./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi --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 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:07:51,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:07:51,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:07:51,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:07:51,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:07:51,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:07:51,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:07:51,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:07:51,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:07:51,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:07:51,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:07:51,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:07:51,631 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:07:51,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:07:51,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:07:51,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:07:51,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:07:51,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:07:51,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:07:51,635 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:07:51,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:07:51,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:07:51,637 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:07:51,639 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:07:51,640 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:07:51,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:07:51,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:51,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:07:51,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:07:51,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:07:51,644 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:07:51,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:07:51,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:07:51,644 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 [2023-11-24 23:07:52,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:07:52,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:07:52,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:07:52,041 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:07:52,041 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:07:52,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2023-11-24 23:07:55,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:07:55,375 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:07:55,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2023-11-24 23:07:55,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/7c3dfd505/479e46dae813428b9fa276cae704a25a/FLAG016ae6db9 [2023-11-24 23:07:55,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/7c3dfd505/479e46dae813428b9fa276cae704a25a [2023-11-24 23:07:55,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:07:55,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:07:55,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:55,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:07:55,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:07:55,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398bada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55, skipping insertion in model container [2023-11-24 23:07:55,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,476 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:07:55,718 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2023-11-24 23:07:55,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:55,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:07:55,800 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2023-11-24 23:07:55,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:55,831 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:07:55,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55 WrapperNode [2023-11-24 23:07:55,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:55,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:55,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:07:55,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:07:55,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,890 INFO L138 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 232 [2023-11-24 23:07:55,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:55,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:07:55,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:07:55,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:07:55,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:07:55,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:07:55,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:07:55,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:07:55,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:55" (1/1) ... [2023-11-24 23:07:55,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:55,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:07:55,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:07:55,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:07:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:07:56,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:07:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:07:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:07:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:07:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:07:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-24 23:07:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-24 23:07:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:07:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:07:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:07:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 23:07:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-24 23:07:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-24 23:07:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:07:56,170 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:07:56,172 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:07:56,727 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:07:56,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:07:56,865 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-24 23:07:56,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:56 BoogieIcfgContainer [2023-11-24 23:07:56,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:07:56,868 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:07:56,868 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:07:56,879 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:07:56,879 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:56" (1/1) ... [2023-11-24 23:07:56,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:07:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 67 states and 109 transitions. [2023-11-24 23:07:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 109 transitions. [2023-11-24 23:07:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:07:56,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 67 states and 104 transitions. [2023-11-24 23:07:57,243 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 104 transitions. [2023-11-24 23:07:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:07:57,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:57,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:07:57,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:07:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:07:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:07:57,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:07:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:07:57,586 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 23:07:57,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:07:57 ImpRootNode [2023-11-24 23:07:57,664 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:07:57,665 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:07:57,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:07:57,665 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:07:57,666 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:56" (3/4) ... [2023-11-24 23:07:57,668 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:07:57,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:07:57,670 INFO L158 Benchmark]: Toolchain (without parser) took 2254.33ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 104.2MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:07:57,671 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:07:57,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.05ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 86.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:07:57,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.41ms. Allocated memory is still 136.3MB. Free memory was 86.7MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:07:57,673 INFO L158 Benchmark]: Boogie Preprocessor took 48.77ms. Allocated memory is still 136.3MB. Free memory was 84.3MB in the beginning and 81.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:07:57,674 INFO L158 Benchmark]: RCFGBuilder took 925.97ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 78.3MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:07:57,674 INFO L158 Benchmark]: CodeCheck took 796.70ms. Allocated memory is still 136.3MB. Free memory was 78.3MB in the beginning and 104.6MB in the end (delta: -26.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-11-24 23:07:57,675 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 104.2MB in the end (delta: 304.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:07:57,678 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 3 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 90 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 231]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 230, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L224] float x = 1.0f / 0.0f; [L225] float y = -1.0f / 0.0f; [L227] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] EXPR gf_u.value = (x) [L127] EXPR gf_u.word [L127] EXPR (hx) = gf_u.word [L124-L128] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L129] ix = hx & 0x7fffffff VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] EXPR gf_u.value = (y) [L133] EXPR gf_u.word [L133] EXPR (hy) = gf_u.word [L130-L134] { ieee_float_shape_type gf_u; gf_u.value = (y); (hy) = gf_u.word; } VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=0, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L135] iy = hy & 0x7fffffff VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=0, ix=2139095041, iy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=4, \old(y)=2, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=0, ix=2139095041, iy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L227] RET, EXPR __ieee754_atan2f(y, x) [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != -pi_o_4 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] [L231] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=10, tiny_atan2=1/1000000000000000000000000000000, x=4, y=2, zero_atan2=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.05ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 86.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.41ms. Allocated memory is still 136.3MB. Free memory was 86.7MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.77ms. Allocated memory is still 136.3MB. Free memory was 84.3MB in the beginning and 81.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 925.97ms. Allocated memory is still 136.3MB. Free memory was 81.8MB in the beginning and 78.3MB in the end (delta: 3.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 796.70ms. Allocated memory is still 136.3MB. Free memory was 78.3MB in the beginning and 104.6MB in the end (delta: -26.3MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 104.2MB in the end (delta: 304.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:07:57,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi --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 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:00,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:00,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:08:00,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:00,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:00,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:00,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:00,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:00,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:00,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:00,656 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:00,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:00,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:00,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:00,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:00,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:00,660 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:08:00,661 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:08:00,661 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:08:00,662 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:00,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:00,663 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:00,664 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:00,664 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:00,664 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:00,665 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:00,665 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:08:00,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:00,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:00,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:00,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:00,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:00,669 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:08:00,669 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:00,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:00,670 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:08:00,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:08:00,670 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a95f5d2ca1f6d76ea6fa52a391b975f9ddf1d0bb78f1805d7d4306e3b7f84 [2023-11-24 23:08:01,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:01,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:01,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:01,187 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:01,188 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:01,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2023-11-24 23:08:04,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:04,756 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:04,757 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c [2023-11-24 23:08:04,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/c652035cf/3342561333294302bd0416340507d47c/FLAGc97582c3d [2023-11-24 23:08:04,783 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/data/c652035cf/3342561333294302bd0416340507d47c [2023-11-24 23:08:04,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:04,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:04,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:04,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:04,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:04,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:04" (1/1) ... [2023-11-24 23:08:04,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78683a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:04, skipping insertion in model container [2023-11-24 23:08:04,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:04" (1/1) ... [2023-11-24 23:08:04,829 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:05,128 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2023-11-24 23:08:05,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:05,168 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:05,237 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_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/sv-benchmarks/c/float-newlib/float_req_bl_0686b.c[5269,5282] [2023-11-24 23:08:05,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:05,260 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:05,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05 WrapperNode [2023-11-24 23:08:05,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:05,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:05,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:05,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:05,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,320 INFO L138 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 213 [2023-11-24 23:08:05,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:05,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:05,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:05,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:05,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,397 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:05,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:05,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:05,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:05,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:05" (1/1) ... [2023-11-24 23:08:05,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:05,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:05,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:05,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-24 23:08:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:08:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:08:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:08:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-24 23:08:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-24 23:08:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:08:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:08:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-24 23:08:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-24 23:08:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:08:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:08:05,664 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:05,667 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:44,663 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:44,846 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:44,846 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-24 23:08:44,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:44 BoogieIcfgContainer [2023-11-24 23:08:44,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:44,850 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:44,850 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:44,861 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:44,861 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:44" (1/1) ... [2023-11-24 23:08:44,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:44,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 67 states and 109 transitions. [2023-11-24 23:08:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 109 transitions. [2023-11-24 23:08:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:08:44,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:44,930 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:08:44,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:08:44,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:08:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:46,212 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:08:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:46,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:46,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:46,349 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:08:46,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:08:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 67 states and 104 transitions. [2023-11-24 23:08:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 104 transitions. [2023-11-24 23:08:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:08:47,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:47,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:08:47,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:08:47,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:08:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:50,548 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:08:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:50,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 23:08:50,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:51,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:08:52,075 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-24 23:08:52,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 31 [2023-11-24 23:08:52,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:08:52,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2023-11-24 23:08:53,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:53,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:08:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 103 transitions. [2023-11-24 23:08:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 103 transitions. [2023-11-24 23:08:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:08:55,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:55,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:55,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:08:55,977 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:08:55,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db92216b-bee6-44bf-a04c-a8ce1ddbc4b6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:08:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:58,507 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:08:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:58,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:08:58,597 INFO L285 TraceCheckSpWp]: Computing forward predicates...