./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/water_pid.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:55:14,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:55:14,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:55:14,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:55:14,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:55:14,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:55:14,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:55:14,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:55:14,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:55:14,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:55:14,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:55:14,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:55:14,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:55:14,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:55:14,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:55:14,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:55:14,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:55:14,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:55:14,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:55:14,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:55:14,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:55:14,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:55:14,350 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:55:14,350 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:55:14,351 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:55:14,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:55:14,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:14,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:55:14,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:55:14,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:55:14,355 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:55:14,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:55:14,356 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:55:14,356 INFO L153 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2023-11-19 02:55:14,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:55:14,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:55:14,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:55:14,670 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:55:14,670 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:55:14,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/water_pid.c [2023-11-19 02:55:17,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:55:18,155 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:55:18,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c [2023-11-19 02:55:18,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/8f84d101f/304916c20977453cb1ecaa750fbbc477/FLAGcc178fb0d [2023-11-19 02:55:18,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/8f84d101f/304916c20977453cb1ecaa750fbbc477 [2023-11-19 02:55:18,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:55:18,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:55:18,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:18,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:55:18,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:55:18,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f00d25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18, skipping insertion in model container [2023-11-19 02:55:18,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:18,388 WARN L240 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-19 02:55:18,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:18,419 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:55:18,432 WARN L240 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-19 02:55:18,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:18,455 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:55:18,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18 WrapperNode [2023-11-19 02:55:18,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:18,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:18,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:55:18,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:55:18,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,489 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2023-11-19 02:55:18,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:18,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:55:18,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:55:18,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:55:18,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:55:18,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:55:18,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:55:18,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:55:18,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:18,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:55:18,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:55:18,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:55:18,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:55:18,623 INFO L130 BoogieDeclarations]: Found specification of procedure y [2023-11-19 02:55:18,623 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2023-11-19 02:55:18,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:55:18,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:55:18,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:55:18,691 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:55:18,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:55:18,841 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:55:18,894 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:55:18,902 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:55:18,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:18 BoogieIcfgContainer [2023-11-19 02:55:18,909 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:55:18,911 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:55:18,912 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:55:18,923 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:55:18,924 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:18" (1/1) ... [2023-11-19 02:55:18,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:55:19,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-19 02:55:19,015 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-19 02:55:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:55:19,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:55:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:55:19,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:55:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:55:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:55:19,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:55:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:55:19,263 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:55:19,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-11-19 02:55:19,292 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-11-19 02:55:19,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:55:19 ImpRootNode [2023-11-19 02:55:19,298 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:55:19,299 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:55:19,299 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:55:19,299 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:55:19,300 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:18" (3/4) ... [2023-11-19 02:55:19,302 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:55:19,303 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:55:19,305 INFO L158 Benchmark]: Toolchain (without parser) took 1120.57ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 73.0MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,305 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:19,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.26ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 101.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.19ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,308 INFO L158 Benchmark]: Boogie Preprocessor took 39.46ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 98.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,309 INFO L158 Benchmark]: RCFGBuilder took 378.63ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 87.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,309 INFO L158 Benchmark]: CodeCheck took 386.97ms. Allocated memory is still 151.0MB. Free memory was 87.7MB in the beginning and 73.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 02:55:19,310 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 73.0MB in the end (delta: 538.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:55:19,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 8]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 VAL [K=1/2, yc=1/2] [L36] CALL, EXPR y(0) VAL [\old(i)=0, \old(yn)=2, yn=2] [L18] yn += ui [L19] return yn; [L36] RET, EXPR y(0) VAL [K=1/2, yc=1/2, yn=3] [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [K=1/2, epi=4, i=0, sumej=4, yc=1/2, yi=3, yn=3] [L39] COND TRUE i<120 VAL [K=1/2, epi=4, i=0, sumej=4, yc=1/2, yi=3, yn=3] [L40] CALL, EXPR y(i) VAL [\old(i)=0, \old(yn)=3, yn=3] [L18] yn += ui [L19] return yn; [L40] RET, EXPR y(i) VAL [K=1/2, epi=4, i=0, sumej=4, yc=1/2, yi=3, yn=5] [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L46] CALL __VERIFIER_assert(epi >= -1. && epi <= 1.) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, yn=5] [L8] reach_error() VAL [\old(cond)=0, cond=0, yn=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.26ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 101.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.19ms. Allocated memory is still 151.0MB. Free memory was 101.3MB in the beginning and 99.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.46ms. Allocated memory is still 151.0MB. Free memory was 99.7MB in the beginning and 98.7MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.63ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 87.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 386.97ms. Allocated memory is still 151.0MB. Free memory was 87.7MB in the beginning and 73.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 151.0MB. Free memory was 73.5MB in the beginning and 73.0MB in the end (delta: 538.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:55:19,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:55:22,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:55:22,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:55:22,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:55:22,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:55:22,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:55:22,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:55:22,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:55:22,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:55:22,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:55:22,316 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:55:22,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:55:22,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:55:22,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:55:22,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:55:22,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:55:22,320 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:55:22,321 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:55:22,322 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:55:22,322 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:55:22,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:55:22,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:55:22,324 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:55:22,324 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:55:22,325 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:55:22,325 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:55:22,326 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:55:22,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:55:22,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:22,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:55:22,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:55:22,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:55:22,330 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:55:22,330 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:55:22,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:55:22,331 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:55:22,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:55:22,332 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2023-11-19 02:55:22,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:55:22,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:55:22,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:55:22,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:55:22,800 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:55:22,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/water_pid.c [2023-11-19 02:55:25,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:55:26,179 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:55:26,179 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c [2023-11-19 02:55:26,190 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/aa6846517/780a0727c7d3485f9b72d7697bdac408/FLAGc6547b32c [2023-11-19 02:55:26,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/data/aa6846517/780a0727c7d3485f9b72d7697bdac408 [2023-11-19 02:55:26,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:55:26,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:55:26,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:26,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:55:26,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:55:26,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d619d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26, skipping insertion in model container [2023-11-19 02:55:26,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:55:26,458 WARN L240 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-19 02:55:26,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:26,505 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:55:26,524 WARN L240 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_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/sv-benchmarks/c/float-benchs/water_pid.c[452,465] [2023-11-19 02:55:26,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:55:26,565 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:55:26,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26 WrapperNode [2023-11-19 02:55:26,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:55:26,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:26,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:55:26,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:55:26,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,630 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-11-19 02:55:26,631 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:55:26,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:55:26,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:55:26,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:55:26,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:55:26,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:55:26,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:55:26,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:55:26,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:26" (1/1) ... [2023-11-19 02:55:26,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:55:26,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:55:26,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:55:26,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:55:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:55:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:55:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure y [2023-11-19 02:55:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2023-11-19 02:55:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:55:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:55:26,918 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:55:26,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:55:37,999 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:55:38,035 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:55:38,035 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:55:38,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:38 BoogieIcfgContainer [2023-11-19 02:55:38,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:55:38,041 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:55:38,042 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:55:38,053 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:55:38,054 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:38" (1/1) ... [2023-11-19 02:55:38,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:55:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:55:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-19 02:55:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-19 02:55:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:55:38,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:55:38,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:55:38,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:55:38,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:55:38,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:55:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:46,302 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:55:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:55:58,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 02:55:58,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:56:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:56:08,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0b0e8a-7cbe-49c2-b24c-847a07695f6b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:56:17,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []