./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/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_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/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_189b0765-94aa-4a4f-9d43-16542517ad76/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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:56,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:56,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:57:56,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:56,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:56,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:56,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:56,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:56,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:56,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:56,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:56,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:56,672 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:56,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:56,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:56,674 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:56,675 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:56,675 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:56,676 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:56,677 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:56,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:56,678 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:56,679 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:56,679 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:56,680 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:56,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:56,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:56,682 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:56,682 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:56,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:56,684 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:56,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:56,685 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:56,685 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_189b0765-94aa-4a4f-9d43-16542517ad76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2023-11-19 03:57:56,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:56,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:56,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:56,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:56,952 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:56,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2023-11-19 03:57:59,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:58:00,185 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:58:00,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2023-11-19 03:58:00,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/890b50b29/ee07a8f874f8491d9d1c81fba502dcf2/FLAG234f2245d [2023-11-19 03:58:00,211 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/890b50b29/ee07a8f874f8491d9d1c81fba502dcf2 [2023-11-19 03:58:00,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:58:00,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:58:00,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:00,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:58:00,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:58:00,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54305de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00, skipping insertion in model container [2023-11-19 03:58:00,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,252 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:58:00,431 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_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2023-11-19 03:58:00,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:00,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:58:00,475 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_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2023-11-19 03:58:00,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:00,495 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:58:00,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00 WrapperNode [2023-11-19 03:58:00,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:00,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:00,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:58:00,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:58:00,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,529 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-19 03:58:00,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:00,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:58:00,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:58:00,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:58:00,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:58:00,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:58:00,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:58:00,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:58:00,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:58:00,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:58:00,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:58:00,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:58:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:58:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:58:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:58:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:58:00,667 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:58:00,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:58:00,773 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:58:00,799 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:58:00,800 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:58:00,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:00 BoogieIcfgContainer [2023-11-19 03:58:00,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:58:00,809 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:58:00,810 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:58:00,818 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:58:00,818 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:00" (1/1) ... [2023-11-19 03:58:00,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:58:00,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:58:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:58:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:58:00,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:00,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:58:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:00,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:58:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:01,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:58:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:58:01,111 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:58:01,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:58:01 ImpRootNode [2023-11-19 03:58:01,150 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:58:01,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:58:01,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:58:01,151 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:58:01,152 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:00" (3/4) ... [2023-11-19 03:58:01,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:58:01,156 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:58:01,157 INFO L158 Benchmark]: Toolchain (without parser) took 941.13ms. Allocated memory is still 132.1MB. Free memory was 89.2MB in the beginning and 54.4MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 03:58:01,158 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:58:01,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.28ms. Allocated memory is still 132.1MB. Free memory was 89.2MB in the beginning and 77.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:58:01,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.70ms. Allocated memory is still 132.1MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:58:01,160 INFO L158 Benchmark]: Boogie Preprocessor took 19.91ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 75.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:01,161 INFO L158 Benchmark]: RCFGBuilder took 257.16ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 65.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:58:01,162 INFO L158 Benchmark]: CodeCheck took 340.55ms. Allocated memory is still 132.1MB. Free memory was 65.9MB in the beginning and 54.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:58:01,162 INFO L158 Benchmark]: Witness Printer took 5.61ms. Allocated memory is still 132.1MB. Free memory was 54.8MB in the beginning and 54.4MB in the end (delta: 426.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:58:01,167 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 1 procedures, 6 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, 3 NumberOfCodeBlocks, 3 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: 6]: 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 0.f) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 132.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.28ms. Allocated memory is still 132.1MB. Free memory was 89.2MB in the beginning and 77.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.70ms. Allocated memory is still 132.1MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.91ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 75.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 257.16ms. Allocated memory is still 132.1MB. Free memory was 75.4MB in the beginning and 65.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 340.55ms. Allocated memory is still 132.1MB. Free memory was 65.9MB in the beginning and 54.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.61ms. Allocated memory is still 132.1MB. Free memory was 54.8MB in the beginning and 54.4MB in the end (delta: 426.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:58:01,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/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_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/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_189b0765-94aa-4a4f-9d43-16542517ad76/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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:58:03,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:58:03,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:58:04,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:58:04,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:58:04,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:58:04,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:58:04,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:58:04,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:58:04,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:58:04,043 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:58:04,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:58:04,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:58:04,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:58:04,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:58:04,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:58:04,047 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:58:04,047 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:58:04,048 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:58:04,049 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:58:04,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:58:04,050 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:58:04,050 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:58:04,050 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:58:04,051 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:58:04,051 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:04,052 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:58:04,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:58:04,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:58:04,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:58:04,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:58:04,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:58:04,055 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:58:04,055 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:04,055 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:58:04,056 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:58:04,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:58:04,056 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_189b0765-94aa-4a4f-9d43-16542517ad76/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2023-11-19 03:58:04,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:58:04,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:58:04,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:58:04,460 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:58:04,460 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:58:04,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2023-11-19 03:58:07,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:58:07,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:58:07,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2023-11-19 03:58:07,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/a2f9d7c7b/4d59ca83733e4aafb69520f7dfc4b8a2/FLAG0834dc344 [2023-11-19 03:58:07,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/data/a2f9d7c7b/4d59ca83733e4aafb69520f7dfc4b8a2 [2023-11-19 03:58:07,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:58:07,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:58:07,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:07,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:58:07,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:58:07,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:07" (1/1) ... [2023-11-19 03:58:07,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4708e025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:07, skipping insertion in model container [2023-11-19 03:58:07,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:07" (1/1) ... [2023-11-19 03:58:07,862 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:58:08,007 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_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2023-11-19 03:58:08,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:08,034 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:58:08,047 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_189b0765-94aa-4a4f-9d43-16542517ad76/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2023-11-19 03:58:08,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:08,066 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:58:08,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08 WrapperNode [2023-11-19 03:58:08,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:08,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:08,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:58:08,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:58:08,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,101 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2023-11-19 03:58:08,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:08,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:58:08,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:58:08,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:58:08,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:58:08,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:58:08,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:58:08,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:58:08,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:58:08,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:58:08,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:58:08,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:58:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:58:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:58:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:58:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:58:08,312 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:58:08,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:58:08,771 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:58:08,803 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:58:08,803 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:58:08,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:08 BoogieIcfgContainer [2023-11-19 03:58:08,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:58:08,809 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:58:08,809 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:58:08,819 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:58:08,819 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:08" (1/1) ... [2023-11-19 03:58:08,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:58:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:58:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:58:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:58:08,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:08,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:08,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:08,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:08,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:58:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:09,125 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:09,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 03:58:09,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:58:09,527 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:58:09,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:58:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-19 03:58:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-19 03:58:09,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:58:09,936 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 03:58:09,945 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:58:09,954 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:58:09,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:58:09 ImpRootNode [2023-11-19 03:58:09,957 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:58:09,958 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:58:09,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:58:09,958 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:58:09,959 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:08" (3/4) ... [2023-11-19 03:58:09,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:58:09,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 03:58:09,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 03:58:09,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:58:09,969 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:58:10,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:58:10,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:58:10,052 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:58:10,053 INFO L158 Benchmark]: Toolchain (without parser) took 2214.97ms. Allocated memory is still 79.7MB. Free memory was 55.8MB in the beginning and 34.9MB in the end (delta: 20.9MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,054 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 148.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.68ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 45.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.43ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 43.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,055 INFO L158 Benchmark]: Boogie Preprocessor took 26.67ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 42.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:58:10,056 INFO L158 Benchmark]: RCFGBuilder took 677.91ms. Allocated memory is still 79.7MB. Free memory was 42.1MB in the beginning and 53.4MB in the end (delta: -11.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,056 INFO L158 Benchmark]: CodeCheck took 1148.28ms. Allocated memory is still 79.7MB. Free memory was 53.4MB in the beginning and 39.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,057 INFO L158 Benchmark]: Witness Printer took 94.72ms. Allocated memory is still 79.7MB. Free memory was 38.8MB in the beginning and 34.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:58:10,060 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 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 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, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 6 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - PositiveResult [Line: 6]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 148.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.68ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 45.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.43ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 43.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.67ms. Allocated memory is still 79.7MB. Free memory was 43.3MB in the beginning and 42.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 677.91ms. Allocated memory is still 79.7MB. Free memory was 42.1MB in the beginning and 53.4MB in the end (delta: -11.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * CodeCheck took 1148.28ms. Allocated memory is still 79.7MB. Free memory was 53.4MB in the beginning and 39.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 94.72ms. Allocated memory is still 79.7MB. Free memory was 38.8MB in the beginning and 34.9MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:58:10,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189b0765-94aa-4a4f-9d43-16542517ad76/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 Writing output log to file Ultimate.log Result: TRUE