./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ --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 752da8674c09ab2aa763dfc92e2ae3d757cf5403d673d6c22b243cb3c0d91c44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:47:57,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:47:57,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:47:57,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:47:57,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:47:57,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:47:57,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:47:57,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:47:57,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:47:57,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:47:57,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:47:57,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:47:57,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:47:57,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:47:57,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:47:57,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:47:57,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:47:57,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:47:57,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:47:57,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:47:57,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:47:57,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:47:57,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:47:57,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:47:57,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:47:57,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:47:57,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:47:57,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:47:57,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:47:57,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:47:57,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:47:57,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:47:57,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:47:57,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:47:57,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:47:57,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:47:57,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:47:57,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:47:57,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:47:57,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:47:57,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:47:57,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:47:57,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:47:57,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:47:57,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:47:57,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:47:57,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:47:57,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:47:57,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:47:57,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:47:57,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:47:57,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:47:57,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:47:57,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:47:57,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:47:57,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:47:57,714 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:47:57,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:47:57,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:47:57,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:47:57,715 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:47:57,716 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:47:57,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:47:57,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:47:57,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:47:57,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:47:57,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:47:57,717 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:47:57,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:47:57,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:47:57,718 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_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 752da8674c09ab2aa763dfc92e2ae3d757cf5403d673d6c22b243cb3c0d91c44 [2021-11-23 01:47:57,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:47:57,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:47:57,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:47:57,992 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:47:57,993 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:47:57,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2021-11-23 01:47:58,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/data/c58936b2a/94ecf3fd3fab4b50abb380b916cf97af/FLAG604d6e3fe [2021-11-23 01:47:58,510 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:47:58,511 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2021-11-23 01:47:58,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/data/c58936b2a/94ecf3fd3fab4b50abb380b916cf97af/FLAG604d6e3fe [2021-11-23 01:47:58,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/data/c58936b2a/94ecf3fd3fab4b50abb380b916cf97af [2021-11-23 01:47:58,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:47:58,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:47:58,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:47:58,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:47:58,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:47:58,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:58" (1/1) ... [2021-11-23 01:47:58,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f9fd3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:58, skipping insertion in model container [2021-11-23 01:47:58,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:47:58" (1/1) ... [2021-11-23 01:47:58,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:47:58,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:47:59,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2021-11-23 01:47:59,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2021-11-23 01:47:59,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:47:59,131 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:47:59,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[557,570] [2021-11-23 01:47:59,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[613,626] [2021-11-23 01:47:59,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:47:59,175 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:47:59,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59 WrapperNode [2021-11-23 01:47:59,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:47:59,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:47:59,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:47:59,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:47:59,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,210 INFO L137 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2021-11-23 01:47:59,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:47:59,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:47:59,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:47:59,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:47:59,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:47:59,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:47:59,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:47:59,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:47:59,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:47:59,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:47:59,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:47:59,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:47:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:47:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:47:59,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:47:59,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:47:59,369 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:47:59,371 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:47:59,493 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:47:59,512 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:47:59,514 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:47:59,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:59 BoogieIcfgContainer [2021-11-23 01:47:59,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:47:59,518 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:47:59,518 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:47:59,528 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:47:59,529 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:59" (1/1) ... [2021-11-23 01:47:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:47:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-23 01:47:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-23 01:47:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:47:59,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:59,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:47:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:47:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:47:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:47:59,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:47:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:47:59,974 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:47:59,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:47:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:48:00,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:48:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:48:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-23 01:48:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-23 01:48:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:48:00,343 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:48:00,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:48:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:48:00,374 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:48:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:48:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:48:00,514 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:48:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:48:00,533 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-11-23 01:48:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:48:00 ImpRootNode [2021-11-23 01:48:00,560 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:48:00,561 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:48:00,561 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:48:00,561 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:48:00,562 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:47:59" (3/4) ... [2021-11-23 01:48:00,564 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:48:00,608 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:48:00,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:48:00,609 INFO L158 Benchmark]: Toolchain (without parser) took 1683.67ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 82.5MB in the beginning and 119.5MB in the end (delta: -37.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:00,610 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory was 67.0MB in the beginning and 67.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:00,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 89.5MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:48:00,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.34ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 87.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:48:00,612 INFO L158 Benchmark]: Boogie Preprocessor took 18.22ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 86.9MB in the end (delta: 978.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:00,613 INFO L158 Benchmark]: RCFGBuilder took 287.14ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 77.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:48:00,614 INFO L158 Benchmark]: CodeCheck took 1041.73ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 77.8MB in the beginning and 121.6MB in the end (delta: -43.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:48:00,615 INFO L158 Benchmark]: Witness Printer took 47.74ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 119.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:48:00,618 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 10 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5] unsigned char n = __VERIFIER_nondet_uchar(); [L6] COND FALSE !(n == 0) [L9] unsigned char v = 0; [L10] unsigned char s = 0; [L11] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i VAL [i=1, n=2, s=255, v=255] [L12] COND TRUE i < n [L13] v = __VERIFIER_nondet_uchar() [L14] s += v [L15] ++i VAL [i=2, n=2, s=254, v=255] [L12] COND FALSE !(i < n) VAL [i=2, n=2, s=254, v=255] [L17] COND TRUE s < v VAL [i=2, n=2, s=254, v=255] [L18] reach_error() VAL [i=2, n=2, s=254, v=255] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory was 67.0MB in the beginning and 67.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.70ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 89.5MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.34ms. Allocated memory is still 113.2MB. Free memory was 89.5MB in the beginning and 87.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.22ms. Allocated memory is still 113.2MB. Free memory was 87.8MB in the beginning and 86.9MB in the end (delta: 978.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.14ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 77.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1041.73ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 77.8MB in the beginning and 121.6MB in the end (delta: -43.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.74ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 119.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:48:00,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5afa437d-39a3-4e9a-85ff-e133452cb2b0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE