./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i --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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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 2f4e199f6665b6821475945a72290dab8d4d620db3a5150842d6f2ec9f4c430d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:21:28,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:21:28,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:21:28,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:21:28,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:21:28,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:21:28,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:21:28,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:21:28,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:21:28,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:21:28,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:21:28,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:21:28,878 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:21:28,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:21:28,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:21:28,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:21:28,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:21:28,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:21:28,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:21:28,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:21:28,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:21:28,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:21:28,884 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:21:28,885 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:21:28,885 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:21:28,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:21:28,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:28,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:21:28,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:21:28,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:21:28,890 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:21:28,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:21:28,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:21:28,891 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f4e199f6665b6821475945a72290dab8d4d620db3a5150842d6f2ec9f4c430d [2023-11-19 03:21:29,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:21:29,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:21:29,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:21:29,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:21:29,290 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:21:29,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2023-11-19 03:21:32,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:21:32,899 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:21:32,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2023-11-19 03:21:32,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/38a91c9f1/e869166bc0cd4d099d0814232c73ce6c/FLAG5e08ae2dd [2023-11-19 03:21:32,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/38a91c9f1/e869166bc0cd4d099d0814232c73ce6c [2023-11-19 03:21:32,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:21:32,932 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:21:32,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:32,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:21:32,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:21:32,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:32" (1/1) ... [2023-11-19 03:21:32,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ec85f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:32, skipping insertion in model container [2023-11-19 03:21:32,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:32" (1/1) ... [2023-11-19 03:21:32,969 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:21:33,176 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i[804,817] [2023-11-19 03:21:33,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:33,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:21:33,227 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i[804,817] [2023-11-19 03:21:33,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:33,251 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:21:33,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33 WrapperNode [2023-11-19 03:21:33,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:33,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:33,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:21:33,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:21:33,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,291 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-11-19 03:21:33,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:33,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:21:33,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:21:33,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:21:33,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:21:33,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:21:33,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:21:33,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:21:33,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:21:33,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:21:33,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:21:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:21:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:21:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:21:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:21:33,534 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:21:33,536 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:21:33,637 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:21:33,666 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:21:33,667 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:21:33,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:33 BoogieIcfgContainer [2023-11-19 03:21:33,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:21:33,677 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:21:33,678 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:21:33,693 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:21:33,694 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:33" (1/1) ... [2023-11-19 03:21:33,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:21:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 03:21:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 03:21:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:21:33,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:33,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:21:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:34,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:21:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:34,054 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:21:34,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:21:34 ImpRootNode [2023-11-19 03:21:34,077 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:21:34,078 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:21:34,078 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:21:34,079 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:21:34,079 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:33" (3/4) ... [2023-11-19 03:21:34,082 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:21:34,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:21:34,095 INFO L158 Benchmark]: Toolchain (without parser) took 1162.51ms. Allocated memory is still 157.3MB. Free memory was 124.3MB in the beginning and 109.9MB in the end (delta: 14.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-19 03:21:34,096 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:21:34,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.40ms. Allocated memory is still 157.3MB. Free memory was 124.3MB in the beginning and 113.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:21:34,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.16ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:21:34,100 INFO L158 Benchmark]: Boogie Preprocessor took 26.36ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 111.8MB in the end (delta: 715.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:21:34,101 INFO L158 Benchmark]: RCFGBuilder took 356.40ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 120.8MB in the end (delta: -9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:21:34,102 INFO L158 Benchmark]: CodeCheck took 400.47ms. Allocated memory is still 157.3MB. Free memory was 120.8MB in the beginning and 110.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:21:34,103 INFO L158 Benchmark]: Witness Printer took 5.92ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 109.9MB in the end (delta: 501.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:21:34,109 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: 0.3s, 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, 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: 13]: 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 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21. Possible FailurePath: [L20] double x = 1.0; [L21] double x1 = x/2.5; VAL [x=1] [L23] COND FALSE !(x1 != x) [L29] CALL __VERIFIER_assert(x == 0) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.40ms. Allocated memory is still 157.3MB. Free memory was 124.3MB in the beginning and 113.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.16ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 112.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.36ms. Allocated memory is still 157.3MB. Free memory was 112.5MB in the beginning and 111.8MB in the end (delta: 715.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.40ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 120.8MB in the end (delta: -9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 400.47ms. Allocated memory is still 157.3MB. Free memory was 120.8MB in the beginning and 110.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 5.92ms. Allocated memory is still 157.3MB. Free memory was 110.4MB in the beginning and 109.9MB in the end (delta: 501.1kB). 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 03:21:34,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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 2f4e199f6665b6821475945a72290dab8d4d620db3a5150842d6f2ec9f4c430d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:21:36,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:21:36,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:21:36,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:21:36,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:21:36,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:21:36,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:21:36,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:21:36,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:21:36,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:21:36,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:21:36,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:21:36,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:21:36,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:21:36,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:21:36,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:21:36,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:21:36,992 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:21:36,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:21:36,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:21:36,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:21:36,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:21:36,996 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:21:36,996 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:21:36,996 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:21:36,997 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:21:36,997 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:21:36,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:21:36,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:36,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:21:36,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:21:36,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:21:36,999 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:21:36,999 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:21:37,000 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:21:37,000 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:21:37,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:21:37,000 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f4e199f6665b6821475945a72290dab8d4d620db3a5150842d6f2ec9f4c430d [2023-11-19 03:21:37,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:21:37,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:21:37,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:21:37,505 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:21:37,506 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:21:37,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2023-11-19 03:21:40,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:21:41,182 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:21:41,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i [2023-11-19 03:21:41,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/466c0a788/b2492ea1b6d74e089fab886fffa28b6d/FLAGe2ec79f59 [2023-11-19 03:21:41,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/data/466c0a788/b2492ea1b6d74e089fab886fffa28b6d [2023-11-19 03:21:41,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:21:41,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:21:41,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:41,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:21:41,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:21:41,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ff9720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41, skipping insertion in model container [2023-11-19 03:21:41,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,254 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:21:41,496 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i[804,817] [2023-11-19 03:21:41,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:41,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:21:41,563 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_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/sv-benchmarks/c/floats-esbmc-regression/Double_div.i[804,817] [2023-11-19 03:21:41,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:41,593 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:21:41,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41 WrapperNode [2023-11-19 03:21:41,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:41,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:41,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:21:41,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:21:41,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,645 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-19 03:21:41,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:41,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:21:41,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:21:41,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:21:41,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:21:41,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:21:41,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:21:41,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:21:41,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:41" (1/1) ... [2023-11-19 03:21:41,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:41,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:21:41,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:21:41,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:21:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:21:41,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:21:41,953 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:21:41,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:21:42,812 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:21:42,847 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:21:42,847 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:21:42,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:42 BoogieIcfgContainer [2023-11-19 03:21:42,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:21:42,853 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:21:42,854 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:21:42,865 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:21:42,866 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:42" (1/1) ... [2023-11-19 03:21:42,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:21:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 03:21:42,935 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 03:21:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:21:42,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:42,939 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:21:42,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:21:42,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:21:42,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:21:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:43,713 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:21:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:44,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:21:44,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:21:49,261 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 03:21:49,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:21:55,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:21:56,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:22:02,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:22:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 03:22:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 03:22:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:22:02,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:02,172 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:02,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:02,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:22:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:03,516 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:05,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:22:05,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:22:13,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba17ca30-acdb-41e4-9bc7-50669fadb1ea/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:21,056 WARN L293 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 17 DAG size of output: 13 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)