./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:40,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:40,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:10:40,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:10:40,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:10:40,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:40,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:40,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:40,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:40,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:40,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:40,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:40,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:40,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:10:40,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:40,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:40,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:40,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:40,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:40,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:40,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:40,264 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:40,264 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:40,265 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:40,265 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:40,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:40,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:40,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:40,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:40,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:40,268 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:10:40,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:10:40,269 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:40,269 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2023-11-24 22:10:40,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:40,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:40,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:40,568 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:40,569 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:40,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-24 22:10:43,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:43,898 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:43,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-24 22:10:43,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/77dc32179/1012b1930b074d3ba0b8da53b31bde92/FLAGace346adf [2023-11-24 22:10:43,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/77dc32179/1012b1930b074d3ba0b8da53b31bde92 [2023-11-24 22:10:43,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:43,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:43,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:43,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:43,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:43,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:43" (1/1) ... [2023-11-24 22:10:43,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dee51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:43, skipping insertion in model container [2023-11-24 22:10:43,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:43" (1/1) ... [2023-11-24 22:10:44,019 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:44,307 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-24 22:10:44,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:44,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:44,409 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-24 22:10:44,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:44,455 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:44,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44 WrapperNode [2023-11-24 22:10:44,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:44,457 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:44,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:44,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:44,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,509 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-24 22:10:44,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:44,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:44,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:44,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:44,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:44,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:44,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:44,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:44,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:44" (1/1) ... [2023-11-24 22:10:44,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:44,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:44,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:44,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:10:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:44,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 22:10:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:10:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:10:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:44,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:10:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 22:10:44,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 22:10:44,773 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:44,775 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:10:45,309 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:10:45,489 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:10:45,489 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 22:10:45,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:45 BoogieIcfgContainer [2023-11-24 22:10:45,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:10:45,492 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:10:45,494 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:10:45,504 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:10:45,505 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:45" (1/1) ... [2023-11-24 22:10:45,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:45,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 74 states and 122 transitions. [2023-11-24 22:10:45,592 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 122 transitions. [2023-11-24 22:10:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:10:45,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:10:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2023-11-24 22:10:45,847 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2023-11-24 22:10:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:10:45,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:46,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:46,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:46,329 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:10:46,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:10:46 ImpRootNode [2023-11-24 22:10:46,378 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:10:46,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:10:46,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:10:46,379 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:10:46,380 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:45" (3/4) ... [2023-11-24 22:10:46,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:10:46,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:10:46,386 INFO L158 Benchmark]: Toolchain (without parser) took 2432.69ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 78.9MB in the end (delta: 45.8MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,387 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:46,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.80ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 110.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.18ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,390 INFO L158 Benchmark]: Boogie Preprocessor took 48.29ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 105.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,391 INFO L158 Benchmark]: RCFGBuilder took 932.61ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 112.4MB in the end (delta: -7.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,396 INFO L158 Benchmark]: CodeCheck took 885.82ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 78.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-24 22:10:46,397 INFO L158 Benchmark]: Witness Printer took 6.33ms. Allocated memory is still 167.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:46,404 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, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 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, 20 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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: 236]: 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 someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = 1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L233] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=2, \old(y)=3, a=2, b=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L88] ieee_float_shape_type gf_u; [L89] EXPR gf_u.value = (x) [L90] EXPR gf_u.word [L90] EXPR (ha) = gf_u.word [L87-L91] { ieee_float_shape_type gf_u; gf_u.value = (x); (ha) = gf_u.word; } VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L92] ha &= 0x7fffffffL VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L94] ieee_float_shape_type gf_u; [L95] EXPR gf_u.value = (y) [L96] EXPR gf_u.word [L96] EXPR (hb) = gf_u.word [L93-L97] { ieee_float_shape_type gf_u; gf_u.value = (y); (hb) = gf_u.word; } VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, hb=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L98] hb &= 0x7fffffffL [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=2, \old(y)=3, a=3, b=2, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L110] ieee_float_shape_type sf_u; [L111] EXPR sf_u.word = (ha) [L112] EXPR sf_u.value [L112] EXPR (a) = sf_u.value [L109-L113] { ieee_float_shape_type sf_u; sf_u.word = (ha); (a) = sf_u.value; } VAL [\old(x)=2, \old(y)=3, a=15, b=2, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L115] ieee_float_shape_type sf_u; [L116] EXPR sf_u.word = (hb) [L117] EXPR sf_u.value [L117] EXPR (b) = sf_u.value [L114-L118] { ieee_float_shape_type sf_u; sf_u.word = (hb); (b) = sf_u.value; } VAL [\old(x)=2, \old(y)=3, a=15, b=8, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=2, \old(y)=3, a=15, b=8, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L233] RET, EXPR __ieee754_hypotf(x, y) [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=6, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6] [L216] ieee_float_shape_type gf_u; [L217] EXPR gf_u.value = (x) [L218] EXPR gf_u.word [L218] EXPR (ix) = gf_u.word [L215-L219] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=6, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6] [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, res=6, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 98.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.80ms. Allocated memory is still 167.8MB. Free memory was 124.1MB in the beginning and 110.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.18ms. Allocated memory is still 167.8MB. Free memory was 110.0MB in the beginning and 107.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.29ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 105.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 932.61ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 112.4MB in the end (delta: -7.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * CodeCheck took 885.82ms. Allocated memory is still 167.8MB. Free memory was 112.4MB in the beginning and 78.9MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 6.33ms. Allocated memory is still 167.8MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:10:46,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:49,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:49,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:10:49,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:49,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:49,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:49,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:49,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:49,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:49,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:49,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:49,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:49,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:49,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:49,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:49,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:49,358 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:10:49,359 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:10:49,359 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:10:49,360 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:49,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:49,361 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:49,362 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:49,362 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:49,363 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:49,363 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:49,364 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:49,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:49,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:49,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:49,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:49,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:49,367 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:10:49,367 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:49,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:49,368 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:10:49,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:49,368 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cef5793fe43b7ac201f8ba74ab73acc606c8d546b5c039af9ee3552505a25b3c [2023-11-24 22:10:49,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:49,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:49,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:49,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:49,858 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:49,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-24 22:10:53,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:53,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:53,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c [2023-11-24 22:10:53,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/ea815af90/4bd57a33406247688223860e8583cba1/FLAG3698a074e [2023-11-24 22:10:53,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/data/ea815af90/4bd57a33406247688223860e8583cba1 [2023-11-24 22:10:53,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:53,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:53,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:53,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:53,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:53,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e25b260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53, skipping insertion in model container [2023-11-24 22:10:53,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:53,675 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-24 22:10:53,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:53,717 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:53,830 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_f027f4ba-1a86-4a97-9320-9bb65ac100ea/sv-benchmarks/c/float-newlib/float_req_bl_1270a.c[4702,4715] [2023-11-24 22:10:53,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:53,850 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:53,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53 WrapperNode [2023-11-24 22:10:53,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:53,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:53,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:53,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:53,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,916 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-24 22:10:53,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:53,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:53,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:53,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:53,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:53,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:53,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:53,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:53,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:53,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:53" (1/1) ... [2023-11-24 22:10:54,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:54,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:54,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:10:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 22:10:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:10:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:54,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:10:54,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:10:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 22:10:54,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 22:10:54,288 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:54,291 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:10:58,302 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:10:58,387 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:10:58,388 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 22:10:58,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:58 BoogieIcfgContainer [2023-11-24 22:10:58,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:10:58,391 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:10:58,391 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:10:58,401 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:10:58,401 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:58" (1/1) ... [2023-11-24 22:10:58,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:58,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 72 states and 119 transitions. [2023-11-24 22:10:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 119 transitions. [2023-11-24 22:10:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:10:58,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:58,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:58,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:58,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:58,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:10:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:58,746 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:10:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:58,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:10:58,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:10:58,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:58,837 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:10:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2023-11-24 22:10:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2023-11-24 22:10:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:10:59,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:59,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:59,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:59,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:10:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,669 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:10:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-24 22:10:59,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:59,900 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:10:59,902 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-24 22:11:00,456 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 11 treesize of output 7 [2023-11-24 22:11:01,049 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-24 22:11:01,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 31 [2023-11-24 22:11:03,233 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-24 22:11:03,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 59 [2023-11-24 22:11:03,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:11:03,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 51 [2023-11-24 22:11:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:04,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:09,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:11:16,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.26s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:11:29,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:11:39,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:11:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 77 states and 120 transitions. [2023-11-24 22:11:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 120 transitions. [2023-11-24 22:11:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:11:40,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:40,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:40,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:40,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:40,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:11:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:40,924 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:41,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 22:11:41,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:41,061 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:11:41,062 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-24 22:11:41,519 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 11 treesize of output 7 [2023-11-24 22:11:41,952 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-24 22:11:41,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 31 [2023-11-24 22:11:43,230 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-24 22:11:43,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 59 [2023-11-24 22:11:43,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:11:43,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 51 [2023-11-24 22:11:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:43,624 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:43,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-24 22:11:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 77 states and 120 transitions. [2023-11-24 22:11:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 120 transitions. [2023-11-24 22:11:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:11:43,675 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:43,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:43,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:43,677 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:43,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f027f4ba-1a86-4a97-9320-9bb65ac100ea/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:11:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:44,311 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:44,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-24 22:11:44,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:44,437 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:11:44,437 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-24 22:11:44,889 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 11 treesize of output 7