./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.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_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/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_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/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_5e76922a-abe5-43fc-bc3a-19336635ce5f/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 cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:37,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:37,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:16:37,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:37,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:37,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:37,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:37,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:37,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:37,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:37,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:37,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:37,443 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:16:37,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:37,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:16:37,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:37,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:37,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:37,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:37,449 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:16:37,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:37,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:37,451 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:37,452 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:37,452 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:37,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:37,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:37,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:37,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:37,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:37,456 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:37,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:37,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:37,457 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 [2023-11-24 22:16:37,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:37,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:37,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:37,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:37,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:37,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2023-11-24 22:16:41,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:41,511 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:41,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2023-11-24 22:16:41,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/b918f1f52/6d7011f35ef7476e8cef209fe6a3ff45/FLAG78830c6f3 [2023-11-24 22:16:41,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/b918f1f52/6d7011f35ef7476e8cef209fe6a3ff45 [2023-11-24 22:16:41,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:41,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:41,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:41,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:41,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:41,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcdef94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41, skipping insertion in model container [2023-11-24 22:16:41,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:41,779 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2023-11-24 22:16:41,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:41,805 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:41,823 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2023-11-24 22:16:41,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:41,850 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:41,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41 WrapperNode [2023-11-24 22:16:41,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:41,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:41,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:41,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:41,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,886 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-11-24 22:16:41,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:41,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:41,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:41,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:41,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:41,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:41,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:41,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:41,914 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:41" (1/1) ... [2023-11-24 22:16:41,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:41,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:41,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:41,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:16:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:16:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:42,074 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:42,076 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:42,201 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:42,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:42,238 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:16:42,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:42 BoogieIcfgContainer [2023-11-24 22:16:42,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:42,241 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:42,242 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:42,260 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:42,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:42" (1/1) ... [2023-11-24 22:16:42,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 22:16:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 22:16:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:16:42,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:42,556 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 22:16:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:42,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-24 22:16:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-24 22:16:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:16:42,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:42,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:16:42,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:16:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:16:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:16:42,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:16:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:16:42,817 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:16:42,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:16:42 ImpRootNode [2023-11-24 22:16:42,862 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:16:42,863 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:16:42,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:16:42,864 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:16:42,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:42" (3/4) ... [2023-11-24 22:16:42,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:16:42,869 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:16:42,871 INFO L158 Benchmark]: Toolchain (without parser) took 1317.00ms. Allocated memory is still 165.7MB. Free memory was 135.8MB in the beginning and 97.2MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,872 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:16:42,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.57ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 125.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.89ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 123.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,876 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 165.7MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,877 INFO L158 Benchmark]: RCFGBuilder took 327.47ms. Allocated memory is still 165.7MB. Free memory was 122.4MB in the beginning and 112.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,878 INFO L158 Benchmark]: CodeCheck took 620.52ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 97.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,884 INFO L158 Benchmark]: Witness Printer took 6.64ms. Allocated memory is still 165.7MB. Free memory was 97.6MB in the beginning and 97.2MB in the end (delta: 389.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:42,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 30 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 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: 14]: 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 37, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L20] float x = __VERIFIER_nondet_float() ; [L21] float exp = 1.0 ; [L22] float term = 1.0 ; [L23] unsigned int count = 1 ; [L24] float result = 2*(1/(1-x)) ; [L25] int temp ; VAL [count=1, exp=1, term=1] [L27] COND TRUE 1 [L29] term = term * (x/count) [L30] exp = exp + term [L31] count++ [L33] temp = __VERIFIER_nondet_int() [L34] COND TRUE temp ==0 VAL [count=2, temp=0] [L37] CALL __VERIFIER_assert( result >= exp ) [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L14] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.57ms. Allocated memory is still 165.7MB. Free memory was 135.4MB in the beginning and 125.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.89ms. Allocated memory is still 165.7MB. Free memory was 125.0MB in the beginning and 123.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 165.7MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.47ms. Allocated memory is still 165.7MB. Free memory was 122.4MB in the beginning and 112.5MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 620.52ms. Allocated memory is still 165.7MB. Free memory was 112.5MB in the beginning and 97.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.64ms. Allocated memory is still 165.7MB. Free memory was 97.6MB in the beginning and 97.2MB in the end (delta: 389.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:16:42,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/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_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/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_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/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_5e76922a-abe5-43fc-bc3a-19336635ce5f/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 cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:45,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:46,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:16:46,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:46,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:46,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:46,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:46,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:46,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:46,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:46,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:16:46,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:16:46,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:46,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:46,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:46,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:46,088 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:16:46,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:16:46,089 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:16:46,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:16:46,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:46,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:46,091 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:46,091 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:46,091 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:46,092 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:46,092 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:16:46,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:46,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:46,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:46,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:46,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:46,096 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:16:46,096 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:46,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:46,097 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:16:46,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:16:46,097 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6c31757d65ac3409144284524de01d782484107762f8e5c588ca3f4aed3437 [2023-11-24 22:16:46,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:46,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:46,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:46,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:46,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:46,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2023-11-24 22:16:49,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:50,131 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:50,132 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c [2023-11-24 22:16:50,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/fb13f3fb5/4dd55e91fd0649359356a9ba4ec2f4e9/FLAG9f52fc6e4 [2023-11-24 22:16:50,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/data/fb13f3fb5/4dd55e91fd0649359356a9ba4ec2f4e9 [2023-11-24 22:16:50,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:50,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:50,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:50,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:50,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:50,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25277406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50, skipping insertion in model container [2023-11-24 22:16:50,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:50,419 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2023-11-24 22:16:50,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:50,456 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:50,475 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_5e76922a-abe5-43fc-bc3a-19336635ce5f/sv-benchmarks/c/loop-floats-scientific-comp/loop1-2.c[538,551] [2023-11-24 22:16:50,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:50,513 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:50,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50 WrapperNode [2023-11-24 22:16:50,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:50,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:50,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:50,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:50,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,575 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-11-24 22:16:50,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:50,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:50,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:50,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:50,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,611 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:50,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:50,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:50,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:50,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:50" (1/1) ... [2023-11-24 22:16:50,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:50,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:50,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:50,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:16:50,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:16:50,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:50,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:50,759 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:50,762 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:04,406 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:04,459 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:04,462 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:17:04,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:04 BoogieIcfgContainer [2023-11-24 22:17:04,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:04,465 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:04,466 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:04,476 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:04,476 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:04" (1/1) ... [2023-11-24 22:17:04,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 22:17:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 22:17:04,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:17:04,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:04,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:04,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:04,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:04,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:17:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:04,736 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:04,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:17:04,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:04,804 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 22:17:04,807 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:17:04,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:17:06,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 22:17:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:06,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-24 22:17:06,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-24 22:17:06,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:17:06,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:06,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:06,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:06,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e76922a-abe5-43fc-bc3a-19336635ce5f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:17:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:07,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat