./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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 bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:07:01,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:07:01,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:07:01,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:07:01,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:07:01,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:07:01,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:07:01,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:07:01,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:07:01,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:07:01,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:07:01,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:07:01,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:07:01,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:07:01,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:07:01,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:07:01,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:07:01,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:07:01,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:07:01,938 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:07:01,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:07:01,939 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:07:01,940 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:07:01,940 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:07:01,941 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:07:01,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:07:01,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:01,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:07:01,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:07:01,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:07:01,944 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:07:01,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:07:01,945 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:07:01,946 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2023-11-19 03:07:02,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:07:02,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:07:02,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:07:02,245 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:07:02,246 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:07:02,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2023-11-19 03:07:05,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:07:05,642 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:07:05,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c [2023-11-19 03:07:05,652 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/3f61e93ee/686d022fdde94445b9ff0ff446b4ef38/FLAG6e79e2ea1 [2023-11-19 03:07:05,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/3f61e93ee/686d022fdde94445b9ff0ff446b4ef38 [2023-11-19 03:07:05,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:07:05,671 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:07:05,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:05,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:07:05,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:07:05,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754a0a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05, skipping insertion in model container [2023-11-19 03:07:05,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:07:05,842 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2023-11-19 03:07:05,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:05,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:07:05,872 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2023-11-19 03:07:05,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:05,888 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:07:05,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05 WrapperNode [2023-11-19 03:07:05,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:05,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:05,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:07:05,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:07:05,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,921 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2023-11-19 03:07:05,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:05,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:07:05,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:07:05,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:07:05,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,933 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:07:05,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:07:05,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:07:05,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:07:05,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:05" (1/1) ... [2023-11-19 03:07:05,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:05,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:07:05,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:07:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:07:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:07:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:07:06,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:07:06,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:07:06,250 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:07:06,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:07:06,333 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:07:06,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:06 BoogieIcfgContainer [2023-11-19 03:07:06,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:07:06,339 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:07:06,340 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:07:06,351 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:07:06,351 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:06" (1/1) ... [2023-11-19 03:07:06,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:07:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:07:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:07:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:07:06,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:06,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:07:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:06,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:06,618 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:06,630 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:07:06,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:07:06 ImpRootNode [2023-11-19 03:07:06,651 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:07:06,651 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:07:06,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:07:06,652 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:07:06,652 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:06" (3/4) ... [2023-11-19 03:07:06,660 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:07:06,662 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:07:06,663 INFO L158 Benchmark]: Toolchain (without parser) took 991.76ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 89.4MB in the beginning and 150.8MB in the end (delta: -61.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:06,663 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:06,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.98ms. Allocated memory is still 134.2MB. Free memory was 89.0MB in the beginning and 78.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:07:06,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.39ms. Allocated memory is still 134.2MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:06,665 INFO L158 Benchmark]: Boogie Preprocessor took 20.20ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 76.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:07:06,666 INFO L158 Benchmark]: RCFGBuilder took 395.98ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 66.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:07:06,667 INFO L158 Benchmark]: CodeCheck took 311.37ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 66.0MB in the beginning and 151.2MB in the end (delta: -85.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:06,668 INFO L158 Benchmark]: Witness Printer took 10.32ms. Allocated memory is still 182.5MB. Free memory was 151.1MB in the beginning and 150.8MB in the end (delta: 354.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:06,671 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 26]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L6] double d = 0.0; [L15] int x = 2; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L20] CALL f1() [L10] d = 1.0 [L20] RET f1() [L22] d += (x == 2) [L24] d += (x > 3) VAL [x=2] [L26] COND TRUE !(d == 2.0) VAL [x=2] [L26] reach_error() VAL [x=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 134.2MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.98ms. Allocated memory is still 134.2MB. Free memory was 89.0MB in the beginning and 78.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.39ms. Allocated memory is still 134.2MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.20ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 76.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.98ms. Allocated memory is still 134.2MB. Free memory was 76.4MB in the beginning and 66.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 311.37ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 66.0MB in the beginning and 151.2MB in the end (delta: -85.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.32ms. Allocated memory is still 182.5MB. Free memory was 151.1MB in the beginning and 150.8MB in the end (delta: 354.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:07:06,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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 bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:07:09,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:07:09,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:07:09,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:07:09,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:07:09,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:07:09,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:07:09,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:07:09,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:07:09,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:07:09,518 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:07:09,519 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:07:09,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:07:09,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:07:09,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:07:09,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:07:09,523 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:07:09,523 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:07:09,524 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:07:09,525 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:07:09,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:07:09,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:07:09,526 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:07:09,527 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:07:09,527 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:07:09,528 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:09,528 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:07:09,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:07:09,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:09,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:07:09,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:07:09,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:07:09,531 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:07:09,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:09,532 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:07:09,532 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:07:09,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:07:09,533 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc84f7de0a9f57990dc33f292919523a52aa1e7a1c1eca24395d6b28aed01b7 [2023-11-19 03:07:09,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:07:09,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:07:09,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:07:09,999 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:07:10,000 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:07:10,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float3.c [2023-11-19 03:07:13,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:07:13,414 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:07:13,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c [2023-11-19 03:07:13,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/8f5cc3211/bbd5da2833b942a28f6382d75af1b8cc/FLAG40ac1852f [2023-11-19 03:07:13,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/data/8f5cc3211/bbd5da2833b942a28f6382d75af1b8cc [2023-11-19 03:07:13,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:07:13,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:07:13,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:13,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:07:13,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:07:13,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a96c957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13, skipping insertion in model container [2023-11-19 03:07:13,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,475 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:07:13,641 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2023-11-19 03:07:13,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:13,670 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:07:13,689 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_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2023-11-19 03:07:13,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:13,712 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:07:13,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13 WrapperNode [2023-11-19 03:07:13,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:13,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:13,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:07:13,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:07:13,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,756 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2023-11-19 03:07:13,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:13,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:07:13,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:07:13,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:07:13,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:07:13,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:07:13,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:07:13,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:07:13,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:13,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:07:13,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:07:13,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:07:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:07:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:07:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:07:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:07:14,059 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:07:14,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:07:15,069 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:07:15,184 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:07:15,184 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:07:15,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:15 BoogieIcfgContainer [2023-11-19 03:07:15,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:07:15,199 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:07:15,200 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:07:15,210 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:07:15,211 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:15" (1/1) ... [2023-11-19 03:07:15,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:07:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:15,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:07:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:07:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:07:15,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:15,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:15,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:07:15,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:07:15,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:07:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:07:15,596 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:07:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:07:15,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:07:15,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:07:16,206 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 03:07:16,209 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:07:16,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:07:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-19 03:07:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-19 03:07:16,594 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:07:16,594 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 03:07:16,603 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:07:16,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:07:16 ImpRootNode [2023-11-19 03:07:16,637 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:07:16,638 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:07:16,638 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:07:16,638 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:07:16,639 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:15" (3/4) ... [2023-11-19 03:07:16,641 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:07:16,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:07:16,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:07:16,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:07:16,649 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:07:16,731 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:07:16,732 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:07:16,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:07:16,733 INFO L158 Benchmark]: Toolchain (without parser) took 3289.60ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 66.7MB in the end (delta: -12.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-19 03:07:16,734 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:16,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.81ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 42.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:07:16,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.36ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:07:16,740 INFO L158 Benchmark]: Boogie Preprocessor took 51.65ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 40.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:16,741 INFO L158 Benchmark]: RCFGBuilder took 1386.77ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 40.2MB in the beginning and 66.0MB in the end (delta: -25.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:07:16,741 INFO L158 Benchmark]: CodeCheck took 1438.00ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 70.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:16,742 INFO L158 Benchmark]: Witness Printer took 94.05ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 66.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:07:16,745 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 4 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 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.81ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 42.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.36ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.65ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 40.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1386.77ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 40.2MB in the beginning and 66.0MB in the end (delta: -25.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 1438.00ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 70.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 94.05ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 66.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:07:16,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b5032c1-1ae8-4b29-81c4-2f8ab2642436/bin/ukojak-verify-G8NBE6pJGL/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 Writing output log to file Ultimate.log Result: TRUE