./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.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_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ......................................................................................................................................................................................................................................................................................................... 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 03:20:48,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:20:48,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:20:48,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:20:48,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:20:48,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:20:48,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:20:48,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:20:48,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:20:48,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:20:48,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:20:48,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:20:48,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:20:48,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:20:48,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:20:48,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:20:48,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:20:48,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:20:48,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:20:48,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:20:48,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:20:48,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:20:48,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:20:48,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:20:48,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:20:48,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:20:48,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:20:48,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:20:48,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:20:48,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:20:48,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:20:48,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:20:48,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:20:48,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:20:48,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:20:48,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:20:48,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:20:48,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:20:48,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:20:48,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:20:48,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:20:48,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 03:20:48,662 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:20:48,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:20:48,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 03:20:48,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 03:20:48,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:20:48,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:20:48,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:20:48,664 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:20:48,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:20:48,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:20:48,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:20:48,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:20:48,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:20:48,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:20:48,667 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:20:48,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:20:48,667 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:20:48,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:20:48,667 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 03:20:48,668 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 03:20:48,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:20:48,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:20:48,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 03:20:48,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:20:48,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:20:48,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:20:48,669 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 03:20:48,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:20:48,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:20:48,670 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_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak 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 -> Kojak 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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-11-20 03:20:48,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:20:48,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:20:48,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:20:48,863 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:20:48,863 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:20:48,864 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-11-20 03:20:48,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/data/1aaef606f/eee7e6fa0c4e4c98b6960850ba05f8ba/FLAG56e1c6640 [2019-11-20 03:20:49,332 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:20:49,334 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-11-20 03:20:49,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/data/1aaef606f/eee7e6fa0c4e4c98b6960850ba05f8ba/FLAG56e1c6640 [2019-11-20 03:20:49,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/data/1aaef606f/eee7e6fa0c4e4c98b6960850ba05f8ba [2019-11-20 03:20:49,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:20:49,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:20:49,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:20:49,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:20:49,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:20:49,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:20:49" (1/1) ... [2019-11-20 03:20:49,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce1e1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:49, skipping insertion in model container [2019-11-20 03:20:49,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:20:49" (1/1) ... [2019-11-20 03:20:49,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:20:49,798 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:20:50,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:20:50,046 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:20:50,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:20:50,084 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:20:50,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50 WrapperNode [2019-11-20 03:20:50,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:20:50,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:20:50,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:20:50,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:20:50,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:20:50,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:20:50,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:20:50,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:20:50,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:20:50,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:20:50,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:20:50,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:20:50,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:20:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2019-11-20 03:20:50,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:20:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:20:50,528 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:20:50,528 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 03:20:50,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:20:50 BoogieIcfgContainer [2019-11-20 03:20:50,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:20:50,530 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 03:20:50,530 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 03:20:50,540 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 03:20:50,542 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:20:50" (1/1) ... [2019-11-20 03:20:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:20:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2019-11-20 03:20:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2019-11-20 03:20:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:20:50,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:50,749 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 03:20:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2019-11-20 03:20:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-11-20 03:20:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 03:20:50,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:50,851 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 03:20:51,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:51,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-11-20 03:20:51,117 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-20 03:20:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 03:20:51,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:51,247 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 03:20:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2019-11-20 03:20:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-11-20 03:20:51,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 03:20:51,717 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-11-20 03:20:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-11-20 03:20:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 03:20:52,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-11-20 03:20:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-11-20 03:20:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 03:20:53,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 03:20:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-11-20 03:20:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-11-20 03:20:53,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 03:20:53,314 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2019-11-20 03:20:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-20 03:20:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 03:20:54,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2019-11-20 03:20:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-11-20 03:20:54,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 03:20:54,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:55,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:55,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 32 states and 36 transitions. [2019-11-20 03:20:55,510 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-11-20 03:20:55,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 03:20:55,511 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2019-11-20 03:20:56,475 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-20 03:20:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 03:20:56,476 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2019-11-20 03:20:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-11-20 03:20:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-20 03:20:57,577 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:20:58,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 44 states and 47 transitions. [2019-11-20 03:20:58,521 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-11-20 03:20:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-20 03:20:58,522 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 03:20:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:20:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-20 03:20:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 03:20:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2019-11-20 03:20:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-11-20 03:20:59,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:20:59,003 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2019-11-20 03:20:59,012 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2019-11-20 03:20:59,126 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 03:20:59,129 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-20 03:20:59,134 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2019-11-20 03:20:59,134 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2019-11-20 03:20:59,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 03:20:59 ImpRootNode [2019-11-20 03:20:59,135 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 03:20:59,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:20:59,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:20:59,136 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:20:59,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:20:50" (3/4) ... [2019-11-20 03:20:59,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:20:59,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 03:20:59,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 03:20:59,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_967fa231-37ac-47c1-b7ed-d28221345c9d/bin/ukojak/witness.graphml [2019-11-20 03:20:59,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:20:59,199 INFO L168 Benchmark]: Toolchain (without parser) took 9440.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 950.1 MB in the beginning and 976.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 174.6 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,200 INFO L168 Benchmark]: CDTParser took 0.20 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 03:20:59,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.88 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 03:20:59,201 INFO L168 Benchmark]: Boogie Preprocessor took 31.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,202 INFO L168 Benchmark]: RCFGBuilder took 371.81 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,202 INFO L168 Benchmark]: CodeCheck took 8605.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 126.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,203 INFO L168 Benchmark]: Witness Printer took 61.51 ms. Allocated memory is still 1.2 GB. Free memory was 986.1 MB in the beginning and 976.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-11-20 03:20:59,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Result: SAFE, OverallTime: 8.4s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27136 SDtfs, 46954 SDslu, 12288 SDs, 0 SdLazy, 241714 SolverSat, 66300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2147 GetRequests, 1854 SyntacticMatches, 139 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8117 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 17360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 237/450 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 327.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.88 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 31.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 371.81 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 8605.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 126.0 MB). Peak memory consumption was 187.8 MB. Max. memory is 11.5 GB. * Witness Printer took 61.51 ms. Allocated memory is still 1.2 GB. Free memory was 986.1 MB in the beginning and 976.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...