./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss1f.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_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ss1f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/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 738f92d53407194cd8d2cf30d6b3861192fe553b ............................................................................................................................................................................................................................................................................................. 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 [2020-11-30 03:46:59,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:46:59,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:46:59,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:46:59,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:46:59,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:46:59,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:46:59,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:46:59,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:47:00,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:47:00,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:47:00,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:47:00,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:47:00,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:47:00,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:47:00,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:47:00,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:47:00,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:47:00,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:47:00,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:47:00,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:47:00,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:47:00,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:47:00,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:47:00,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:47:00,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:47:00,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:47:00,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:47:00,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:47:00,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:47:00,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:47:00,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:47:00,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:47:00,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:47:00,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:47:00,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:47:00,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:47:00,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:47:00,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:47:00,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:47:00,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:47:00,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 03:47:00,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:47:00,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:47:00,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:47:00,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 03:47:00,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 03:47:00,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 03:47:00,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:47:00,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:47:00,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:47:00,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:47:00,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:47:00,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:47:00,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:47:00,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:47:00,070 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:47:00,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:47:00,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:47:00,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:47:00,071 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 03:47:00,072 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 03:47:00,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:47:00,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:47:00,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 03:47:00,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:47:00,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:47:00,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:47:00,073 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 03:47:00,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:47:00,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:47:00,074 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_213a2e7f-24d7-42db-b8a5-fb38701e2592/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 738f92d53407194cd8d2cf30d6b3861192fe553b [2020-11-30 03:47:00,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:47:00,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:47:00,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:47:00,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:47:00,404 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:47:00,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/../../sv-benchmarks/c/array-fpi/ss1f.c [2020-11-30 03:47:00,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/data/0a2470519/4d0bb90031c8404c8007b23aaca71560/FLAGa597d9535 [2020-11-30 03:47:00,980 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:47:00,980 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/sv-benchmarks/c/array-fpi/ss1f.c [2020-11-30 03:47:00,987 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/data/0a2470519/4d0bb90031c8404c8007b23aaca71560/FLAGa597d9535 [2020-11-30 03:47:01,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/data/0a2470519/4d0bb90031c8404c8007b23aaca71560 [2020-11-30 03:47:01,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:47:01,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:47:01,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:47:01,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:47:01,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:47:01,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388c97b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01, skipping insertion in model container [2020-11-30 03:47:01,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:47:01,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:47:01,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:47:01,622 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:47:01,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:47:01,663 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:47:01,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01 WrapperNode [2020-11-30 03:47:01,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:47:01,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:47:01,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:47:01,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:47:01,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:47:01,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:47:01,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:47:01,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:47:01,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... [2020-11-30 03:47:01,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:47:01,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:47:01,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:47:01,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:47:01,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:47:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/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 [2020-11-30 03:47:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:47:01,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:47:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:47:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 03:47:01,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:47:01,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:47:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:47:01,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:47:02,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:47:02,543 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 03:47:02,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:47:02 BoogieIcfgContainer [2020-11-30 03:47:02,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:47:02,546 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 03:47:02,546 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 03:47:02,559 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 03:47:02,559 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:47:02" (1/1) ... [2020-11-30 03:47:02,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:47:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:47:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2020-11-30 03:47:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2020-11-30 03:47:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:47:02,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:47:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:47:02,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:47:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:47:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:47:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:47:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-30 03:47:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-30 03:47:02,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:47:02,909 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:47:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:47:03,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 03:47:03,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:47:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-11-30 03:47:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-11-30 03:47:03,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:47:03,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:47:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:47:03,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:47:03,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:47:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 03:47:03,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:47:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-30 03:47:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-30 03:47:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:47:03,370 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:47:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:47:03,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:47:03,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:47:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 03:47:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 03:47:03,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-30 03:47:03,536 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-30 03:47:03,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:47:03,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 03:47:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:47:03,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:47:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:47:03,644 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:47:03,689 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-30 03:47:03,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 03:47:03 ImpRootNode [2020-11-30 03:47:03,754 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 03:47:03,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:47:03,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:47:03,759 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:47:03,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:47:02" (3/4) ... [2020-11-30 03:47:03,762 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 03:47:03,852 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_213a2e7f-24d7-42db-b8a5-fb38701e2592/bin/ukojak/witness.graphml [2020-11-30 03:47:03,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:47:03,860 INFO L168 Benchmark]: Toolchain (without parser) took 2488.06 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 82.9 MB in the beginning and 99.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,861 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 109.1 MB. Free memory was 68.0 MB in the beginning and 68.0 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:47:03,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.25 ms. Allocated memory is still 109.1 MB. Free memory was 82.7 MB in the beginning and 85.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.68 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 83.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,862 INFO L168 Benchmark]: Boogie Preprocessor took 27.70 ms. Allocated memory is still 109.1 MB. Free memory was 83.5 MB in the beginning and 82.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,863 INFO L168 Benchmark]: RCFGBuilder took 811.59 ms. Allocated memory is still 109.1 MB. Free memory was 82.1 MB in the beginning and 57.0 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,863 INFO L168 Benchmark]: CodeCheck took 1207.44 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 56.8 MB in the beginning and 101.6 MB in the end (delta: -44.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:47:03,864 INFO L168 Benchmark]: Witness Printer took 94.19 ms. Allocated memory is still 138.4 MB. Free memory was 101.6 MB in the beginning and 99.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:47:03,867 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 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 96 SDtfs, 38 SDslu, 0 SDs, 0 SdLazy, 204 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 328 GetRequests, 305 SyntacticMatches, 13 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 722 SizeOfPredicates, 4 NumberOfNonLiveVariables, 299 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 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: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i