./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ --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 f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 17:26:48,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:26:48,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:26:48,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:26:48,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:26:48,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:26:48,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:26:48,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:26:48,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:26:48,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:26:48,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:26:48,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:26:48,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:26:48,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:26:48,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:26:48,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:26:48,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:26:48,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:26:48,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:26:48,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:26:48,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:26:48,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:26:48,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:26:48,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:26:48,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:26:48,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:26:48,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:26:48,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:26:48,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:26:48,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:26:48,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:26:48,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:26:48,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:26:48,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:26:48,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:26:48,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:26:48,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:26:48,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:26:48,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:26:48,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:26:48,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:26:48,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-11-20 17:26:48,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:26:48,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:26:48,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:26:48,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:26:48,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:26:48,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:26:48,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:26:48,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 17:26:48,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:26:48,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 17:26:48,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:26:48,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:26:48,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:26:48,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:26:48,343 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 17:26:48,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:26:48,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:26:48,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:26:48,343 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:26:48,344 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:26:48,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:26:48,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:26:48,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:26:48,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:26:48,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:26:48,345 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:26:48,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:26:48,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:26:48,346 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_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3aef2cb0383bc51116609eb7d5762e5307f0f48dd90c41df34c9f2444e8da09 [2022-11-20 17:26:48,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:26:48,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:26:48,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:26:48,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:26:48,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:26:48,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/ldv-regression/test_while_int.i [2022-11-20 17:26:51,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:26:52,000 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:26:52,000 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/sv-benchmarks/c/ldv-regression/test_while_int.i [2022-11-20 17:26:52,006 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/data/9b800b077/750aa4ac0c8c46a4946d07e84f23f483/FLAGa689423c5 [2022-11-20 17:26:52,022 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/data/9b800b077/750aa4ac0c8c46a4946d07e84f23f483 [2022-11-20 17:26:52,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:26:52,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:26:52,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:26:52,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:26:52,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:26:52,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b84479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52, skipping insertion in model container [2022-11-20 17:26:52,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:26:52,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:26:52,227 WARN L237 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_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2022-11-20 17:26:52,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:26:52,264 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:26:52,276 WARN L237 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_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/sv-benchmarks/c/ldv-regression/test_while_int.i[296,309] [2022-11-20 17:26:52,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:26:52,297 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:26:52,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52 WrapperNode [2022-11-20 17:26:52,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:26:52,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:26:52,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:26:52,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:26:52,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,337 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2022-11-20 17:26:52,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:26:52,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:26:52,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:26:52,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:26:52,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:26:52,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:26:52,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:26:52,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:26:52,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:26:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:26:52,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:26:52,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:26:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:26:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:26:52,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:26:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:26:52,524 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:26:52,526 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:26:52,669 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:26:52,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:26:52,694 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 17:26:52,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:52 BoogieIcfgContainer [2022-11-20 17:26:52,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:26:52,697 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:26:52,698 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:26:52,708 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:26:52,708 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:52" (1/1) ... [2022-11-20 17:26:52,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:26:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:26:52,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-11-20 17:26:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-11-20 17:26:52,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:26:52,787 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:26:52,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:26:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:26:53,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:26:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:26:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-11-20 17:26:53,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 17:26:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:26:53,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:26:53,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:26:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:26:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:26:53,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:26:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-11-20 17:26:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-20 17:26:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 17:26:53,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:26:53,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:26:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:53,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:26:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:53,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:26:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:26:53,546 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-11-20 17:26:53,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:26:53 ImpRootNode [2022-11-20 17:26:53,580 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:26:53,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:26:53,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:26:53,581 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:26:53,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:26:52" (3/4) ... [2022-11-20 17:26:53,584 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:26:53,622 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:26:53,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:26:53,623 INFO L158 Benchmark]: Toolchain (without parser) took 1594.98ms. Allocated memory is still 134.2MB. Free memory was 92.3MB in the beginning and 92.9MB in the end (delta: -577.5kB). Peak memory consumption was 899.4kB. Max. memory is 16.1GB. [2022-11-20 17:26:53,623 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 104.9MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:26:53,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.89ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 82.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:26:53,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:26:53,625 INFO L158 Benchmark]: Boogie Preprocessor took 27.61ms. Allocated memory is still 134.2MB. Free memory was 81.1MB in the beginning and 79.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:26:53,625 INFO L158 Benchmark]: RCFGBuilder took 329.95ms. Allocated memory is still 134.2MB. Free memory was 79.8MB in the beginning and 70.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:26:53,626 INFO L158 Benchmark]: CodeCheck took 882.55ms. Allocated memory is still 134.2MB. Free memory was 69.7MB in the beginning and 94.7MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:26:53,627 INFO L158 Benchmark]: Witness Printer took 41.63ms. Allocated memory is still 134.2MB. Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:26:53,630 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 2 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int i=0; VAL [i=0] [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () VAL [\old(b)=1, b=1] [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () VAL [\old(b)=1, b=1] [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () [L20] CALL __blast_assert () [L8] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83ms. Allocated memory is still 104.9MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.89ms. Allocated memory is still 134.2MB. Free memory was 91.9MB in the beginning and 82.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.61ms. Allocated memory is still 134.2MB. Free memory was 81.1MB in the beginning and 79.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.95ms. Allocated memory is still 134.2MB. Free memory was 79.8MB in the beginning and 70.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 882.55ms. Allocated memory is still 134.2MB. Free memory was 69.7MB in the beginning and 94.7MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.63ms. Allocated memory is still 134.2MB. Free memory was 94.7MB in the beginning and 92.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 17:26:53,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf861a9-9a31-4e2d-87ce-9be72ef097b7/bin/ukojak-pZX7IvK2PQ/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