./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:22:16,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:22:16,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 04:22:16,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:22:16,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:22:16,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:22:16,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:22:16,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:22:16,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:22:16,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:22:16,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:22:16,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:22:16,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:22:16,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:22:16,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:22:16,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:22:16,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:22:16,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:22:16,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:22:16,931 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:22:16,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:22:16,935 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:22:16,936 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:22:16,936 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:22:16,937 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:22:16,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:22:16,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:22:16,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:22:16,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:22:16,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:22:16,939 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:22:16,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:22:16,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:22:16,940 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2023-12-03 04:22:17,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:22:17,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:22:17,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:22:17,167 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:22:17,168 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:22:17,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-12-03 04:22:20,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:22:20,172 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:22:20,173 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-12-03 04:22:20,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/0b0b22a5e/d2b0b0c5c8a34d8f80a63722974e518b/FLAGac10ca0e5 [2023-12-03 04:22:20,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/0b0b22a5e/d2b0b0c5c8a34d8f80a63722974e518b [2023-12-03 04:22:20,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:22:20,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:22:20,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:22:20,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:22:20,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:22:20,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14928890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20, skipping insertion in model container [2023-12-03 04:22:20,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,222 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:22:20,362 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-12-03 04:22:20,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:22:20,375 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:22:20,397 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-12-03 04:22:20,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:22:20,412 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:22:20,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20 WrapperNode [2023-12-03 04:22:20,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:22:20,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:22:20,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:22:20,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:22:20,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,443 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-12-03 04:22:20,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:22:20,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:22:20,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:22:20,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:22:20,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:22:20,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:22:20,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:22:20,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:22:20,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:22:20,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:22:20,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:22:20,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:22:20,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:22:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:22:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:22:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-12-03 04:22:20,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-12-03 04:22:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-03 04:22:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:22:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:22:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:22:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:22:20,602 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:22:20,605 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:22:20,771 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:22:20,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:22:20,864 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 04:22:20,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:22:20 BoogieIcfgContainer [2023-12-03 04:22:20,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:22:20,867 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:22:20,867 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:22:20,877 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:22:20,878 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:22:20" (1/1) ... [2023-12-03 04:22:20,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:22:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-03 04:22:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-03 04:22:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:22:20,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:22:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:22:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-12-03 04:22:21,125 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-12-03 04:22:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 04:22:21,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:21,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:22:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:22:21,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:22:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:22:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:22:21,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:22:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:22:21,296 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 04:22:21,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-12-03 04:22:21,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-12-03 04:22:21,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:22:21 ImpRootNode [2023-12-03 04:22:21,325 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:22:21,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:22:21,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:22:21,326 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:22:21,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:22:20" (3/4) ... [2023-12-03 04:22:21,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:22:21,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:22:21,331 INFO L158 Benchmark]: Toolchain (without parser) took 1135.45ms. Allocated memory is still 182.5MB. Free memory was 135.5MB in the beginning and 77.3MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-12-03 04:22:21,332 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:22:21,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.43ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 124.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:22:21,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.08ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:22:21,333 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 120.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:22:21,334 INFO L158 Benchmark]: RCFGBuilder took 399.32ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 101.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-03 04:22:21,335 INFO L158 Benchmark]: CodeCheck took 458.60ms. Allocated memory is still 182.5MB. Free memory was 101.2MB in the beginning and 78.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-03 04:22:21,335 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 182.5MB. Free memory was 78.1MB in the beginning and 77.3MB in the end (delta: 800.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:22:21,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 79 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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: 87]: 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 86, overapproximation of someUnaryDOUBLEoperation at line 82. Possible FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; [L83] CALL, EXPR fmax_double(x, y) [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L29] ieee_double_shape_type ew_u; [L30] EXPR ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] EXPR (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] EXPR (lsw) = ew_u.parts.lsw [L28-L33] { ieee_double_shape_type ew_u; ew_u.value = (x); (msw) = ew_u.parts.msw; (lsw) = ew_u.parts.lsw; } VAL [\old(x)=0, lsw=4294967295, msw=2146435072, x=0] [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=2, x=0, y=2] [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; VAL [\old(x)=0, \old(y)=2, \result=2, x=0, y=2] [L83] RET, EXPR fmax_double(x, y) [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=2, x=0, y=2] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() VAL [res=2, x=0, y=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.43ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 124.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.08ms. Allocated memory is still 182.5MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 120.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.32ms. Allocated memory is still 182.5MB. Free memory was 120.9MB in the beginning and 101.2MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 458.60ms. Allocated memory is still 182.5MB. Free memory was 101.2MB in the beginning and 78.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 182.5MB. Free memory was 78.1MB in the beginning and 77.3MB in the end (delta: 800.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 04:22:21,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:22:23,299 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:22:23,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 04:22:23,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:22:23,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:22:23,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:22:23,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:22:23,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:22:23,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:22:23,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:22:23,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:22:23,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:22:23,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:22:23,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:22:23,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:22:23,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:22:23,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:22:23,417 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:22:23,418 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:22:23,418 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:22:23,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:22:23,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:22:23,420 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:22:23,421 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:22:23,421 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:22:23,421 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:23,422 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:22:23,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:22:23,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:22:23,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:22:23,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:22:23,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:22:23,425 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:22:23,425 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:23,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:22:23,426 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:22:23,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:22:23,427 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2023-12-03 04:22:23,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:22:23,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:22:23,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:22:23,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:22:23,748 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:22:23,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-12-03 04:22:26,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:22:26,690 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:22:26,690 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-12-03 04:22:26,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/0f24bdbea/2ea874faab6448d1ac73d2cead5e0935/FLAGabddae4f5 [2023-12-03 04:22:26,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/data/0f24bdbea/2ea874faab6448d1ac73d2cead5e0935 [2023-12-03 04:22:26,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:22:26,714 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:22:26,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:22:26,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:22:26,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:22:26,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:26,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c95702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26, skipping insertion in model container [2023-12-03 04:22:26,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:26,740 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:22:26,881 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-12-03 04:22:26,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:22:26,901 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:22:26,948 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_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-12-03 04:22:26,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:22:26,965 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:22:26,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26 WrapperNode [2023-12-03 04:22:26,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:22:26,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:22:26,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:22:26,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:22:26,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:26,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,005 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-12-03 04:22:27,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:22:27,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:22:27,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:22:27,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:22:27,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,038 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:22:27,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:22:27,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:22:27,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:22:27,045 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:22:26" (1/1) ... [2023-12-03 04:22:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:22:27,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:22:27,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:22:27,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:22:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:22:27,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-12-03 04:22:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:22:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:22:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-12-03 04:22:27,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-12-03 04:22:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 04:22:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:22:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:22:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:22:27,187 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:22:27,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:22:27,388 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:22:27,466 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:22:27,466 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 04:22:27,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:22:27 BoogieIcfgContainer [2023-12-03 04:22:27,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:22:27,469 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:22:27,470 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:22:27,480 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:22:27,481 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:22:27" (1/1) ... [2023-12-03 04:22:27,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:22:27,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 04:22:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 04:22:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 04:22:27,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:27,557 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:27,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:27,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:27,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:22:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:27,746 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:22:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:27,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:22:27,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:22:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:22:27,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:22:27,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-12-03 04:22:27,830 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 04:22:27,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:22:27,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:27,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:27,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:27,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 04:22:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,082 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:22:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 04:22:28,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:22:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:22:28,182 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 04:22:28,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 04:22:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 27 transitions. [2023-12-03 04:22:28,280 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-12-03 04:22:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 04:22:28,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:28,281 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:28,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:28,282 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:28,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:22:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,446 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:22:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:22:28,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:22:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:22:28,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 04:22:28,479 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 04:22:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 25 transitions. [2023-12-03 04:22:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-12-03 04:22:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 04:22:28,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:28,488 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:28,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:28,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:28,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 04:22:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,816 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:22:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:28,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 04:22:28,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:22:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:22:31,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 04:22:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 24 transitions. [2023-12-03 04:22:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-12-03 04:22:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 04:22:32,904 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:32,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:32,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:32,905 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:32,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 04:22:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:33,286 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:22:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:22:33,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 04:22:33,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:22:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 04:22:36,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 04:22:36,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:22:36,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 20 states and 20 transitions. [2023-12-03 04:22:36,873 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-12-03 04:22:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 04:22:36,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:22:36,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:22:36,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:22:36,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:22:36,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf4923e0-da6f-42b3-8511-1f57a8c8dc63/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 04:22:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:22:37,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:22:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat