./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Float_div.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Float_div.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe4b2ac8b2a0e269dd16c91161494638306526c517de7ea644739142e1210da9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:54:29,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:54:30,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:54:30,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:54:30,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:54:30,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:54:30,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:54:30,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:54:30,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:54:30,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:54:30,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:54:30,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:54:30,111 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:54:30,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:54:30,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:54:30,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:54:30,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:54:30,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:54:30,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:54:30,115 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:54:30,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:54:30,116 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:54:30,116 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:54:30,117 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:54:30,117 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:54:30,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:54:30,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:30,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:54:30,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:54:30,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:54:30,120 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:54:30,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:54:30,121 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:54:30,121 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe4b2ac8b2a0e269dd16c91161494638306526c517de7ea644739142e1210da9 [2023-11-24 22:54:30,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:54:30,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:54:30,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:54:30,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:54:30,390 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:54:30,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-esbmc-regression/Float_div.i [2023-11-24 22:54:33,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:54:33,878 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:54:33,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i [2023-11-24 22:54:33,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/7c1834520/dd11de9259f8409987fe7eb4a399e822/FLAG5d7f7fea7 [2023-11-24 22:54:33,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/7c1834520/dd11de9259f8409987fe7eb4a399e822 [2023-11-24 22:54:33,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:54:33,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:54:33,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:33,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:54:33,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:54:33,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:33" (1/1) ... [2023-11-24 22:54:33,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6ad40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:33, skipping insertion in model container [2023-11-24 22:54:33,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:33" (1/1) ... [2023-11-24 22:54:33,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:54:34,099 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i[803,816] [2023-11-24 22:54:34,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:34,122 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:54:34,136 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i[803,816] [2023-11-24 22:54:34,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:34,150 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:54:34,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34 WrapperNode [2023-11-24 22:54:34,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:34,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:34,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:54:34,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:54:34,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,185 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-11-24 22:54:34,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:34,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:54:34,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:54:34,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:54:34,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:54:34,226 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:54:34,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:54:34,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:54:34,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:34,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:54:34,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:54:34,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:54:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:54:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:54:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:54:34,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:54:34,361 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:54:34,363 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:54:34,440 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:54:34,490 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:54:34,490 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:54:34,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:34 BoogieIcfgContainer [2023-11-24 22:54:34,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:54:34,493 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:54:34,493 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:54:34,501 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:54:34,501 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:34" (1/1) ... [2023-11-24 22:54:34,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:54:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 22:54:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 22:54:34,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:54:34,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:34,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:54:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:54:34,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:54:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:54:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:54:34,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:54:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:54:34,818 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:54:34,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:54:34 ImpRootNode [2023-11-24 22:54:34,841 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:54:34,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:54:34,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:54:34,842 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:54:34,843 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:34" (3/4) ... [2023-11-24 22:54:34,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:54:34,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:54:34,848 INFO L158 Benchmark]: Toolchain (without parser) took 943.18ms. Allocated memory is still 151.0MB. Free memory was 112.0MB in the beginning and 77.7MB in the end (delta: 34.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 22:54:34,848 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:54:34,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.83ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 101.5MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:54:34,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.38ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:54:34,852 INFO L158 Benchmark]: Boogie Preprocessor took 38.83ms. Allocated memory is still 151.0MB. Free memory was 100.0MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:54:34,853 INFO L158 Benchmark]: RCFGBuilder took 266.12ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 89.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:54:34,855 INFO L158 Benchmark]: CodeCheck took 348.28ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 78.1MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:54:34,856 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 77.7MB in the end (delta: 373.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:54:34,866 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 4 NumberOfCodeBlocks, 4 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: 13]: 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 23, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L20] float x = 1.0f; [L21] float x1 = x/2.5f; VAL [x=1] [L23] COND FALSE !(x1 != x) [L29] CALL __VERIFIER_assert(x == 0) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.83ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 101.5MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.38ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 100.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.83ms. Allocated memory is still 151.0MB. Free memory was 100.0MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.12ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 89.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 348.28ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 78.1MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 77.7MB in the end (delta: 373.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:54:34,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Float_div.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe4b2ac8b2a0e269dd16c91161494638306526c517de7ea644739142e1210da9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:54:37,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:54:37,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:54:37,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:54:37,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:54:37,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:54:37,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:54:37,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:54:37,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:54:37,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:54:37,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:54:37,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:54:37,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:54:37,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:54:37,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:54:37,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:54:37,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:54:37,726 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:54:37,726 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:54:37,726 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:54:37,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:54:37,727 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:54:37,728 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:54:37,728 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:54:37,729 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:54:37,729 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:37,730 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:54:37,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:54:37,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:37,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:54:37,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:54:37,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:54:37,733 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:54:37,733 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:37,734 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:54:37,734 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:54:37,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:54:37,735 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe4b2ac8b2a0e269dd16c91161494638306526c517de7ea644739142e1210da9 [2023-11-24 22:54:38,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:54:38,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:54:38,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:54:38,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:54:38,182 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:54:38,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-esbmc-regression/Float_div.i [2023-11-24 22:54:41,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:54:41,654 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:54:41,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i [2023-11-24 22:54:41,663 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/2baa612e3/30653eefc6d3474dbd1e852432db9f5b/FLAG741da0493 [2023-11-24 22:54:41,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/data/2baa612e3/30653eefc6d3474dbd1e852432db9f5b [2023-11-24 22:54:41,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:54:41,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:54:41,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:41,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:54:41,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:54:41,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6690d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41, skipping insertion in model container [2023-11-24 22:54:41,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,712 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:54:41,859 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i[803,816] [2023-11-24 22:54:41,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:41,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:54:41,900 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_7c1fc010-28be-476a-ba20-ba26658cd6a6/sv-benchmarks/c/floats-esbmc-regression/Float_div.i[803,816] [2023-11-24 22:54:41,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:54:41,920 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:54:41,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41 WrapperNode [2023-11-24 22:54:41,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:54:41,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:41,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:54:41,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:54:41,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,957 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-24 22:54:41,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:54:41,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:54:41,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:54:41,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:54:41,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:41,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:54:41,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:54:41,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:54:42,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:54:42,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:54:41" (1/1) ... [2023-11-24 22:54:42,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:54:42,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:54:42,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:54:42,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:54:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:54:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:54:42,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:54:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:54:42,182 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:54:42,184 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:54:42,733 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:54:42,766 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:54:42,766 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:54:42,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:42 BoogieIcfgContainer [2023-11-24 22:54:42,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:54:42,769 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:54:42,769 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:54:42,784 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:54:42,784 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:54:42" (1/1) ... [2023-11-24 22:54:42,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:54:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 22:54:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 22:54:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:54:42,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:42,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:42,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:54:42,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:54:42,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:54:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:43,117 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:54:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:43,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:54:43,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:44,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:54:44,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:54:48,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:54:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:54:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-24 22:54:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-24 22:54:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:54:48,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:54:48,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:54:48,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:54:48,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:54:48,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:54:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:48,911 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:54:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:54:50,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 22:54:50,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:54:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:54:52,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:55:07,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:09,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:28,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:31,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:33,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2023-11-24 22:55:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2023-11-24 22:55:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:55:33,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:55:33,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:55:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:55:33,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:55:33,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c1fc010-28be-476a-ba20-ba26658cd6a6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:55:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:34,282 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:55:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:40,606 WARN L260 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 22:55:40,608 INFO L285 TraceCheckSpWp]: Computing forward predicates...