./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.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_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/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_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/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_744745c5-4153-4e4a-b168-42357c66d3c0/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 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:13:30,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:13:30,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:13:30,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:13:30,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:13:30,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:13:30,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:13:30,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:13:30,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:13:30,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:13:30,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:13:30,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:13:30,501 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:13:30,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:13:30,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:13:30,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:13:30,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:13:30,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:13:30,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:13:30,505 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:13:30,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:13:30,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:13:30,507 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:13:30,507 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:13:30,507 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:13:30,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:13:30,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:30,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:13:30,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:13:30,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:13:30,511 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:13:30,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:13:30,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:13:30,512 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_744745c5-4153-4e4a-b168-42357c66d3c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a [2023-11-19 03:13:30,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:13:30,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:13:30,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:13:30,865 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:13:30,865 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:13:30,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2023-11-19 03:13:33,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:13:34,125 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:13:34,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2023-11-19 03:13:34,132 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/2d9f336bc/0a35f1a811074657b0efe3eaac37bdb6/FLAGfea82d7eb [2023-11-19 03:13:34,146 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/2d9f336bc/0a35f1a811074657b0efe3eaac37bdb6 [2023-11-19 03:13:34,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:13:34,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:13:34,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:34,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:13:34,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:13:34,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4618fe86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34, skipping insertion in model container [2023-11-19 03:13:34,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:13:34,331 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_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2023-11-19 03:13:34,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:34,345 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:13:34,355 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_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2023-11-19 03:13:34,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:34,368 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:13:34,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34 WrapperNode [2023-11-19 03:13:34,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:34,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:34,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:13:34,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:13:34,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,394 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-19 03:13:34,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:34,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:13:34,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:13:34,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:13:34,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,404 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:13:34,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:13:34,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:13:34,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:13:34,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:34,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:13:34,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:13:34,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:13:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:13:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:13:34,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:13:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:13:34,540 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:13:34,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:13:34,622 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:13:34,638 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:13:34,638 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:13:34,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:34 BoogieIcfgContainer [2023-11-19 03:13:34,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:13:34,643 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:13:34,643 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:13:34,651 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:13:34,651 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:34" (1/1) ... [2023-11-19 03:13:34,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:13:34,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:13:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 03:13:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 03:13:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:13:34,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:13:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:13:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:34,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:34,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:13:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:13:34,867 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:13:34,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:13:34 ImpRootNode [2023-11-19 03:13:34,889 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:13:34,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:13:34,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:13:34,891 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:13:34,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:34" (3/4) ... [2023-11-19 03:13:34,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:13:34,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:13:34,895 INFO L158 Benchmark]: Toolchain (without parser) took 745.22ms. Allocated memory is still 169.9MB. Free memory was 132.7MB in the beginning and 98.6MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 03:13:34,896 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 93.8MB in the end (delta: 165.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:34,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.41ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 122.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:13:34,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.18ms. Allocated memory is still 169.9MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:13:34,899 INFO L158 Benchmark]: Boogie Preprocessor took 16.92ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:34,900 INFO L158 Benchmark]: RCFGBuilder took 229.07ms. Allocated memory is still 169.9MB. Free memory was 119.6MB in the beginning and 110.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:13:34,901 INFO L158 Benchmark]: CodeCheck took 246.52ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 98.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:13:34,901 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 169.9MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:13:34,906 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 4 NumberOfCodeBlocks, 4 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: 27]: 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 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L1] int __return_main; [L9] double main__x = 1.0; [L10] double main__x1 = main__x / 1.6; VAL [__return_main=0, main__x=1] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__x=1] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__x=1] [L27] reach_error() VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__x=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 93.8MB in the end (delta: 165.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.41ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 122.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.18ms. Allocated memory is still 169.9MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.92ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 119.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 229.07ms. Allocated memory is still 169.9MB. Free memory was 119.6MB in the beginning and 110.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 246.52ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 98.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 169.9MB. Free memory is still 98.6MB. 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 03:13:34,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/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_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/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_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/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_744745c5-4153-4e4a-b168-42357c66d3c0/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 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:13:37,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:13:37,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:13:37,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:13:37,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:13:37,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:13:37,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:13:37,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:13:37,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:13:37,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:13:37,681 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:13:37,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:13:37,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:13:37,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:13:37,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:13:37,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:13:37,685 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:13:37,686 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:13:37,686 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:13:37,687 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:13:37,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:13:37,688 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:13:37,689 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:13:37,689 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:13:37,690 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:13:37,690 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:37,690 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:13:37,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:13:37,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:37,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:13:37,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:13:37,693 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:13:37,694 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:13:37,694 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:37,694 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:13:37,695 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:13:37,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:13:37,695 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_744745c5-4153-4e4a-b168-42357c66d3c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dd2b259de573dae381590d9c9a53c821e05ecea3ef79b47acb4a28edd56bf9a [2023-11-19 03:13:38,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:13:38,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:13:38,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:13:38,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:13:38,165 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:13:38,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2023-11-19 03:13:41,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:13:41,581 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:13:41,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c [2023-11-19 03:13:41,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/eda60bb02/a5ad1cbe35df4f6ba06d6a7a7e3402e0/FLAG2d8db7580 [2023-11-19 03:13:41,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/data/eda60bb02/a5ad1cbe35df4f6ba06d6a7a7e3402e0 [2023-11-19 03:13:41,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:13:41,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:13:41,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:41,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:13:41,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:13:41,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d74a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41, skipping insertion in model container [2023-11-19 03:13:41,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:13:41,795 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_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2023-11-19 03:13:41,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:41,815 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:13:41,828 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_744745c5-4153-4e4a-b168-42357c66d3c0/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i.p+cfa-reducer.c[674,687] [2023-11-19 03:13:41,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:13:41,844 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:13:41,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41 WrapperNode [2023-11-19 03:13:41,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:13:41,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:41,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:13:41,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:13:41,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,877 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-11-19 03:13:41,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:13:41,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:13:41,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:13:41,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:13:41,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:13:41,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:13:41,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:13:41,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:13:41,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:41" (1/1) ... [2023-11-19 03:13:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:13:41,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:13:41,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:13:41,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:13:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:13:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:13:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:13:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:13:42,075 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:13:42,078 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:13:45,529 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:13:45,550 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:13:45,550 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:13:45,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:45 BoogieIcfgContainer [2023-11-19 03:13:45,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:13:45,557 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:13:45,557 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:13:45,578 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:13:45,579 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:45" (1/1) ... [2023-11-19 03:13:45,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:13:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:13:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 03:13:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 03:13:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:13:45,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:13:45,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:13:45,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:13:45,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:13:45,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:13:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:13:46,795 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:13:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:13:47,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:13:47,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:13:49,815 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 03:13:49,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:14:02,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:14:08,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:14:18,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:14:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 03:14:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 03:14:19,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:14:19,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:19,091 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:14:19,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:14:19,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:14:19,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744745c5-4153-4e4a-b168-42357c66d3c0/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:14:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:21,469 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:14:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:23,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:14:23,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:45,252 WARN L293 SmtUtils]: Spent 7.41s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)