./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt7.c --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_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/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 38325d458ef53aa3f44f6d408761e6717afacc9b .................................................................................................................................................................................................................................................................... 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 11:29:49,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:29:49,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:29:49,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:29:49,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:29:49,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:29:49,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:29:49,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:29:49,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:29:49,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:29:49,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:29:49,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:29:49,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:29:49,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:29:49,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:29:49,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:29:49,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:29:49,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:29:49,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:29:49,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:29:49,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:29:49,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:29:49,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:29:49,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:29:49,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:29:49,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:29:49,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:29:49,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:29:49,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:29:49,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:29:49,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:29:49,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:29:49,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:29:49,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:29:49,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:29:49,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:29:49,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:29:49,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:29:49,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:29:49,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:29:49,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:29:49,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 11:29:49,423 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:29:49,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:29:49,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:29:49,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:29:49,424 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:29:49,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:29:49,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:29:49,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:29:49,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:29:49,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:29:49,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 11:29:49,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:29:49,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 11:29:49,428 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:29:49,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 11:29:49,428 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:29:49,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 11:29:49,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:29:49,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:29:49,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:29:49,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:29:49,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:29:49,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:29:49,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:29:49,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 11:29:49,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 11:29:49,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 11:29:49,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 11:29:49,431 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_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/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 -> 38325d458ef53aa3f44f6d408761e6717afacc9b [2019-11-20 11:29:49,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:29:49,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:29:49,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:29:49,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:29:49,583 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:29:49,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/sumt7.c [2019-11-20 11:29:49,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/data/694a7a524/8724aa4fbc05489ba23b63858258b4ff/FLAG6e9fd3a95 [2019-11-20 11:29:50,018 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:29:50,019 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/sv-benchmarks/c/loops-crafted-1/sumt7.c [2019-11-20 11:29:50,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/data/694a7a524/8724aa4fbc05489ba23b63858258b4ff/FLAG6e9fd3a95 [2019-11-20 11:29:50,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/data/694a7a524/8724aa4fbc05489ba23b63858258b4ff [2019-11-20 11:29:50,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:29:50,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 11:29:50,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:29:50,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:29:50,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:29:50,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31149b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50, skipping insertion in model container [2019-11-20 11:29:50,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,439 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:29:50,453 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:29:50,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:29:50,585 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:29:50,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:29:50,679 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:29:50,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50 WrapperNode [2019-11-20 11:29:50,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:29:50,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 11:29:50,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 11:29:50,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 11:29:50,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 11:29:50,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:29:50,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:29:50,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:29:50,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... [2019-11-20 11:29:50,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:29:50,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:29:50,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:29:50,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:29:50,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/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 11:29:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:29:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:29:51,097 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:29:51,097 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 11:29:51,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:51 BoogieIcfgContainer [2019-11-20 11:29:51,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:29:51,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:29:51,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:29:51,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:29:51,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:29:50" (1/3) ... [2019-11-20 11:29:51,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c20e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:51, skipping insertion in model container [2019-11-20 11:29:51,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:50" (2/3) ... [2019-11-20 11:29:51,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c20e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:51, skipping insertion in model container [2019-11-20 11:29:51,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:51" (3/3) ... [2019-11-20 11:29:51,117 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt7.c [2019-11-20 11:29:51,125 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:29:51,146 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 11:29:51,156 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 11:29:51,193 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:29:51,193 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 11:29:51,193 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:29:51,193 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:29:51,194 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:29:51,194 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:29:51,194 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:29:51,196 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:29:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-20 11:29:51,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 11:29:51,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:29:51,213 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 11:29:51,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 11:29:51,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:29:51,218 INFO L82 PathProgramCache]: Analyzing trace with hash 183347083, now seen corresponding path program 1 times [2019-11-20 11:29:51,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 11:29:51,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360127470] [2019-11-20 11:29:51,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 11:29:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:29:51,482 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 11:29:51,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360127470] [2019-11-20 11:29:51,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:29:51,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 11:29:51,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212408939] [2019-11-20 11:29:51,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 11:29:51,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 11:29:51,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 11:29:51,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 11:29:51,500 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2019-11-20 11:29:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:29:51,729 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2019-11-20 11:29:51,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 11:29:51,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-20 11:29:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:29:51,736 INFO L225 Difference]: With dead ends: 43 [2019-11-20 11:29:51,736 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 11:29:51,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 11:29:51,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 11:29:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 11:29:51,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 11:29:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 11:29:51,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-20 11:29:51,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:29:51,759 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 11:29:51,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 11:29:51,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 11:29:51,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 11:29:51,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2019-11-20 11:29:51,790 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 18 31) no Hoare annotation was computed. [2019-11-20 11:29:51,791 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 31) no Hoare annotation was computed. [2019-11-20 11:29:51,791 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 11:29:51,791 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 31) no Hoare annotation was computed. [2019-11-20 11:29:51,791 INFO L444 ceAbstractionStarter]: For program point L16-2(lines 16 34) no Hoare annotation was computed. [2019-11-20 11:29:51,791 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 11:29:51,792 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 34) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-20 11:29:51,792 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 11:29:51,792 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 11:29:51,792 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 31) no Hoare annotation was computed. [2019-11-20 11:29:51,793 INFO L444 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2019-11-20 11:29:51,793 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 31) no Hoare annotation was computed. [2019-11-20 11:29:51,793 INFO L440 ceAbstractionStarter]: At program point L35(lines 11 36) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-20 11:29:51,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:29:51 BoogieIcfgContainer [2019-11-20 11:29:51,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:29:51,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:29:51,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:29:51,808 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:29:51,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:51" (3/4) ... [2019-11-20 11:29:51,811 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 11:29:51,819 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 11:29:51,820 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 11:29:51,866 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e6b96c63-cc6b-47ee-9044-f14ebfd960e2/bin/uautomizer/witness.graphml [2019-11-20 11:29:51,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:29:51,868 INFO L168 Benchmark]: Toolchain (without parser) took 1441.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -114.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:29:51,868 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:29:51,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 11:29:51,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:29:51,870 INFO L168 Benchmark]: Boogie Preprocessor took 31.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:29:51,870 INFO L168 Benchmark]: RCFGBuilder took 352.90 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:29:51,871 INFO L168 Benchmark]: TraceAbstraction took 707.92 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-11-20 11:29:51,871 INFO L168 Benchmark]: Witness Printer took 57.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:29:51,874 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 352.90 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 707.92 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 57.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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: 3]: Loop Invariant Derived loop invariant: v1 + v2 + i + v3 + v4 + k + j <= l && l <= v1 + v2 + i + v3 + v4 + k + j - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: v1 + v2 + i + v3 + v4 + k + j <= l && l <= v1 + v2 + i + v3 + v4 + k + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 77 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 42 HoareAnnotationTreeSize, 2 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...