./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL --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 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:09:05,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:09:05,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:09:05,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:09:05,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:09:05,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:09:05,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:09:05,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:09:05,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:09:05,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:09:05,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:09:05,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:09:05,403 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:09:05,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:09:05,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:09:05,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:09:05,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:09:05,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:09:05,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:09:05,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:09:05,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:09:05,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:09:05,409 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:09:05,409 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:09:05,410 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:09:05,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:09:05,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:05,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:09:05,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:09:05,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:09:05,412 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:09:05,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:09:05,413 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:09:05,413 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2023-11-19 03:09:05,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:09:05,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:09:05,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:09:05,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:09:05,708 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:09:05,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/interpolation.c [2023-11-19 03:09:08,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:09:09,156 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:09:09,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c [2023-11-19 03:09:09,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/1fbfd6d8a/826ac62c8ebe4db39fb298995a305c0b/FLAG7a5eb27a1 [2023-11-19 03:09:09,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/1fbfd6d8a/826ac62c8ebe4db39fb298995a305c0b [2023-11-19 03:09:09,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:09:09,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:09:09,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:09,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:09:09,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:09:09,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ee1135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09, skipping insertion in model container [2023-11-19 03:09:09,199 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:09:09,357 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2023-11-19 03:09:09,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:09,386 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:09:09,396 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2023-11-19 03:09:09,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:09,422 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:09:09,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09 WrapperNode [2023-11-19 03:09:09,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:09,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:09,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:09:09,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:09:09,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,471 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-19 03:09:09,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:09,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:09:09,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:09:09,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:09:09,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:09:09,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:09:09,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:09:09,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:09:09,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:09,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:09:09,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:09:09,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:09:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:09:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:09:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:09:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 03:09:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:09:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:09:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 03:09:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:09:09,650 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:09:09,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:09:09,806 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:09:09,883 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:09:09,883 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:09:09,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:09 BoogieIcfgContainer [2023-11-19 03:09:09,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:09:09,889 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:09:09,889 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:09:09,901 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:09:09,901 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:09" (1/1) ... [2023-11-19 03:09:09,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:09:09,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 03:09:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 03:09:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:09:09,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:09,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:10,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-19 03:09:10,353 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-19 03:09:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:09:10,353 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:10,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:10,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:09:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:10,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:09:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:09:10,471 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:09:10,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated [2023-11-19 03:09:10,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:09:10 ImpRootNode [2023-11-19 03:09:10,497 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:09:10,498 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:09:10,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:09:10,498 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:09:10,498 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:09" (3/4) ... [2023-11-19 03:09:10,501 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:09:10,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:09:10,503 INFO L158 Benchmark]: Toolchain (without parser) took 1321.34ms. Allocated memory is still 165.7MB. Free memory was 134.9MB in the beginning and 83.8MB in the end (delta: 51.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-19 03:09:10,503 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 88.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:10,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.75ms. Allocated memory is still 165.7MB. Free memory was 134.9MB in the beginning and 123.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:09:10,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.08ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 122.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:10,505 INFO L158 Benchmark]: Boogie Preprocessor took 33.29ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 120.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:10,506 INFO L158 Benchmark]: RCFGBuilder took 381.30ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 106.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:09:10,507 INFO L158 Benchmark]: CodeCheck took 608.38ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 83.8MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 03:09:10,507 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 165.7MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:09:10,511 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 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, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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: 9]: 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 26, overapproximation of to_real at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 24. Possible FailurePath: [L13] int i; [L14] float z, t; [L15] float min[] = { 5, 10, 12, 30, 150 }; [L16] float max[] = { 10, 12, 30, 150, 300 }; [L18] t = __VERIFIER_nondet_float() [L19] EXPR min[0] [L19] EXPR t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L19] EXPR max[sizeof(max) / sizeof(max[0]) - 1] [L19] EXPR t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L19] CALL assume_abort_if_not(t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1]) [L7] COND FALSE !(!cond) [L19] RET assume_abort_if_not(t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1]) [L21] i = 0 VAL [i=0, max={8407:0}, min={8406:0}] [L21] COND TRUE i < sizeof(min) / sizeof(min[0]) [L22] EXPR max[i] VAL [i=0, max={8407:0}, min={8406:0}] [L22] COND TRUE t <= max[i] [L24] EXPR min[i] [L24] EXPR max[i] [L24] EXPR min[i] [L24] z = (t - min[i]) / (max[i] - min[i]) [L26] CALL __VERIFIER_assert(z >= 0.f && z <= 1.f) [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 130.0MB. Free memory was 88.6MB in the beginning and 88.4MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.75ms. Allocated memory is still 165.7MB. Free memory was 134.9MB in the beginning and 123.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.08ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 122.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.29ms. Allocated memory is still 165.7MB. Free memory was 121.9MB in the beginning and 120.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.30ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 106.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 608.38ms. Allocated memory is still 165.7MB. Free memory was 106.0MB in the beginning and 83.8MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 165.7MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:09:10,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL --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 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:09:13,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:09:13,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:09:13,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:09:13,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:09:13,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:09:13,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:09:13,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:09:13,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:09:13,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:09:13,533 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:09:13,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:09:13,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:09:13,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:09:13,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:09:13,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:09:13,537 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:09:13,538 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:09:13,538 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:09:13,539 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:09:13,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:09:13,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:09:13,541 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:09:13,542 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:09:13,542 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:09:13,543 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:13,543 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:09:13,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:09:13,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:13,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:09:13,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:09:13,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:09:13,547 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:09:13,548 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:13,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:09:13,548 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:09:13,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:09:13,549 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2023-11-19 03:09:14,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:09:14,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:09:14,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:09:14,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:09:14,057 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:09:14,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/interpolation.c [2023-11-19 03:09:17,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:09:17,612 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:09:17,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c [2023-11-19 03:09:17,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/59a840b8b/23bfddf11eae4c27859e2ffa151e4793/FLAG27137d96f [2023-11-19 03:09:17,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/data/59a840b8b/23bfddf11eae4c27859e2ffa151e4793 [2023-11-19 03:09:17,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:09:17,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:09:17,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:17,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:09:17,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:09:17,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:17,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5665885c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17, skipping insertion in model container [2023-11-19 03:09:17,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:17,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:09:17,874 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2023-11-19 03:09:17,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:17,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:09:17,939 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_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2023-11-19 03:09:17,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:09:17,995 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:09:17,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17 WrapperNode [2023-11-19 03:09:17,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:09:17,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:17,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:09:17,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:09:18,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,063 INFO L138 Inliner]: procedures = 19, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-11-19 03:09:18,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:09:18,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:09:18,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:09:18,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:09:18,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,118 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:09:18,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:09:18,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:09:18,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:09:18,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:09:17" (1/1) ... [2023-11-19 03:09:18,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:09:18,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:09:18,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:09:18,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:09:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:09:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 03:09:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:09:18,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:09:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 03:09:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:09:18,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:09:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:09:18,305 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:09:18,308 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:09:20,720 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:09:20,875 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:09:20,876 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:09:20,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:20 BoogieIcfgContainer [2023-11-19 03:09:20,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:09:20,885 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:09:20,885 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:09:20,897 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:09:20,897 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:09:20" (1/1) ... [2023-11-19 03:09:20,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:09:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 03:09:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 03:09:20,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:09:20,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:20,984 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:20,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:20,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:20,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:09:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:21,226 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:21,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:21,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:21,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:21,470 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:09:21,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:09:21,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-19 03:09:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-19 03:09:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:09:21,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:21,574 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:09:21,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:09:21,576 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:09:21,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:09:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:22,605 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:09:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:28,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 03:09:28,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:30,671 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 03:09:30,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 390 treesize of output 190 [2023-11-19 03:09:45,024 WARN L293 SmtUtils]: Spent 9.57s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-19 03:09:51,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:51,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1dfdf2a-aa3b-4d59-8cf3-3300d428b43e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:09:56,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:09:58,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:10:00,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:10:08,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 03:10:11,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []