./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9 --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 991227ded011df05607ddf06154b711e655314779d1a9962856918283d05f8e3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 05:00:34,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 05:00:34,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 05:00:34,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 05:00:34,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 05:00:34,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 05:00:34,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 05:00:34,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 05:00:34,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 05:00:34,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 05:00:34,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 05:00:34,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 05:00:34,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 05:00:34,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 05:00:34,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 05:00:34,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 05:00:34,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 05:00:34,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 05:00:34,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 05:00:34,582 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 05:00:34,583 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 05:00:34,584 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 05:00:34,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 05:00:34,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:00:34,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 05:00:34,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 05:00:34,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 05:00:34,587 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 05:00:34,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 05:00:34,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 05:00:34,588 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_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991227ded011df05607ddf06154b711e655314779d1a9962856918283d05f8e3 [2023-12-03 05:00:34,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 05:00:34,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 05:00:34,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 05:00:34,834 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 05:00:34,835 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 05:00:34,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c [2023-12-03 05:00:37,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 05:00:38,251 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 05:00:38,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c [2023-12-03 05:00:38,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/8c60a7113/88c3dadec9324c35810ef1b1cba32d53/FLAG2693ff7ec [2023-12-03 05:00:38,318 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/8c60a7113/88c3dadec9324c35810ef1b1cba32d53 [2023-12-03 05:00:38,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 05:00:38,322 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 05:00:38,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 05:00:38,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 05:00:38,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 05:00:38,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:00:38" (1/1) ... [2023-12-03 05:00:38,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6381aa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:38, skipping insertion in model container [2023-12-03 05:00:38,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:00:38" (1/1) ... [2023-12-03 05:00:38,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:00:38,870 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_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c[1180,1193] [2023-12-03 05:00:40,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:00:40,288 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 05:00:40,301 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_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c[1180,1193] [2023-12-03 05:00:41,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:00:41,284 INFO L206 MainTranslator]: Completed translation [2023-12-03 05:00:41,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41 WrapperNode [2023-12-03 05:00:41,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 05:00:41,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 05:00:41,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 05:00:41,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 05:00:41,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:41,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:45,426 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56779 [2023-12-03 05:00:45,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 05:00:45,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 05:00:45,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 05:00:45,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 05:00:45,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:45,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:46,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:46,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:47,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:47,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:48,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:48,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:48,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 05:00:48,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 05:00:48,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 05:00:48,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 05:00:48,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:41" (1/1) ... [2023-12-03 05:00:48,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:00:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 05:00:48,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 05:00:48,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 05:00:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 05:00:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 05:00:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 05:00:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 05:00:51,455 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 05:00:51,458 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 05:01:16,282 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 05:03:47,049 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 05:03:47,049 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 05:03:47,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:03:47 BoogieIcfgContainer [2023-12-03 05:03:47,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 05:03:47,052 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 05:03:47,052 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 05:03:47,059 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 05:03:47,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:03:47" (1/1) ... [2023-12-03 05:03:47,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 05:03:47,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 05:03:47,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 05:03:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 05:03:47,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:47,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:04:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:05:15,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 05:05:25,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 05:05:36,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:47,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:57,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:06:00,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:06:10,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:06:20,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:06:20,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 05:06:20,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 05:06:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:06:20,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:06:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 05:06:47,128 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) [2023-12-03 05:06:47,132 INFO L158 Benchmark]: Toolchain (without parser) took 368809.33ms. Allocated memory was 167.8MB in the beginning and 15.1GB in the end (delta: 14.9GB). Free memory was 104.0MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 4.1GB. Max. memory is 16.1GB. [2023-12-03 05:06:47,132 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 132.8MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 05:06:47,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2962.08ms. Allocated memory was 167.8MB in the beginning and 719.3MB in the end (delta: 551.6MB). Free memory was 104.0MB in the beginning and 431.3MB in the end (delta: -327.3MB). Peak memory consumption was 279.3MB. Max. memory is 16.1GB. [2023-12-03 05:06:47,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 4140.03ms. Allocated memory was 719.3MB in the beginning and 6.2GB in the end (delta: 5.5GB). Free memory was 431.3MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 715.1MB. Max. memory is 16.1GB. [2023-12-03 05:06:47,135 INFO L158 Benchmark]: Boogie Preprocessor took 3436.50ms. Allocated memory is still 6.2GB. Free memory was 5.2GB in the beginning and 4.9GB in the end (delta: 328.1MB). Peak memory consumption was 442.5MB. Max. memory is 16.1GB. [2023-12-03 05:06:47,136 INFO L158 Benchmark]: RCFGBuilder took 178186.85ms. Allocated memory was 6.2GB in the beginning and 14.9GB in the end (delta: 8.7GB). Free memory was 4.9GB in the beginning and 11.1GB in the end (delta: -6.2GB). Peak memory consumption was 5.2GB. Max. memory is 16.1GB. [2023-12-03 05:06:47,137 INFO L158 Benchmark]: CodeCheck took 180078.95ms. Allocated memory was 14.9GB in the beginning and 15.1GB in the end (delta: 182.5MB). Free memory was 11.1GB in the beginning and 11.5GB in the end (delta: -407.9MB). Peak memory consumption was 378.5MB. Max. memory is 16.1GB. [2023-12-03 05:06:47,142 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 0.17ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 132.8MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2962.08ms. Allocated memory was 167.8MB in the beginning and 719.3MB in the end (delta: 551.6MB). Free memory was 104.0MB in the beginning and 431.3MB in the end (delta: -327.3MB). Peak memory consumption was 279.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 4140.03ms. Allocated memory was 719.3MB in the beginning and 6.2GB in the end (delta: 5.5GB). Free memory was 431.3MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 715.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3436.50ms. Allocated memory is still 6.2GB. Free memory was 5.2GB in the beginning and 4.9GB in the end (delta: 328.1MB). Peak memory consumption was 442.5MB. Max. memory is 16.1GB. * RCFGBuilder took 178186.85ms. Allocated memory was 6.2GB in the beginning and 14.9GB in the end (delta: 8.7GB). Free memory was 4.9GB in the beginning and 11.1GB in the end (delta: -6.2GB). Peak memory consumption was 5.2GB. Max. memory is 16.1GB. * CodeCheck took 180078.95ms. Allocated memory was 14.9GB in the beginning and 15.1GB in the end (delta: 182.5MB). Free memory was 11.1GB in the beginning and 11.5GB in the end (delta: -407.9MB). Peak memory consumption was 378.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 05:06:47,355 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 05:06:47,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 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_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9 --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 991227ded011df05607ddf06154b711e655314779d1a9962856918283d05f8e3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 05:06:49,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 05:06:49,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 05:06:49,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 05:06:49,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 05:06:49,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 05:06:49,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 05:06:49,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 05:06:49,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 05:06:49,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 05:06:49,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 05:06:49,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 05:06:49,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 05:06:49,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 05:06:49,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 05:06:49,874 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 05:06:49,875 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 05:06:49,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 05:06:49,876 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 05:06:49,876 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 05:06:49,877 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 05:06:49,877 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 05:06:49,878 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:49,878 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 05:06:49,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 05:06:49,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:06:49,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 05:06:49,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 05:06:49,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 05:06:49,881 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 05:06:49,881 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:49,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 05:06:49,882 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 05:06:49,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 05:06:49,882 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_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991227ded011df05607ddf06154b711e655314779d1a9962856918283d05f8e3 [2023-12-03 05:06:50,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 05:06:50,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 05:06:50,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 05:06:50,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 05:06:50,219 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 05:06:50,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c [2023-12-03 05:06:53,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 05:06:53,575 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 05:06:53,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c [2023-12-03 05:06:53,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/da6279945/515f50ba87ff47ca848a4a660270aa0a/FLAG79693cbd9 [2023-12-03 05:06:53,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/data/da6279945/515f50ba87ff47ca848a4a660270aa0a [2023-12-03 05:06:53,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 05:06:53,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 05:06:53,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 05:06:53,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 05:06:53,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 05:06:53,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:06:53" (1/1) ... [2023-12-03 05:06:53,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a67fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:53, skipping insertion in model container [2023-12-03 05:06:53,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:06:53" (1/1) ... [2023-12-03 05:06:53,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:06:54,226 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_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c[1180,1193] [2023-12-03 05:06:55,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:06:55,363 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 05:06:55,375 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_764da35c-d1a5-478c-a414-0500ac1db073/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.6.prop1-back-serstep.c[1180,1193] [2023-12-03 05:06:56,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:06:56,172 INFO L206 MainTranslator]: Completed translation [2023-12-03 05:06:56,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56 WrapperNode [2023-12-03 05:06:56,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 05:06:56,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 05:06:56,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 05:06:56,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 05:06:56,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:56,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:56,793 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 16487 [2023-12-03 05:06:56,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 05:06:56,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 05:06:56,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 05:06:56,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 05:06:56,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:56,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:56,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:56,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 05:06:57,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 05:06:57,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 05:06:57,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 05:06:57,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:06:56" (1/1) ... [2023-12-03 05:06:57,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:06:57,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 05:06:57,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 05:06:57,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 05:06:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 05:06:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 05:06:57,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 05:06:57,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 05:06:59,242 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 05:06:59,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 05:08:37,926 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 05:08:38,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 05:08:38,677 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 05:08:38,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:08:38 BoogieIcfgContainer [2023-12-03 05:08:38,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 05:08:38,680 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 05:08:38,680 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 05:08:38,691 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 05:08:38,691 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:08:38" (1/1) ... [2023-12-03 05:08:38,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 05:08:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 05:08:38,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 05:08:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 05:08:38,761 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:38,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:38,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:38,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:38,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 05:08:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:42,578 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:43,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 05:08:43,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:08:43,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 05:08:54,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:09:04,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:09:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:05,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 05:09:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 05:09:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:09:05,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:05,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:05,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:05,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:05,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 05:09:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:16,355 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:20,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:09:20,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:09:24,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 05:09:35,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:09:46,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:10:00,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:10:10,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:10:16,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.26s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:10:29,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 05:10:41,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 05:10:51,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 05:11:01,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 05:11:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:11:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:11:02,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:11:02,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:02,115 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:02,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:02,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:02,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 05:11:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:12,706 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:16,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:11:16,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:11:19,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 05:11:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:11:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:11:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:11:19,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:19,292 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:19,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:19,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 05:11:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:30,025 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:34,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:11:34,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:36,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:11:36,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 05:11:36,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:11:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:11:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:11:36,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:36,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:36,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 05:11:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:47,388 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:51,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:11:51,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:11:53,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 05:11:53,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:11:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:11:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:11:53,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:53,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:53,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:53,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:53,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 05:12:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:04,588 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:08,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:12:08,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:12:11,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 05:12:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:11,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:12:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:12:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:12:11,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:11,234 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:11,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:11,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:11,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 05:12:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:22,555 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:26,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 14540 conjuncts, 212 conjunts are in the unsatisfiable core [2023-12-03 05:12:26,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:29,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:12:29,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 05:12:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:12:29,307 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:12:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:12:29,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:29,308 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:29,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:29,309 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:29,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764da35c-d1a5-478c-a414-0500ac1db073/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 05:12:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:40,204 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported