./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40.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_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/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 e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 .................................................................................................................................................................................................................................................. 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 16:20:04,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:20:04,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:20:05,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:20:05,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:20:05,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:20:05,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:20:05,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:20:05,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:20:05,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:20:05,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:20:05,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:20:05,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:20:05,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:20:05,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:20:05,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:20:05,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:20:05,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:20:05,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:20:05,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:20:05,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:20:05,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:20:05,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:20:05,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:20:05,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:20:05,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:20:05,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:20:05,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:20:05,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:20:05,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:20:05,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:20:05,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:20:05,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:20:05,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:20:05,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:20:05,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:20:05,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:20:05,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:20:05,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:20:05,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:20:05,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:20:05,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:20:05,088 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:20:05,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:20:05,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:20:05,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:20:05,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:20:05,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:20:05,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:20:05,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:20:05,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:20:05,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:20:05,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:20:05,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:20:05,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:20:05,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:20:05,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:20:05,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:20:05,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:20:05,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:20:05,095 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:20:05,095 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:20:05,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:20:05,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:20:05,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:20:05,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:20:05,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:20:05,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:20:05,097 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:20:05,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:20:05,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:20:05,100 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_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 [2020-12-01 16:20:05,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:20:05,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:20:05,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:20:05,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:20:05,449 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:20:05,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/../../sv-benchmarks/c/loops/nec40.c [2020-12-01 16:20:05,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/data/f08e73d78/14db617f78d148a988a17137f55858bc/FLAG7ebd05bc4 [2020-12-01 16:20:06,050 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:20:06,052 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/sv-benchmarks/c/loops/nec40.c [2020-12-01 16:20:06,062 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/data/f08e73d78/14db617f78d148a988a17137f55858bc/FLAG7ebd05bc4 [2020-12-01 16:20:06,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/data/f08e73d78/14db617f78d148a988a17137f55858bc [2020-12-01 16:20:06,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:20:06,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:20:06,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:20:06,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:20:06,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:20:06,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7773f857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06, skipping insertion in model container [2020-12-01 16:20:06,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:20:06,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:20:06,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:20:06,646 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:20:06,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:20:06,679 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:20:06,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06 WrapperNode [2020-12-01 16:20:06,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:20:06,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:20:06,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:20:06,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:20:06,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:20:06,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:20:06,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:20:06,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:20:06,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... [2020-12-01 16:20:06,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:20:06,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:20:06,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:20:06,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:20:06,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:20:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/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 16:20:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:20:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:20:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:20:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:20:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:20:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:20:07,176 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:20:07,177 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 16:20:07,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:20:07 BoogieIcfgContainer [2020-12-01 16:20:07,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:20:07,180 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:20:07,180 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:20:07,191 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:20:07,191 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:20:07" (1/1) ... [2020-12-01 16:20:07,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:20:07,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:07,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 16:20:07,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-12-01 16:20:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:20:07,267 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:07,458 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 16:20:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-01 16:20:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 16:20:07,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:20:07,471 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:07,600 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 16:20:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-01 16:20:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-01 16:20:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:20:07,674 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:20:08,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2020-12-01 16:20:08,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-01 16:20:08,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:20:08,106 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-12-01 16:20:08,113 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:20:08,163 INFO L569 CodeCheckObserver]: Invariant with dag size 14 [2020-12-01 16:20:08,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 16:20:08,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 16:20:08,175 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:20:08,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:20:08 ImpRootNode [2020-12-01 16:20:08,176 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:20:08,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:20:08,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:20:08,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:20:08,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:20:07" (3/4) ... [2020-12-01 16:20:08,181 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:20:08,190 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 16:20:08,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:20:08,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:20:08,191 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:20:08,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_638e63eb-2b98-48bf-91d5-6fc9cd1b5a03/bin/ukojak/witness.graphml [2020-12-01 16:20:08,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:20:08,233 INFO L168 Benchmark]: Toolchain (without parser) took 1811.66 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 48.0 MB in the beginning and 50.1 MB in the end (delta: -2.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:08,234 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 48.4 MB in the beginning and 48.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:20:08,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.09 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 47.7 MB in the beginning and 70.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:08,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:08,236 INFO L168 Benchmark]: Boogie Preprocessor took 23.42 ms. Allocated memory is still 94.4 MB. Free memory was 68.4 MB in the beginning and 67.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:20:08,236 INFO L168 Benchmark]: RCFGBuilder took 438.90 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 51.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:08,237 INFO L168 Benchmark]: CodeCheck took 996.02 ms. Allocated memory is still 94.4 MB. Free memory was 51.6 MB in the beginning and 52.8 MB in the end (delta: -1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:20:08,238 INFO L168 Benchmark]: Witness Printer took 54.78 ms. Allocated memory is still 94.4 MB. Free memory was 52.8 MB in the beginning and 50.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:08,241 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 26 SDslu, 8 SDs, 0 SdLazy, 88 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 483 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 - 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: 20]: Loop Invariant [2020-12-01 16:20:08,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-12-01 16:20:08,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (!(x == y) && i == 0) && unknown-#memory_int-unknown[x][i + x] == 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 77.6 MB. Free memory was 48.4 MB in the beginning and 48.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.09 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 47.7 MB in the beginning and 70.0 MB in the end (delta: -22.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 68.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.42 ms. Allocated memory is still 94.4 MB. Free memory was 68.4 MB in the beginning and 67.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 438.90 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 51.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 996.02 ms. Allocated memory is still 94.4 MB. Free memory was 51.6 MB in the beginning and 52.8 MB in the end (delta: -1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 54.78 ms. Allocated memory is still 94.4 MB. Free memory was 52.8 MB in the beginning and 50.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int RESULT: Ultimate proved your program to be correct! Received shutdown request...