./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.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_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/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_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/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_fd94babd-4955-448d-946a-c826212dcf0e/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 b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:49:18,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:49:18,950 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 04:49:18,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:49:18,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:49:18,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:49:18,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:49:18,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:49:18,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:49:18,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:49:18,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:49:18,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:49:18,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:49:18,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:49:18,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:49:18,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:49:18,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:49:18,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:49:18,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:49:18,983 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:49:18,984 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:49:18,984 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:49:18,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:49:18,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:49:18,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:49:18,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:49:18,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:49:18,987 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:49:18,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:49:18,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:49:18,988 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_fd94babd-4955-448d-946a-c826212dcf0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae [2023-12-03 04:49:19,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:49:19,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:49:19,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:49:19,228 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:49:19,228 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:49:19,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2023-12-03 04:49:22,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:49:22,511 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:49:22,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2023-12-03 04:49:22,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/103536cd6/0e5cf02bee184eeca311f2c725dd6c61/FLAGd5fb9a989 [2023-12-03 04:49:22,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/103536cd6/0e5cf02bee184eeca311f2c725dd6c61 [2023-12-03 04:49:22,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:49:22,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:49:22,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:49:22,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:49:22,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:49:22,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:49:22" (1/1) ... [2023-12-03 04:49:22,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de8a484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:22, skipping insertion in model container [2023-12-03 04:49:22,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:49:22" (1/1) ... [2023-12-03 04:49:22,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:49:23,074 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_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2023-12-03 04:49:24,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:49:24,122 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:49:24,131 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_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2023-12-03 04:49:25,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:49:25,022 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:49:25,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25 WrapperNode [2023-12-03 04:49:25,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:49:25,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:49:25,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:49:25,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:49:25,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:25,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:27,563 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43345 [2023-12-03 04:49:27,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:49:27,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:49:27,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:49:27,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:49:27,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:27,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:28,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:28,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:28,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:28,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:29,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:29,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:29,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:49:29,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:49:29,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:49:29,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:49:29,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:49:25" (1/1) ... [2023-12-03 04:49:29,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:49:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:49:29,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:49:29,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:49:29,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:49:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:49:29,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:49:29,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:49:31,577 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:49:31,579 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:49:50,514 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:51:25,627 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:51:25,628 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:51:25,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:51:25 BoogieIcfgContainer [2023-12-03 04:51:25,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:51:25,630 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:51:25,631 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:51:25,638 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:51:25,638 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:51:25" (1/1) ... [2023-12-03 04:51:25,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:51:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:51:25,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 04:51:25,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 04:51:25,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:51:25,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:51:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:51:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:51:57,493 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 04:52:09,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:52:19,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:52:22,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:52:33,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:52:43,110 WARN L539 Checker$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 04:52:53,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:53:02,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:53:12,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:53:22,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:53:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:53:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 04:53:22,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 04:53:22,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:53:22,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:53:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:53:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 04:53:40,243 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 04:53:40,247 INFO L158 Benchmark]: Toolchain (without parser) took 257650.08ms. Allocated memory was 174.1MB in the beginning and 12.9GB in the end (delta: 12.7GB). Free memory was 120.1MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2023-12-03 04:53:40,247 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:53:40,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2425.29ms. Allocated memory was 174.1MB in the beginning and 325.1MB in the end (delta: 151.0MB). Free memory was 119.9MB in the beginning and 107.7MB in the end (delta: 12.2MB). Peak memory consumption was 211.7MB. Max. memory is 16.1GB. [2023-12-03 04:53:40,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 2539.85ms. Allocated memory was 325.1MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 107.7MB in the beginning and 1.0GB in the end (delta: -913.9MB). Peak memory consumption was 601.0MB. Max. memory is 16.1GB. [2023-12-03 04:53:40,250 INFO L158 Benchmark]: Boogie Preprocessor took 2105.07ms. Allocated memory was 1.7GB in the beginning and 5.0GB in the end (delta: 3.3GB). Free memory was 1.0GB in the beginning and 4.1GB in the end (delta: -3.0GB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. [2023-12-03 04:53:40,251 INFO L158 Benchmark]: RCFGBuilder took 115959.68ms. Allocated memory was 5.0GB in the beginning and 12.6GB in the end (delta: 7.6GB). Free memory was 4.1GB in the beginning and 10.2GB in the end (delta: -6.2GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. [2023-12-03 04:53:40,252 INFO L158 Benchmark]: CodeCheck took 134615.47ms. Allocated memory was 12.6GB in the beginning and 12.9GB in the end (delta: 297.8MB). Free memory was 10.2GB in the beginning and 10.5GB in the end (delta: -240.5MB). Peak memory consumption was 646.6MB. Max. memory is 16.1GB. [2023-12-03 04:53:40,256 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 0.18ms. Allocated memory is still 117.4MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2425.29ms. Allocated memory was 174.1MB in the beginning and 325.1MB in the end (delta: 151.0MB). Free memory was 119.9MB in the beginning and 107.7MB in the end (delta: 12.2MB). Peak memory consumption was 211.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2539.85ms. Allocated memory was 325.1MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 107.7MB in the beginning and 1.0GB in the end (delta: -913.9MB). Peak memory consumption was 601.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2105.07ms. Allocated memory was 1.7GB in the beginning and 5.0GB in the end (delta: 3.3GB). Free memory was 1.0GB in the beginning and 4.1GB in the end (delta: -3.0GB). Peak memory consumption was 285.2MB. Max. memory is 16.1GB. * RCFGBuilder took 115959.68ms. Allocated memory was 5.0GB in the beginning and 12.6GB in the end (delta: 7.6GB). Free memory was 4.1GB in the beginning and 10.2GB in the end (delta: -6.2GB). Peak memory consumption was 4.5GB. Max. memory is 16.1GB. * CodeCheck took 134615.47ms. Allocated memory was 12.6GB in the beginning and 12.9GB in the end (delta: 297.8MB). Free memory was 10.2GB in the beginning and 10.5GB in the end (delta: -240.5MB). Peak memory consumption was 646.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 04:53:40,468 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 04:53:40,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/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_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/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_fd94babd-4955-448d-946a-c826212dcf0e/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 b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:53:42,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:53:42,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 04:53:42,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:53:42,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:53:42,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:53:42,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:53:42,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:53:42,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:53:42,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:53:42,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:53:42,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:53:42,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:53:42,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:53:42,770 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:53:42,771 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:53:42,771 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:53:42,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:53:42,772 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:53:42,773 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:53:42,773 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:53:42,778 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:53:42,778 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:53:42,779 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:53:42,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:53:42,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:53:42,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:53:42,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:53:42,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:53:42,781 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:53:42,781 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:53:42,782 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:53:42,782 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:53:42,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:53:42,783 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_fd94babd-4955-448d-946a-c826212dcf0e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4465c74efdc25642ea8f19f13440d69aef46522638de8a0b28a0d0c861c44ae [2023-12-03 04:53:43,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:53:43,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:53:43,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:53:43,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:53:43,075 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:53:43,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2023-12-03 04:53:45,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:53:46,399 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:53:46,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c [2023-12-03 04:53:46,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/3b5734578/654dabd860d5486cab32e62dafeeae31/FLAGb02496b41 [2023-12-03 04:53:46,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/data/3b5734578/654dabd860d5486cab32e62dafeeae31 [2023-12-03 04:53:46,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:53:46,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:53:46,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:53:46,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:53:46,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:53:46,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:53:46" (1/1) ... [2023-12-03 04:53:46,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5483e109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:46, skipping insertion in model container [2023-12-03 04:53:46,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:53:46" (1/1) ... [2023-12-03 04:53:46,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:53:46,951 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_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2023-12-03 04:53:47,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:53:47,845 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:53:47,858 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_fd94babd-4955-448d-946a-c826212dcf0e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.leader_election.1.prop1-back-serstep.c[1183,1196] [2023-12-03 04:53:48,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:53:48,611 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:53:48,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48 WrapperNode [2023-12-03 04:53:48,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:53:48,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:53:48,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:53:48,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:53:48,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:48,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,127 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 12603 [2023-12-03 04:53:49,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:53:49,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:53:49,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:53:49,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:53:49,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:53:49,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:53:49,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:53:49,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:53:49,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:53:48" (1/1) ... [2023-12-03 04:53:49,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:53:49,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:53:49,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:53:49,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:53:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:53:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:53:49,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:53:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:53:51,327 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:53:51,329 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:54:47,464 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:54:47,857 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:54:47,857 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:54:47,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:54:47 BoogieIcfgContainer [2023-12-03 04:54:47,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:54:47,859 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:54:47,860 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:54:47,867 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:54:47,867 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:54:47" (1/1) ... [2023-12-03 04:54:47,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:54:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:54:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 04:54:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 04:54:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:54:47,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:54:47,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:54:47,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:54:47,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:54:47,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:54:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:54:50,853 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:54:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:54:51,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:54:51,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:54:51,936 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 04:54:51,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:55:03,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:55:13,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:55:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:55:13,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 04:55:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 04:55:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:55:13,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:55:13,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:55:13,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:55:13,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:55:13,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 04:55:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:55:24,020 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:55:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:55:27,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:55:27,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:55:31,090 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 04:55:31,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 04:55:42,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:55:54,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:56:07,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:56:17,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:56:23,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.99s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:56:37,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:56:49,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:56:59,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:57:00,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 04:57:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:57:01,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:57:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:57:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:57:01,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:57:01,463 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:57:01,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:57:01,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:57:01,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:57:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:11,711 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:57:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:15,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:57:15,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:57:17,386 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 04:57:17,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 04:57:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:57:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:57:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:57:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:57:17,505 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:57:17,505 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:57:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:57:17,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:57:17,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 04:57:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:27,852 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:57:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:31,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:57:31,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:57:33,513 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 04:57:33,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 04:57:33,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:57:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:57:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:57:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:57:33,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:57:33,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:57:33,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:57:33,633 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:57:33,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 04:57:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:43,926 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:57:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:57:47,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:57:47,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:57:49,551 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 04:57:49,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 04:57:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:57:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:57:49,669 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:57:49,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:57:49,670 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:57:49,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:57:49,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:57:49,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:57:49,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 04:58:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:00,063 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:58:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:03,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:58:03,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:58:05,668 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 04:58:05,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 04:58:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:58:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:58:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:58:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:58:05,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:58:05,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:58:05,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:58:05,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:58:05,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 04:58:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:16,218 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:58:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:19,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:58:19,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:58:21,984 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 04:58:22,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 04:58:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:58:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:58:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:58:22,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:58:22,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:58:22,107 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:58:22,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:58:22,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:58:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 04:58:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:32,431 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:58:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:35,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:58:35,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:58:38,014 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 04:58:38,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 04:58:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:58:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:58:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:58:38,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:58:38,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:58:38,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:58:38,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:58:38,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:58:38,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 04:58:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:48,573 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:58:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:58:52,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:58:52,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:58:54,152 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 04:58:54,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 04:58:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:58:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:58:54,274 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:58:54,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:58:54,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:58:54,275 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:58:54,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:58:54,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:58:54,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 04:59:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:04,905 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:59:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:08,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:59:08,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:59:10,475 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 04:59:10,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 04:59:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:59:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:59:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:59:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:59:10,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:59:10,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:59:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:59:10,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:59:10,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 04:59:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:21,125 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:59:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:24,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:59:24,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:59:26,657 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 04:59:26,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-03 04:59:26,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:59:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:59:26,799 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:59:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:59:26,799 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:59:26,799 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:59:26,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:59:26,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:59:26,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 04:59:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:37,275 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:59:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:40,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:59:40,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:59:42,912 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 04:59:43,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-12-03 04:59:43,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:59:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:59:43,036 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:59:43,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:59:43,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:59:43,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:59:43,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:59:43,038 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:59:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 04:59:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:53,736 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:59:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:59:57,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 04:59:57,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:59:59,293 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 04:59:59,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 04:59:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:59:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 04:59:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 04:59:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:59:59,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:59:59,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:59:59,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:59:59,395 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:59:59,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 05:00:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:09,875 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:00:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:13,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:00:13,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:15,272 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 05:00:15,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 05:00:15,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:15,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:00:15,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:00:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:00:15,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:15,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:00:15,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:00:15,399 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:00:15,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 05:00:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:26,178 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:00:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:29,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:00:29,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:31,827 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 05:00:31,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 05:00:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:31,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:00:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:00:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:00:31,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:31,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:00:31,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:00:31,955 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:00:31,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 05:00:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:42,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:00:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:46,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:00:46,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:48,331 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 05:00:48,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 05:00:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:00:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:00:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:00:48,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:48,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:00:48,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:00:48,459 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:00:48,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 05:00:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:59,422 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:01:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:03,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:01:03,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:05,298 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 05:01:05,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 05:01:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:01:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:01:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:01:05,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:01:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:01:05,429 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:01:05,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 05:01:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:16,092 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:01:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:19,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:01:19,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:21,791 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 05:01:21,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 05:01:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:01:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:01:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:01:21,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:01:21,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:01:21,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:01:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 05:01:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:32,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:01:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:36,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 11118 conjuncts, 195 conjunts are in the unsatisfiable core [2023-12-03 05:01:36,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:38,364 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 05:01:38,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-12-03 05:01:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:38,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2023-12-03 05:01:38,492 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2023-12-03 05:01:38,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:01:38,492 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:38,492 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:01:38,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:01:38,493 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:01:38,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd94babd-4955-448d-946a-c826212dcf0e/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 05:01:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:49,653 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported