./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9 --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 fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:47:18,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:47:18,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:47:18,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:47:18,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:47:18,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:47:18,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:47:18,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:47:18,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:47:18,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:47:18,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:47:18,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:47:18,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:47:18,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:47:18,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:47:18,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:47:18,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:47:18,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:47:18,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:47:18,910 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:47:18,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:47:18,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:47:18,912 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:47:18,913 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:47:18,913 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:47:18,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:47:18,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:18,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:47:18,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:47:18,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:47:18,916 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:47:18,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:47:18,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:47:18,916 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_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb642764a70597a56a9c7e88ddf473ddd44e8ae88be573923352b61cd2189845 [2023-12-02 23:47:19,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:47:19,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:47:19,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:47:19,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:47:19,145 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:47:19,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2023-12-02 23:47:21,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:47:22,044 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:47:22,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c [2023-12-02 23:47:22,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/data/454210924/815e4406dd2b4e5cbaeaf0f404a89501/FLAG3e90c73a1 [2023-12-02 23:47:22,064 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/data/454210924/815e4406dd2b4e5cbaeaf0f404a89501 [2023-12-02 23:47:22,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:47:22,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:47:22,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:22,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:47:22,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:47:22,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e72b559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22, skipping insertion in model container [2023-12-02 23:47:22,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,091 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:47:22,229 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_6bcb296a-2027-4b0f-823c-362527c1e3b5/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2023-12-02 23:47:22,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:22,244 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:47:22,258 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_6bcb296a-2027-4b0f-823c-362527c1e3b5/sv-benchmarks/c/recursive/BallRajamani-SPIN2000-Fig1.c[718,731] [2023-12-02 23:47:22,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:47:22,273 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:47:22,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22 WrapperNode [2023-12-02 23:47:22,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:47:22,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:22,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:47:22,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:47:22,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,305 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-12-02 23:47:22,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:47:22,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:47:22,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:47:22,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:47:22,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,324 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:47:22,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:47:22,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:47:22,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:47:22,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:47:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:47:22,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:47:22,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure A [2023-12-02 23:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure A [2023-12-02 23:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:47:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:47:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:47:22,461 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:47:22,463 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:47:22,566 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:47:22,586 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:47:22,586 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 23:47:22,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:22 BoogieIcfgContainer [2023-12-02 23:47:22,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:47:22,589 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:47:22,589 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:47:22,600 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:47:22,600 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:22" (1/1) ... [2023-12-02 23:47:22,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:47:22,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-12-02 23:47:22,663 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 23:47:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:47:22,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:22,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:47:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:47:23,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:47:23,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2023-12-02 23:47:23,031 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-12-02 23:47:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 23:47:23,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:47:23,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:47:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:23,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:47:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:23,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 23:47:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 23:47:23,169 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-02 23:47:23,193 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-12-02 23:47:23,194 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-12-02 23:47:23,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-12-02 23:47:23,195 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated [2023-12-02 23:47:23,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 11:47:23 ImpRootNode [2023-12-02 23:47:23,199 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 23:47:23,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 23:47:23,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 23:47:23,200 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 23:47:23,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:47:22" (3/4) ... [2023-12-02 23:47:23,201 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 23:47:23,208 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-12-02 23:47:23,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-12-02 23:47:23,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated [2023-12-02 23:47:23,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated [2023-12-02 23:47:23,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 23:47:23,246 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 23:47:23,247 INFO L158 Benchmark]: Toolchain (without parser) took 1179.45ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 66.9MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,247 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:47:23,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.29ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 111.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.72ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 110.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,249 INFO L158 Benchmark]: Boogie Preprocessor took 18.01ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 108.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 23:47:23,249 INFO L158 Benchmark]: RCFGBuilder took 263.68ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 98.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,250 INFO L158 Benchmark]: CodeCheck took 610.48ms. Allocated memory is still 159.4MB. Free memory was 98.9MB in the beginning and 69.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,250 INFO L158 Benchmark]: Witness Printer took 46.38ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 23:47:23,253 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 14 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 6 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/4 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: 33]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int g; [L28] int g = __VERIFIER_nondet_int(); [L29] int h = !g; VAL [g=0, g=1, h=0] [L30] CALL A(g,h) VAL [\old(a1)=1, \old(a2)=0, \old(g)=0, g=0] [L19] COND TRUE \read(a1) VAL [\old(a1)=1, \old(a2)=0, \old(g)=0, a1=1, a2=0, g=0] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=1, \old(g)=0, g=0] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=1, \old(g)=0, a1=0, a2=1, g=1] [L20] RET A(a2,a1) VAL [\old(a1)=1, \old(a2)=0, \old(g)=0, a1=1, a2=0, g=1] [L30] RET A(g,h) VAL [g=1, g=1, h=0] [L31] CALL A(g,h) VAL [\old(a1)=1, \old(a2)=0, \old(g)=1, g=1] [L19] COND TRUE \read(a1) VAL [\old(a1)=1, \old(a2)=0, \old(g)=1, a1=1, a2=0, g=1] [L20] CALL A(a2,a1) VAL [\old(a1)=0, \old(a2)=1, \old(g)=1, g=1] [L19] COND FALSE !(\read(a1)) [L22] g = a2 VAL [\old(a1)=0, \old(a2)=1, \old(g)=1, a1=0, a2=1, g=1] [L20] RET A(a2,a1) VAL [\old(a1)=1, \old(a2)=0, \old(g)=1, a1=1, a2=0, g=1] [L31] RET A(g,h) VAL [g=1, g=1, h=0] [L32] COND TRUE \read(g) VAL [g=1, g=1, h=0] [L33] reach_error() VAL [g=1, g=1, h=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.29ms. Allocated memory is still 159.4MB. Free memory was 121.4MB in the beginning and 111.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.72ms. Allocated memory is still 159.4MB. Free memory was 111.5MB in the beginning and 110.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.01ms. Allocated memory is still 159.4MB. Free memory was 110.2MB in the beginning and 108.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.68ms. Allocated memory is still 159.4MB. Free memory was 108.9MB in the beginning and 98.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 610.48ms. Allocated memory is still 159.4MB. Free memory was 98.9MB in the beginning and 69.0MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 46.38ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - 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 Unfinished Backtranslation: IdentifierExpression #t~ret4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-02 23:47:23,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bcb296a-2027-4b0f-823c-362527c1e3b5/bin/ukojak-verify-Qdu7aM0XO9/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE