./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47fcb479d933beca049827d7d80a7b2ad5309684 ................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:30:45,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:30:45,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:30:45,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:30:45,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:30:45,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:30:45,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:30:45,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:30:45,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:30:45,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:30:45,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:30:45,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:30:45,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:30:45,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:30:45,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:30:45,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:30:45,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:30:45,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:30:45,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:30:45,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:30:45,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:30:45,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:30:45,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:30:45,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:30:45,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:30:45,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:30:45,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:30:45,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:30:45,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:30:45,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:30:45,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:30:45,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:30:45,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:30:45,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:30:45,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:30:45,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:30:45,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:30:45,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:30:45,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:30:45,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:30:45,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:30:45,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:30:45,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:30:45,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:30:45,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:30:45,565 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:30:45,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:30:45,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:30:45,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:30:45,567 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:30:45,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:30:45,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:30:45,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:30:45,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:30:45,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:30:45,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:30:45,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:30:45,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:30:45,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:30:45,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:30:45,572 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:30:45,573 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:30:45,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:30:45,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:30:45,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:30:45,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:30:45,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:30:45,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:30:45,575 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:30:45,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:30:45,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:30:45,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fcb479d933beca049827d7d80a7b2ad5309684 [2020-12-01 16:30:45,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:30:45,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:30:45,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:30:45,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:30:45,973 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:30:45,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/../../sv-benchmarks/c/recursive/recHanoi02-2.c [2020-12-01 16:30:46,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/data/4b727c8df/e4615af2d77e49f788fc54e00dc8822e/FLAG82cd73a26 [2020-12-01 16:30:46,691 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:30:46,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/sv-benchmarks/c/recursive/recHanoi02-2.c [2020-12-01 16:30:46,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/data/4b727c8df/e4615af2d77e49f788fc54e00dc8822e/FLAG82cd73a26 [2020-12-01 16:30:47,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/data/4b727c8df/e4615af2d77e49f788fc54e00dc8822e [2020-12-01 16:30:47,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:30:47,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:30:47,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:47,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:30:47,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:30:47,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e419e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47, skipping insertion in model container [2020-12-01 16:30:47,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:30:47,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:30:47,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:47,384 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:30:47,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:47,433 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:30:47,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47 WrapperNode [2020-12-01 16:30:47,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:47,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:47,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:30:47,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:30:47,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:47,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:30:47,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:30:47,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:30:47,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:30:47,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:30:47,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:30:47,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:30:47,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/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 [2020-12-01 16:30:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-12-01 16:30:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-12-01 16:30:47,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:30:47,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:30:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:30:47,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:30:47,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:30:47,961 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:30:47,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:47 BoogieIcfgContainer [2020-12-01 16:30:47,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:30:47,966 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:30:47,966 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:30:47,983 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:30:47,983 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:30:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-01 16:30:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-01 16:30:48,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:30:48,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:30:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-12-01 16:30:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 16:30:48,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:30:48,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:30:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:49,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 30 transitions. [2020-12-01 16:30:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2020-12-01 16:30:49,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:30:49,222 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 16:30:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:49,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-01 16:30:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-01 16:30:49,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:30:49,768 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-12-01 16:30:49,786 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:30:49,835 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:30:49,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:30:49 ImpRootNode [2020-12-01 16:30:49,845 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:30:49,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:30:49,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:30:49,847 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:30:49,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:47" (3/4) ... [2020-12-01 16:30:49,853 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:30:49,864 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2020-12-01 16:30:49,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 16:30:49,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:30:49,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:30:49,875 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:30:49,971 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5117bf7a-fff3-41af-91af-68eab968879c/bin/ukojak/witness.graphml [2020-12-01 16:30:49,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:30:49,982 INFO L168 Benchmark]: Toolchain (without parser) took 2907.89 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 79.9 MB in the beginning and 109.3 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:49,986 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 117.4 MB. Free memory is still 95.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:49,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.23 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 93.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:49,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:49,990 INFO L168 Benchmark]: Boogie Preprocessor took 54.75 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.0 MB in the end (delta: 913.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:49,991 INFO L168 Benchmark]: RCFGBuilder took 413.35 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 77.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:49,992 INFO L168 Benchmark]: CodeCheck took 1879.33 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 77.9 MB in the beginning and 111.4 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:49,993 INFO L168 Benchmark]: Witness Printer took 130.52 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:50,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 16 SDslu, 24 SDs, 0 SdLazy, 144 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 326 GetRequests, 290 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 1449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 11/18 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: 3]: 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: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 117.4 MB. Free memory is still 95.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.23 ms. Allocated memory is still 117.4 MB. Free memory was 79.8 MB in the beginning and 93.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.75 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.0 MB in the end (delta: 913.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 413.35 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 77.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1879.33 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 77.9 MB in the beginning and 111.4 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 130.52 ms. Allocated memory is still 142.6 MB. Free memory was 111.4 MB in the beginning and 109.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...