459 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 17:05:54,460 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2019-11-28 17:05:54,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 17:05:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 11. [2019-11-28 17:05:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 17:05:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-28 17:05:54,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-11-28 17:05:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:05:54,465 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-28 17:05:54,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 17:05:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-28 17:05:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 17:05:54,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:05:54,466 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:05:54,669 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:05:54,670 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:05:54,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:05:54,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1195876265, now seen corresponding path program 1 times [2019-11-28 17:05:54,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:05:54,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703048815] [2019-11-28 17:05:54,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:05:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:55,177 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 37 [2019-11-28 17:05:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:05:55,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703048815] [2019-11-28 17:05:55,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607945527] [2019-11-28 17:05:55,234 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 17:05:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:05:55,342 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-28 17:05:55,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:05:59,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:05:59,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:01,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:03,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:03,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:03,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:04,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:04,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:04,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:04,038 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 17:06:09,557 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-28 17:06:09,558 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 17:06:09,559 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-28 17:06:09,560 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 17:06:09,562 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 17:06:09,563 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 17:06:09,563 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:302, output treesize:3 [2019-11-28 17:06:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:06:09,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-28 17:06:09,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2019-11-28 17:06:09,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084930837] [2019-11-28 17:06:09,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 17:06:09,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:06:09,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 17:06:09,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=49, Unknown=2, NotChecked=0, Total=72 [2019-11-28 17:06:09,580 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-11-28 17:06:11,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:06:11,235 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-28 17:06:11,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 17:06:11,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-11-28 17:06:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:06:11,239 INFO L225 Difference]: With dead ends: 13 [2019-11-28 17:06:11,239 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:06:11,240 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=54, Invalid=100, Unknown=2, NotChecked=0, Total=156 [2019-11-28 17:06:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:06:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:06:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:06:11,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:06:11,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-28 17:06:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:06:11,242 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:06:11,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 17:06:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:06:11,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:06:11,443 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:06:11,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:06:13,392 WARN L192 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-11-28 17:06:14,150 WARN L192 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2019-11-28 17:06:16,273 WARN L192 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 63 DAG size of output: 17 [2019-11-28 17:06:16,277 INFO L242 CegarLoopResult]: At program point L31-2(lines 31 37) the Hoare annotation is: (or (let ((.cse0 (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296)) (.cse1 (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (and (< .cse0 .cse1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (= (mod (select .cse2 (+ (* .cse0 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296) (mod (select .cse2 (+ |ULTIMATE.start_main_~#array~0.offset| (* .cse1 4))) 4294967296))) (< .cse1 100000))) (and (< (mod ULTIMATE.start_main_~index1~0 4294967296) 100000) (= ULTIMATE.start_main_~loop_entered~0 0) (<= ULTIMATE.start_main_~index2~0 (+ (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)) 99999)))) [2019-11-28 17:06:16,278 INFO L246 CegarLoopResult]: For program point L31-3(lines 20 47) no Hoare annotation was computed. [2019-11-28 17:06:16,281 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-28 17:06:16,281 INFO L246 CegarLoopResult]: For program point L19(lines 19 47) no Hoare annotation was computed. [2019-11-28 17:06:16,281 INFO L246 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2019-11-28 17:06:16,282 INFO L242 CegarLoopResult]: At program point L11-2(lines 9 15) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~index2~0 4294967296)))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ .cse0 ULTIMATE.start_main_~index1~0 1) (+ (* 4294967296 (div ULTIMATE.start_main_~index1~0 4294967296)) ULTIMATE.start_main_~index2~0)) (<= ULTIMATE.start_main_~index2~0 (+ .cse0 99999)))) [2019-11-28 17:06:16,282 INFO L246 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed. [2019-11-28 17:06:16,282 INFO L242 CegarLoopResult]: At program point L11-5(lines 9 15) the Hoare annotation is: (let ((.cse0 (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) .cse0) (< .cse0 100000))) [2019-11-28 17:06:16,282 INFO L242 CegarLoopResult]: At program point L40-2(lines 40 44) the Hoare annotation is: (or (let ((.cse0 (mod ULTIMATE.start_main_~index2~0 4294967296))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< .cse0 100000) (< (mod ULTIMATE.start_main_~index1~0 4294967296) .cse0))) (let ((.cse1 (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296)) (.cse2 (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (and (< .cse1 .cse2) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (= (mod (select .cse3 (+ (* .cse1 4) |ULTIMATE.start_main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ |ULTIMATE.start_main_~#array~0.offset| (* .cse2 4))) 4294967296))) (< .cse2 100000)))) [2019-11-28 17:06:16,282 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:06:16,282 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:06:16,285 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:06:16,285 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-28 17:06:16,285 INFO L246 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2019-11-28 17:06:16,286 INFO L246 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2019-11-28 17:06:16,286 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:06:16,286 INFO L246 CegarLoopResult]: For program point L39(lines 39 45) no Hoare annotation was computed. [2019-11-28 17:06:16,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:06:16 BoogieIcfgContainer [2019-11-28 17:06:16,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:06:16,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:06:16,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:06:16,311 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:06:16,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:48" (3/4) ... [2019-11-28 17:06:16,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:06:16,326 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-28 17:06:16,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 17:06:16,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:06:16,378 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:06:16,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:06:16,380 INFO L168 Benchmark]: Toolchain (without parser) took 28675.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 961.7 MB in the beginning and 903.4 MB in the end (delta: 58.3 MB). Peak memory consumption was 212.4 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:16,381 INFO L168 Benchmark]: CDTParser took 0.76 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 17:06:16,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.38 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 17:06:16,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -200.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:16,383 INFO L168 Benchmark]: Boogie Preprocessor took 22.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:16,383 INFO L168 Benchmark]: RCFGBuilder took 284.04 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:16,384 INFO L168 Benchmark]: TraceAbstraction took 27903.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.4 MB in the end (delta: 221.2 MB). Peak memory consumption was 221.2 MB. Max. memory is 11.5 GB. [2019-11-28 17:06:16,385 INFO L168 Benchmark]: Witness Printer took 68.38 ms. Allocated memory is still 1.2 GB. Free memory is still 903.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 17:06:16,388 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 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 288.38 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 95.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -200.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 284.04 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27903.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.4 MB in the end (delta: 221.2 MB). Peak memory consumption was 221.2 MB. Max. memory is 11.5 GB. * Witness Printer took 68.38 ms. Allocated memory is still 1.2 GB. Free memory is still 903.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (!(0 == cond) && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) && (index2 + 1) % 4294967296 < 100000 - InvariantResult [Line: 40]: Loop Invariant [2019-11-28 17:06:16,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(0 == cond) && index2 % 4294967296 < 100000) && index1 % 4294967296 < index2 % 4294967296) || ((((index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296 && 1 == cond) && unknown-#memory_int-unknown[array][(index1 + 4294967295) % 4294967296 * 4 + array] % 4294967296 == unknown-#memory_int-unknown[array][array + (index2 + 1) % 4294967296 * 4] % 4294967296) && (index2 + 1) % 4294967296 < 100000) - InvariantResult [Line: 31]: Loop Invariant [2019-11-28 17:06:16,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-28 17:06:16,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296 && 1 == cond) && unknown-#memory_int-unknown[array][(index1 + 4294967295) % 4294967296 * 4 + array] % 4294967296 == unknown-#memory_int-unknown[array][array + (index2 + 1) % 4294967296 * 4] % 4294967296) && (index2 + 1) % 4294967296 < 100000) || ((index1 % 4294967296 < 100000 && loop_entered == 0) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (1 == cond && 4294967296 * (index2 / 4294967296) + index1 + 1 <= 4294967296 * (index1 / 4294967296) + index2) && index2 <= 4294967296 * (index2 / 4294967296) + 99999 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Result: SAFE, OverallTime: 22.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, HoareTripleCheckerStatistics: 48 SDtfs, 60 SDslu, 55 SDs, 0 SdLazy, 78 SolverSat, 28 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 195 HoareAnnotationTreeSize, 4 FomulaSimplifications, 449 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 290 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 6709 SizeOfPredicates, 13 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 3/6 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...