./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/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 676e29c704408ba5cb62ef3917e5c4d703cda2e4 ........................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 13:03:47,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 13:03:47,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 13:03:47,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 13:03:47,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 13:03:47,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 13:03:47,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 13:03:47,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 13:03:47,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 13:03:47,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 13:03:47,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 13:03:47,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 13:03:47,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 13:03:47,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 13:03:47,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 13:03:47,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 13:03:47,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 13:03:47,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 13:03:47,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 13:03:47,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 13:03:47,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 13:03:47,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 13:03:47,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 13:03:47,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 13:03:47,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 13:03:47,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 13:03:47,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 13:03:47,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 13:03:47,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 13:03:47,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 13:03:47,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 13:03:47,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 13:03:47,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 13:03:47,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 13:03:47,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 13:03:47,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 13:03:47,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 13:03:47,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 13:03:47,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 13:03:47,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 13:03:47,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 13:03:47,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 13:03:47,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 13:03:47,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 13:03:47,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 13:03:47,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 13:03:47,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 13:03:47,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 13:03:47,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 13:03:47,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 13:03:47,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 13:03:47,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 13:03:47,505 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 13:03:47,505 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 13:03:47,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 13:03:47,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 13:03:47,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 13:03:47,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 13:03:47,507 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_5a0a5840-1d95-47ad-b13b-56626949c377/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 -> 676e29c704408ba5cb62ef3917e5c4d703cda2e4 [2019-12-01 13:03:47,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 13:03:47,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 13:03:47,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 13:03:47,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 13:03:47,617 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 13:03:47,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-12-01 13:03:47,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/data/ff4c8f580/d8088e483a204ba5beba9b5628964006/FLAG3c07bc042 [2019-12-01 13:03:47,983 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 13:03:47,984 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2019-12-01 13:03:47,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/data/ff4c8f580/d8088e483a204ba5beba9b5628964006/FLAG3c07bc042 [2019-12-01 13:03:48,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/data/ff4c8f580/d8088e483a204ba5beba9b5628964006 [2019-12-01 13:03:48,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 13:03:48,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 13:03:48,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 13:03:48,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 13:03:48,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 13:03:48,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f224933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48, skipping insertion in model container [2019-12-01 13:03:48,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 13:03:48,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 13:03:48,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 13:03:48,553 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 13:03:48,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 13:03:48,603 INFO L208 MainTranslator]: Completed translation [2019-12-01 13:03:48,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48 WrapperNode [2019-12-01 13:03:48,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 13:03:48,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 13:03:48,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 13:03:48,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 13:03:48,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 13:03:48,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 13:03:48,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 13:03:48,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 13:03:48,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 13:03:48,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 13:03:48,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 13:03:48,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 13:03:48,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:03:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/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 [2019-12-01 13:03:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 13:03:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-12-01 13:03:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-12-01 13:03:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 13:03:48,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 13:03:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-01 13:03:48,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 13:03:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 13:03:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2019-12-01 13:03:48,679 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2019-12-01 13:03:48,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 13:03:48,809 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 13:03:48,809 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 13:03:48,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:03:48 BoogieIcfgContainer [2019-12-01 13:03:48,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 13:03:48,810 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 13:03:48,811 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 13:03:48,817 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 13:03:48,817 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:03:48" (1/1) ... [2019-12-01 13:03:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 13:03:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2019-12-01 13:03:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-12-01 13:03:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 13:03:48,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:48,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2019-12-01 13:03:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-12-01 13:03:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 13:03:49,016 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 30 transitions. [2019-12-01 13:03:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-12-01 13:03:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 13:03:49,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 40 transitions. [2019-12-01 13:03:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2019-12-01 13:03:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-01 13:03:49,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 51 transitions. [2019-12-01 13:03:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2019-12-01 13:03:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-01 13:03:50,608 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:51,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 63 transitions. [2019-12-01 13:03:51,478 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2019-12-01 13:03:51,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-01 13:03:51,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 76 transitions. [2019-12-01 13:03:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2019-12-01 13:03:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-01 13:03:52,528 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:53,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:53,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 90 transitions. [2019-12-01 13:03:53,763 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2019-12-01 13:03:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-01 13:03:53,765 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 53 states and 105 transitions. [2019-12-01 13:03:55,139 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 105 transitions. [2019-12-01 13:03:55,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-12-01 13:03:55,141 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 58 states and 121 transitions. [2019-12-01 13:03:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 121 transitions. [2019-12-01 13:03:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-01 13:03:56,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:03:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:03:58,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:03:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 63 states and 128 transitions. [2019-12-01 13:03:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 128 transitions. [2019-12-01 13:03:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-12-01 13:03:58,479 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 13:03:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 13:04:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 206 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 13:04:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 13:04:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 61 states and 79 transitions. [2019-12-01 13:04:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2019-12-01 13:04:07,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-01 13:04:07,869 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2019-12-01 13:04:07,878 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-12-01 13:04:08,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 01:04:08 ImpRootNode [2019-12-01 13:04:08,133 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 13:04:08,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 13:04:08,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 13:04:08,134 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 13:04:08,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:03:48" (3/4) ... [2019-12-01 13:04:08,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-01 13:04:08,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2019-12-01 13:04:08,145 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2019-12-01 13:04:08,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-01 13:04:08,150 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-01 13:04:08,150 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-01 13:04:08,150 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-01 13:04:08,184 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5a0a5840-1d95-47ad-b13b-56626949c377/bin/ukojak/witness.graphml [2019-12-01 13:04:08,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 13:04:08,185 INFO L168 Benchmark]: Toolchain (without parser) took 19762.38 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 315.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -127.2 MB). Peak memory consumption was 187.9 MB. Max. memory is 11.5 GB. [2019-12-01 13:04:08,186 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 13:04:08,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-01 13:04:08,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.61 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. [2019-12-01 13:04:08,186 INFO L168 Benchmark]: Boogie Preprocessor took 12.23 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. [2019-12-01 13:04:08,187 INFO L168 Benchmark]: RCFGBuilder took 172.22 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: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-01 13:04:08,187 INFO L168 Benchmark]: CodeCheck took 19322.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 204.5 MB. Max. memory is 11.5 GB. [2019-12-01 13:04:08,187 INFO L168 Benchmark]: Witness Printer took 50.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-12-01 13:04:08,189 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 3 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 19.0s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17408 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 84430 SolverSat, 33422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4014 GetRequests, 3498 SyntacticMatches, 216 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42302 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 84920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 206/935 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: 16]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.61 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 12.23 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 172.22 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: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * CodeCheck took 19322.84 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 204.5 MB. Max. memory is 11.5 GB. * Witness Printer took 50.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...