./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/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_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/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 64bit --witnessprinter.graph.data.programhash 2e2d16516f5b2c0cf17cd8ea179f437d06662e733ae19757c10d87ee0ea2bd8e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:56,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:56,136 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-24 22:16:56,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:56,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:56,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:56,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:56,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:56,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:56,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:56,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:56,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:56,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:56,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:56,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:56,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:56,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:56,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:56,173 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:56,174 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:56,174 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:56,175 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:56,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:56,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:56,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:56,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:56,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:56,177 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:56,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:56,178 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:56,179 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_efac127d-9855-4a80-afa6-9bb991dca6c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e2d16516f5b2c0cf17cd8ea179f437d06662e733ae19757c10d87ee0ea2bd8e [2023-11-24 22:16:56,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:56,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:56,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:56,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:56,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:56,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2023-11-24 22:16:59,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:59,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:59,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2023-11-24 22:17:00,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/f5dc0f4f0/47b727da13e34b09a7969e5520f08556/FLAG9dd6587e3 [2023-11-24 22:17:00,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/f5dc0f4f0/47b727da13e34b09a7969e5520f08556 [2023-11-24 22:17:00,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:00,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:00,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:00,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:00,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:00,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24293646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00, skipping insertion in model container [2023-11-24 22:17:00,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:00,297 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_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2023-11-24 22:17:00,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:00,545 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:00,558 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_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2023-11-24 22:17:00,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:00,691 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:00,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00 WrapperNode [2023-11-24 22:17:00,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:00,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:00,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:00,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:00,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,941 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1198 [2023-11-24 22:17:00,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:00,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:00,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:00,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:00,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:00,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:01,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:01,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:01,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:01,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:00" (1/1) ... [2023-11-24 22:17:01,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:01,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:01,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:01,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:17:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:17:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:17:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:01,405 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:01,408 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:02,857 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:04,940 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:04,940 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:17:04,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:04 BoogieIcfgContainer [2023-11-24 22:17:04,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:04,943 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:04,944 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:04,953 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:04,955 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:04" (1/1) ... [2023-11-24 22:17:04,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-24 22:17:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-24 22:17:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:17:05,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:12,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:17:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:17:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-24 22:17:25,293 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 22:17:25,297 INFO L158 Benchmark]: Toolchain (without parser) took 25259.39ms. Allocated memory was 178.3MB in the beginning and 585.1MB in the end (delta: 406.8MB). Free memory was 132.7MB in the beginning and 341.7MB in the end (delta: -209.0MB). Peak memory consumption was 199.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,298 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:17:25,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.24ms. Allocated memory is still 178.3MB. Free memory was 132.7MB in the beginning and 107.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 248.46ms. Allocated memory is still 178.3MB. Free memory was 107.0MB in the beginning and 133.8MB in the end (delta: -26.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,300 INFO L158 Benchmark]: Boogie Preprocessor took 171.07ms. Allocated memory is still 178.3MB. Free memory was 133.8MB in the beginning and 126.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,301 INFO L158 Benchmark]: RCFGBuilder took 3828.56ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 125.2MB in the beginning and 140.6MB in the end (delta: -15.4MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,301 INFO L158 Benchmark]: CodeCheck took 20351.92ms. Allocated memory was 237.0MB in the beginning and 585.1MB in the end (delta: 348.1MB). Free memory was 140.6MB in the beginning and 341.7MB in the end (delta: -201.1MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. [2023-11-24 22:17:25,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 68.4MB in the beginning and 68.3MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.24ms. Allocated memory is still 178.3MB. Free memory was 132.7MB in the beginning and 107.0MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 248.46ms. Allocated memory is still 178.3MB. Free memory was 107.0MB in the beginning and 133.8MB in the end (delta: -26.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 171.07ms. Allocated memory is still 178.3MB. Free memory was 133.8MB in the beginning and 126.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3828.56ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 125.2MB in the beginning and 140.6MB in the end (delta: -15.4MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. * CodeCheck took 20351.92ms. Allocated memory was 237.0MB in the beginning and 585.1MB in the end (delta: 348.1MB). Free memory was 140.6MB in the beginning and 341.7MB in the end (delta: -201.1MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 22:17:25,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/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_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/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 64bit --witnessprinter.graph.data.programhash 2e2d16516f5b2c0cf17cd8ea179f437d06662e733ae19757c10d87ee0ea2bd8e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:17:27,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:17:28,061 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-24 22:17:28,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:17:28,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:17:28,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:17:28,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:17:28,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:17:28,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:17:28,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:17:28,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:17:28,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:17:28,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:17:28,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:17:28,102 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:17:28,103 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:17:28,103 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:17:28,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:17:28,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:17:28,105 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:17:28,105 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:17:28,106 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:17:28,107 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:28,107 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:28,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:17:28,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:28,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:17:28,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:17:28,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:17:28,110 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:17:28,110 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:28,111 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:17:28,111 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:17:28,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:17:28,112 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_efac127d-9855-4a80-afa6-9bb991dca6c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e2d16516f5b2c0cf17cd8ea179f437d06662e733ae19757c10d87ee0ea2bd8e [2023-11-24 22:17:28,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:17:28,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:17:28,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:17:28,549 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:17:28,550 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:17:28,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2023-11-24 22:17:31,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:17:32,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:17:32,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2023-11-24 22:17:32,131 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/4f217c3db/2400e22ad879407c9dade6c1221e9059/FLAG2330452c8 [2023-11-24 22:17:32,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/data/4f217c3db/2400e22ad879407c9dade6c1221e9059 [2023-11-24 22:17:32,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:17:32,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:17:32,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:32,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:17:32,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:17:32,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:32,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdf53ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32, skipping insertion in model container [2023-11-24 22:17:32,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:32,247 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:17:32,476 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_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2023-11-24 22:17:32,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:32,764 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:17:32,777 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_efac127d-9855-4a80-afa6-9bb991dca6c5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2023-11-24 22:17:32,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:17:32,893 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:17:32,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32 WrapperNode [2023-11-24 22:17:32,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:17:32,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:32,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:17:32,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:17:32,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:32,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,042 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 429 [2023-11-24 22:17:33,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:17:33,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:17:33,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:17:33,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:17:33,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:17:33,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:17:33,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:17:33,144 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:17:33,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:17:32" (1/1) ... [2023-11-24 22:17:33,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:17:33,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:17:33,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:17:33,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:17:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:17:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:17:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:17:33,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:17:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:17:33,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:17:33,449 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:17:33,452 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:17:34,034 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:17:34,101 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:17:34,102 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:17:34,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:34 BoogieIcfgContainer [2023-11-24 22:17:34,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:17:34,105 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:17:34,105 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:17:34,115 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:17:34,116 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:17:34" (1/1) ... [2023-11-24 22:17:34,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:17:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-24 22:17:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-24 22:17:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:17:34,212 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:34,213 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:34,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:34,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:34,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:17:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:34,578 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:34,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-24 22:17:34,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:35,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:17:35,302 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:17:35,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 22:17:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:35,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-24 22:17:35,725 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-24 22:17:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:17:35,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:35,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:35,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:35,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:35,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:17:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:36,249 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:36,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 22:17:36,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 22:17:37,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:17:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-24 22:17:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-24 22:17:39,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 22:17:39,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:39,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:39,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:39,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:39,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:17:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:40,413 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:40,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-24 22:17:40,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:17:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-24 22:17:41,647 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:17:41,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-24 22:17:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 57 transitions. [2023-11-24 22:17:45,248 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2023-11-24 22:17:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 22:17:45,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:45,251 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:17:45,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:17:45,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:17:45,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efac127d-9855-4a80-afa6-9bb991dca6c5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:17:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:46,070 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:17:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:46,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-24 22:17:46,472 INFO L285 TraceCheckSpWp]: Computing forward predicates...