./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/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_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/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_2c00f720-0152-4cf0-940c-d8a2e42bf956/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 c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:17:39,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:17:39,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:17:39,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:17:39,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:17:39,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:17:39,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:17:39,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:17:39,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:17:39,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:17:39,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:17:39,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:17:39,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:17:39,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:17:39,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:17:39,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:17:39,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:17:39,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:17:39,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:17:39,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:17:39,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:17:39,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:17:39,330 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:17:39,330 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:17:39,331 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:17:39,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:17:39,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:17:39,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:17:39,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:17:39,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:17:39,333 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:17:39,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:17:39,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:17:39,334 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 [2023-12-03 03:17:39,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:17:39,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:17:39,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:17:39,557 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:17:39,557 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:17:39,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-12-03 03:17:42,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:17:42,437 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:17:42,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-12-03 03:17:42,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/6890ac85b/18706d69dc5242a9b70fef15491e3e52/FLAG4994af411 [2023-12-03 03:17:42,456 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/6890ac85b/18706d69dc5242a9b70fef15491e3e52 [2023-12-03 03:17:42,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:17:42,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:17:42,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:17:42,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:17:42,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:17:42,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c36709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42, skipping insertion in model container [2023-12-03 03:17:42,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,488 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:17:42,651 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-12-03 03:17:42,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:17:42,664 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:17:42,686 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-12-03 03:17:42,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:17:42,701 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:17:42,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42 WrapperNode [2023-12-03 03:17:42,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:17:42,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:17:42,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:17:42,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:17:42,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,733 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-12-03 03:17:42,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:17:42,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:17:42,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:17:42,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:17:42,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:17:42,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:17:42,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:17:42,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:17:42,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:42" (1/1) ... [2023-12-03 03:17:42,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:17:42,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:17:42,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:17:42,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:17:42,814 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-12-03 03:17:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-12-03 03:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-03 03:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:17:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 03:17:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:17:42,882 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:17:42,884 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:17:43,046 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:17:43,132 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:17:43,132 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 03:17:43,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:17:43 BoogieIcfgContainer [2023-12-03 03:17:43,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:17:43,135 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:17:43,135 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:17:43,145 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:17:43,146 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:17:43" (1/1) ... [2023-12-03 03:17:43,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:17:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-03 03:17:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-03 03:17:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:17:43,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:43,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:17:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:43,373 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 03:17:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-12-03 03:17:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-12-03 03:17:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:17:43,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:43,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:17:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:17:43,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:17:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:17:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:17:43,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:17:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:17:43,558 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 03:17:43,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-12-03 03:17:43,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-12-03 03:17:43,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:17:43 ImpRootNode [2023-12-03 03:17:43,587 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:17:43,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:17:43,588 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:17:43,588 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:17:43,588 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:17:43" (3/4) ... [2023-12-03 03:17:43,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:17:43,591 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:17:43,592 INFO L158 Benchmark]: Toolchain (without parser) took 1132.21ms. Allocated memory is still 123.7MB. Free memory was 92.8MB in the beginning and 77.8MB in the end (delta: 15.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-12-03 03:17:43,593 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:17:43,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.50ms. Allocated memory is still 123.7MB. Free memory was 92.6MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:17:43,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 123.7MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:17:43,594 INFO L158 Benchmark]: Boogie Preprocessor took 22.64ms. Allocated memory is still 123.7MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:17:43,595 INFO L158 Benchmark]: RCFGBuilder took 376.75ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 59.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 03:17:43,595 INFO L158 Benchmark]: CodeCheck took 451.74ms. Allocated memory is still 123.7MB. Free memory was 59.8MB in the beginning and 77.9MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:17:43,596 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 77.8MB in the end (delta: 67.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:17:43,599 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, 0.0s 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: 81]: 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 80, overapproximation of someUnaryFLOAToperation at line 76. Possible FailurePath: [L75] float x = 0.0f; [L76] float y = -0.0f; [L77] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L23] __uint32_t w; VAL [\old(x)=0, x=0] [L26] ieee_float_shape_type gf_u; [L27] EXPR gf_u.value = (x) [L28] EXPR gf_u.word [L28] EXPR (w) = gf_u.word [L25-L29] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=0, w=2147483647, x=0] [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; [L46] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=2, x=0, y=2] [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; VAL [\old(x)=0, \old(y)=2, \result=2, x=0, y=2] [L77] RET, EXPR fmax_float(x, y) [L77] float res = fmax_float(x, y); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=2, x=0, y=2] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] 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 0.19ms. Allocated memory is still 123.7MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.50ms. Allocated memory is still 123.7MB. Free memory was 92.6MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 123.7MB. Free memory was 81.3MB in the beginning and 80.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.64ms. Allocated memory is still 123.7MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.75ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 59.8MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 451.74ms. Allocated memory is still 123.7MB. Free memory was 59.8MB in the beginning and 77.9MB in the end (delta: -18.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 77.8MB in the end (delta: 67.6kB). 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~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 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 03:17:43,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/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_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/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_2c00f720-0152-4cf0-940c-d8a2e42bf956/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 c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:17:45,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:17:45,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 03:17:45,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:17:45,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:17:45,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:17:45,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:17:45,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:17:45,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:17:45,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:17:45,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:17:45,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:17:45,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:17:45,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:17:45,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:17:45,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:17:45,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:17:45,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:17:45,667 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:17:45,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:17:45,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:17:45,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:17:45,669 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:17:45,670 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:17:45,670 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:17:45,671 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:45,671 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:17:45,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:17:45,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:17:45,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:17:45,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:17:45,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:17:45,674 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:17:45,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:45,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:17:45,675 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:17:45,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:17:45,675 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 [2023-12-03 03:17:45,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:17:45,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:17:45,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:17:45,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:17:45,979 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:17:45,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-12-03 03:17:48,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:17:48,939 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:17:48,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-12-03 03:17:48,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/0ae5e2c68/b6f6359a3a5c456396e81b47e819728e/FLAG512c64c21 [2023-12-03 03:17:48,962 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/data/0ae5e2c68/b6f6359a3a5c456396e81b47e819728e [2023-12-03 03:17:48,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:17:48,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:17:48,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:17:48,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:17:48,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:17:48,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:17:48" (1/1) ... [2023-12-03 03:17:48,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69286ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:48, skipping insertion in model container [2023-12-03 03:17:48,973 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:17:48" (1/1) ... [2023-12-03 03:17:48,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:17:49,147 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-12-03 03:17:49,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:17:49,166 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:17:49,188 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_2c00f720-0152-4cf0-940c-d8a2e42bf956/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-12-03 03:17:49,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:17:49,207 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:17:49,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49 WrapperNode [2023-12-03 03:17:49,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:17:49,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:17:49,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:17:49,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:17:49,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,247 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-12-03 03:17:49,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:17:49,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:17:49,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:17:49,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:17:49,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,276 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:17:49,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:17:49,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:17:49,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:17:49,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:17:49,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:17:49,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:17:49,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:17:49,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:17:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:17:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:17:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-12-03 03:17:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-12-03 03:17:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 03:17:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:17:49,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:17:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-03 03:17:49,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:17:49,437 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:17:49,439 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:17:49,660 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:17:49,725 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:17:49,725 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-03 03:17:49,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:17:49 BoogieIcfgContainer [2023-12-03 03:17:49,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:17:49,728 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:17:49,728 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:17:49,738 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:17:49,738 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:17:49" (1/1) ... [2023-12-03 03:17:49,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:17:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-12-03 03:17:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-12-03 03:17:49,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:17:49,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:49,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:49,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:49,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:17:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:49,981 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:17:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 03:17:50,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:17:50,032 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 03:17:50,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:17:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:50,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-12-03 03:17:50,066 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 03:17:50,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:17:50,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:50,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:50,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:50,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:17:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,244 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:17:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 03:17:50,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:17:50,332 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 03:17:50,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:17:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 27 transitions. [2023-12-03 03:17:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-12-03 03:17:50,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:17:50,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:50,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:50,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:50,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 03:17:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,571 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:17:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 03:17:50,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:17:50,601 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 03:17:50,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 03:17:50,605 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Stream closed [2023-12-03 03:17:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 25 transitions. [2023-12-03 03:17:50,612 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-12-03 03:17:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:17:50,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:50,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:50,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 03:17:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,824 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:17:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:50,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 03:17:50,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:17:50,959 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 [2023-12-03 03:17:50,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-03 03:17:52,163 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 03:17:52,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 03:17:52,166 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 03:17:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 24 transitions. [2023-12-03 03:17:53,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-12-03 03:17:53,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 03:17:53,123 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:53,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:53,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:53,124 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:53,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 03:17:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:53,343 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:17:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:17:53,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 03:17:53,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:17:53,394 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 03:17:53,396 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-12-03 03:17:54,184 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 03:17:54,184 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-12-03 03:17:54,913 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 03:17:54,917 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 03:17:54,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 03:17:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:17:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 20 states and 20 transitions. [2023-12-03 03:17:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-12-03 03:17:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 03:17:55,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:17:55,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:17:55,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:17:55,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:17:55,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c00f720-0152-4cf0-940c-d8a2e42bf956/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 03:17:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:17:55,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:17:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat