./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/for_bounded_loop1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/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 108d15887a93306fe736fe6c2e7f14ff3dbea99b ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:33:25,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:25,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:25,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:25,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:25,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:25,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:25,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:25,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:25,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:25,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:25,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:25,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:25,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:25,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:25,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:25,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:25,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:25,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:25,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:25,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:25,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:25,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:25,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:25,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:25,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:25,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:25,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:25,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:25,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:25,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:25,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:25,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:25,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:25,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:25,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:25,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:25,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:25,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:25,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:25,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:25,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:33:25,474 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:25,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:25,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:25,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:25,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:25,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:25,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:25,477 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:33:25,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:25,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:33:25,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:25,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:25,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:25,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:25,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:33:25,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:25,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:25,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:25,480 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:25,480 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:25,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:25,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:25,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:25,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:25,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:25,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:25,482 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:25,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:25,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:25,483 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_80b76146-fe0e-45e4-8e69-be6f06b8e574/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 108d15887a93306fe736fe6c2e7f14ff3dbea99b [2020-11-28 04:33:25,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:25,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:25,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:25,795 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:25,796 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:25,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/../../sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 04:33:25,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/data/e598ea8a1/089ed08a4cb843c4ac031f598b370611/FLAGf8a093d37 [2020-11-28 04:33:26,401 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:26,401 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/sv-benchmarks/c/loops/for_bounded_loop1.c [2020-11-28 04:33:26,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/data/e598ea8a1/089ed08a4cb843c4ac031f598b370611/FLAGf8a093d37 [2020-11-28 04:33:26,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/data/e598ea8a1/089ed08a4cb843c4ac031f598b370611 [2020-11-28 04:33:26,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:26,848 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:26,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:26,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:26,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:26,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:26" (1/1) ... [2020-11-28 04:33:26,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349406c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:26, skipping insertion in model container [2020-11-28 04:33:26,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:26" (1/1) ... [2020-11-28 04:33:26,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:26,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:27,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:27,071 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:27,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:27,101 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:27,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27 WrapperNode [2020-11-28 04:33:27,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:27,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:27,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:27,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:27,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:27,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:27,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:27,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:27,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:27,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:27,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:27,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:27,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/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 [2020-11-28 04:33:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:33:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:33:27,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:27,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:27,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:33:27,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:33:27,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:27,511 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:33:27,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:27 BoogieIcfgContainer [2020-11-28 04:33:27,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:27,515 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:27,515 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:27,525 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:27,525 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:27" (1/1) ... [2020-11-28 04:33:27,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-28 04:33:27,571 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-28 04:33:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:27,572 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-11-28 04:33:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-28 04:33:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:27,802 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 31 transitions. [2020-11-28 04:33:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2020-11-28 04:33:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:33:28,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:28,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 22 states and 30 transitions. [2020-11-28 04:33:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-11-28 04:33:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:33:28,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:28,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:28,684 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2020-11-28 04:33:28,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:28 ImpRootNode [2020-11-28 04:33:28,732 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:28,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:28,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:28,733 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:28,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:27" (3/4) ... [2020-11-28 04:33:28,735 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:33:28,791 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80b76146-fe0e-45e4-8e69-be6f06b8e574/bin/ukojak/witness.graphml [2020-11-28 04:33:28,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:28,793 INFO L168 Benchmark]: Toolchain (without parser) took 1943.40 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 73.2 MB in the beginning and 89.7 MB in the end (delta: -16.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,794 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 100.7 MB. Free memory is still 59.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.23 ms. Allocated memory is still 100.7 MB. Free memory was 73.0 MB in the beginning and 77.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.76 ms. Allocated memory is still 100.7 MB. Free memory was 77.7 MB in the beginning and 76.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,800 INFO L168 Benchmark]: Boogie Preprocessor took 18.35 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 75.4 MB in the end (delta: 966.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,802 INFO L168 Benchmark]: RCFGBuilder took 350.84 ms. Allocated memory is still 100.7 MB. Free memory was 75.1 MB in the beginning and 61.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,802 INFO L168 Benchmark]: CodeCheck took 1217.42 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 61.3 MB in the beginning and 92.3 MB in the end (delta: -31.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:28,803 INFO L168 Benchmark]: Witness Printer took 58.46 ms. Allocated memory is still 127.9 MB. Free memory was 92.3 MB in the beginning and 89.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:28,806 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, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84 SDtfs, 12 SDslu, 4 SDs, 0 SdLazy, 146 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 202 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 980 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int i=0, x=0, y=0; [L20] int n=__VERIFIER_nondet_int(); [L21] COND FALSE !(!(n>0)) [L22] i=0 [L22] COND TRUE i