./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer --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 fb13e67548d34af589d64a91d36af5946c1dd198 ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:44:49,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:44:49,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:44:49,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:44:49,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:44:49,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:44:49,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:44:49,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:44:49,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:44:49,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:44:49,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:44:49,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:44:49,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:44:49,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:44:49,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:44:49,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:44:49,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:44:49,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:44:49,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:44:49,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:44:49,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:44:49,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:44:49,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:44:49,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:44:49,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:44:49,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:44:49,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:44:49,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:44:49,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:44:49,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:44:49,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:44:49,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:44:49,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:44:49,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:44:49,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:44:49,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:44:49,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:44:49,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:44:49,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:44:49,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:44:49,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:44:49,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 06:44:49,493 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:44:49,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:44:49,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:44:49,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:44:49,495 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:44:49,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:44:49,495 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:44:49,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:44:49,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:44:49,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:44:49,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:44:49,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:44:49,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:44:49,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:44:49,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:44:49,497 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:44:49,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:44:49,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:44:49,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:44:49,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:44:49,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 06:44:49,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 06:44:49,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:44:49,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:44:49,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:44:49,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:44:49,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:44:49,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:44:49,499 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer 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 -> fb13e67548d34af589d64a91d36af5946c1dd198 [2019-11-20 06:44:49,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:44:49,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:44:49,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:44:49,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:44:49,647 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:44:49,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2019-11-20 06:44:49,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/data/d1cf2ae63/e89ba4851a9c412e92b40fc3a3fba62d/FLAG0111a1e23 [2019-11-20 06:44:50,043 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:44:50,045 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2019-11-20 06:44:50,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/data/d1cf2ae63/e89ba4851a9c412e92b40fc3a3fba62d/FLAG0111a1e23 [2019-11-20 06:44:50,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/data/d1cf2ae63/e89ba4851a9c412e92b40fc3a3fba62d [2019-11-20 06:44:50,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:44:50,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:44:50,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:44:50,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:44:50,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:44:50,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f29b82b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50, skipping insertion in model container [2019-11-20 06:44:50,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,436 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:44:50,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:44:50,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:44:50,645 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:44:50,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:44:50,735 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:44:50,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50 WrapperNode [2019-11-20 06:44:50,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:44:50,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:44:50,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:44:50,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:44:50,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:44:50,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:44:50,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:44:50,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:44:50,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... [2019-11-20 06:44:50,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:44:50,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:44:50,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:44:50,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:44:50,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/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 [2019-11-20 06:44:50,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:44:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:44:50,990 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:44:50,990 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 06:44:50,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:44:50 BoogieIcfgContainer [2019-11-20 06:44:50,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:44:50,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 06:44:50,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 06:44:50,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 06:44:50,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:44:50" (1/3) ... [2019-11-20 06:44:50,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ea408b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:44:50, skipping insertion in model container [2019-11-20 06:44:50,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:44:50" (2/3) ... [2019-11-20 06:44:50,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ea408b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:44:50, skipping insertion in model container [2019-11-20 06:44:50,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:44:50" (3/3) ... [2019-11-20 06:44:50,998 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2019-11-20 06:44:51,007 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 06:44:51,013 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 06:44:51,023 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 06:44:51,044 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 06:44:51,045 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 06:44:51,045 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 06:44:51,045 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:44:51,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:44:51,045 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 06:44:51,045 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:44:51,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 06:44:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-20 06:44:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 06:44:51,063 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:44:51,063 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 06:44:51,064 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:44:51,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:44:51,068 INFO L82 PathProgramCache]: Analyzing trace with hash 922199370, now seen corresponding path program 1 times [2019-11-20 06:44:51,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:44:51,077 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278438148] [2019-11-20 06:44:51,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:44:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:44:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:44:51,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278438148] [2019-11-20 06:44:51,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:44:51,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 06:44:51,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310382004] [2019-11-20 06:44:51,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 06:44:51,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:44:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 06:44:51,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:44:51,196 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-20 06:44:51,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:44:51,210 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-11-20 06:44:51,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 06:44:51,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-20 06:44:51,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:44:51,218 INFO L225 Difference]: With dead ends: 19 [2019-11-20 06:44:51,218 INFO L226 Difference]: Without dead ends: 7 [2019-11-20 06:44:51,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 06:44:51,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-11-20 06:44:51,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 06:44:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 06:44:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-11-20 06:44:51,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2019-11-20 06:44:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:44:51,248 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-11-20 06:44:51,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 06:44:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-11-20 06:44:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 06:44:51,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:44:51,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 06:44:51,249 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:44:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:44:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash 922080206, now seen corresponding path program 1 times [2019-11-20 06:44:51,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:44:51,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649370492] [2019-11-20 06:44:51,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:44:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:44:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:44:51,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649370492] [2019-11-20 06:44:51,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:44:51,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 06:44:51,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116539883] [2019-11-20 06:44:51,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 06:44:51,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:44:51,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 06:44:51,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 06:44:51,285 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2019-11-20 06:44:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:44:51,309 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-20 06:44:51,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 06:44:51,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 06:44:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:44:51,310 INFO L225 Difference]: With dead ends: 12 [2019-11-20 06:44:51,310 INFO L226 Difference]: Without dead ends: 8 [2019-11-20 06:44:51,311 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 [2019-11-20 06:44:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-20 06:44:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-20 06:44:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-20 06:44:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-20 06:44:51,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-11-20 06:44:51,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:44:51,313 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-20 06:44:51,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 06:44:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-20 06:44:51,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 06:44:51,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:44:51,314 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:44:51,314 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:44:51,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:44:51,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1478619311, now seen corresponding path program 1 times [2019-11-20 06:44:51,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:44:51,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080481962] [2019-11-20 06:44:51,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:44:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:44:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:44:51,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080481962] [2019-11-20 06:44:51,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829697348] [2019-11-20 06:44:51,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/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 [2019-11-20 06:44:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:44:51,583 WARN L253 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-20 06:44:51,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:44:51,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:44:51,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:44:51,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:44:51,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 06:44:51,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351772622] [2019-11-20 06:44:51,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-20 06:44:51,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:44:51,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-20 06:44:51,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-11-20 06:44:51,783 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-11-20 06:44:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:44:51,884 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-11-20 06:44:51,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:44:51,885 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-20 06:44:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:44:51,885 INFO L225 Difference]: With dead ends: 13 [2019-11-20 06:44:51,886 INFO L226 Difference]: Without dead ends: 9 [2019-11-20 06:44:51,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-20 06:44:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-20 06:44:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-20 06:44:51,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 06:44:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-20 06:44:51,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-20 06:44:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:44:51,889 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-20 06:44:51,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-20 06:44:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-20 06:44:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 06:44:51,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 06:44:51,890 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-11-20 06:44:52,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:44:52,091 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 06:44:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:44:52,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1409106990, now seen corresponding path program 2 times [2019-11-20 06:44:52,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:44:52,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489698100] [2019-11-20 06:44:52,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:44:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:44:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 06:44:52,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489698100] [2019-11-20 06:44:52,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428349863] [2019-11-20 06:44:52,220 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/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 [2019-11-20 06:44:52,252 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 06:44:52,252 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 06:44:52,253 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 06:44:52,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:44:52,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 06:44:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:44:52,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 06:44:52,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2019-11-20 06:44:52,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283755683] [2019-11-20 06:44:52,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 06:44:52,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:44:52,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 06:44:52,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-20 06:44:52,436 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 12 states. [2019-11-20 06:44:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:44:52,757 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-20 06:44:52,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 06:44:52,757 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 8 [2019-11-20 06:44:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 06:44:52,758 INFO L225 Difference]: With dead ends: 12 [2019-11-20 06:44:52,758 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 06:44:52,759 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-11-20 06:44:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 06:44:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 06:44:52,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 06:44:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 06:44:52,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-20 06:44:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 06:44:52,760 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:44:52,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 06:44:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:44:52,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:44:52,963 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 06:44:52,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 06:44:53,015 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 06:44:53,016 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 06:44:53,016 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 06:44:53,016 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 06:44:53,016 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 06:44:53,016 INFO L447 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2019-11-20 06:44:53,016 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-20 06:44:53,017 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~lo~0 (* 2 ULTIMATE.start_main_~mid~0)))) (and (<= ULTIMATE.start_main_~hi~0 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~0) (<= ULTIMATE.start_main_~lo~0 ULTIMATE.start_main_~hi~0))) [2019-11-20 06:44:53,017 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-20 06:44:53,017 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 06:44:53,017 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-20 06:44:53,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:44:53 BoogieIcfgContainer [2019-11-20 06:44:53,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 06:44:53,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:44:53,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:44:53,032 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:44:53,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:44:50" (3/4) ... [2019-11-20 06:44:53,037 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:44:53,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 06:44:53,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 06:44:53,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d65c58f7-b288-4f33-916f-36cd3238ca9b/bin/uautomizer/witness.graphml [2019-11-20 06:44:53,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:44:53,102 INFO L168 Benchmark]: Toolchain (without parser) took 2678.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.1 MB in the beginning and 949.3 MB in the end (delta: 822.9 kB). Peak memory consumption was 113.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:44:53,102 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:44:53,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:44:53,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.77 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. [2019-11-20 06:44:53,104 INFO L168 Benchmark]: Boogie Preprocessor took 21.42 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 06:44:53,104 INFO L168 Benchmark]: RCFGBuilder took 201.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:44:53,105 INFO L168 Benchmark]: TraceAbstraction took 2038.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 949.3 MB in the end (delta: 139.3 MB). Peak memory consumption was 139.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:44:53,105 INFO L168 Benchmark]: Witness Printer took 67.63 ms. Allocated memory is still 1.1 GB. Free memory is still 949.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:44:53,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -158.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.77 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. * Boogie Preprocessor took 21.42 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.50 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2038.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 949.3 MB in the end (delta: 139.3 MB). Peak memory consumption was 139.3 MB. Max. memory is 11.5 GB. * Witness Printer took 67.63 ms. Allocated memory is still 1.1 GB. Free memory is still 949.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (hi <= lo + 2 * mid && lo + 2 * mid <= hi) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 17 SDslu, 23 SDs, 0 SdLazy, 89 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 86 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1979 SizeOfPredicates, 10 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...