./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:49:12,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:49:12,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:49:12,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:49:12,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:49:12,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:49:12,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:49:12,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:49:12,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:49:12,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:49:12,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:49:12,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:49:12,602 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:49:12,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:49:12,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:49:12,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:49:12,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:49:12,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:49:12,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:49:12,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:49:12,609 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:49:12,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:49:12,610 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:49:12,611 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:49:12,611 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:49:12,611 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:49:12,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:49:12,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:49:12,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:49:12,612 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:49:12,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:49:12,613 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:49:12,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:49:12,616 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 [2024-11-08 22:49:12,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:49:12,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:49:12,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:49:12,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:49:12,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:49:12,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c Unable to find full path for "g++" [2024-11-08 22:49:14,975 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:49:15,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:49:15,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c [2024-11-08 22:49:15,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/9fb4f93fb/4282cee6239b4bd3a723aedc541589b9/FLAG123d138dd [2024-11-08 22:49:15,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/9fb4f93fb/4282cee6239b4bd3a723aedc541589b9 [2024-11-08 22:49:15,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:49:15,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:49:15,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:49:15,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:49:15,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:49:15,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36860822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15, skipping insertion in model container [2024-11-08 22:49:15,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,206 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:49:15,382 WARN L250 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2024-11-08 22:49:15,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:49:15,411 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:49:15,422 WARN L250 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2024-11-08 22:49:15,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:49:15,447 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:49:15,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15 WrapperNode [2024-11-08 22:49:15,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:49:15,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:49:15,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:49:15,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:49:15,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,479 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-08 22:49:15,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:49:15,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:49:15,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:49:15,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:49:15,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:49:15,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:49:15,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:49:15,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:49:15,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:49:15,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:49:15,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:49:15,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:49:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:49:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:49:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:49:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:49:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:49:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:49:15,645 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:49:15,647 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:49:15,817 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 22:49:15,817 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:49:15,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:49:15,871 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 22:49:15,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:49:15 BoogieIcfgContainer [2024-11-08 22:49:15,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:49:15,872 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:49:15,872 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:49:15,883 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:49:15,884 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:49:15" (1/1) ... [2024-11-08 22:49:15,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:49:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2024-11-08 22:49:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2024-11-08 22:49:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:49:15,954 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:15,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:49:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-08 22:49:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-08 22:49:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:49:16,220 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:49:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2024-11-08 22:49:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2024-11-08 22:49:16,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:49:16,680 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:16,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:49:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2024-11-08 22:49:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-08 22:49:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:49:17,068 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:17,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:49:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 57 transitions. [2024-11-08 22:49:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2024-11-08 22:49:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:49:17,750 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:17,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:49:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:17,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:49:17,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:49:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 22:49:18,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 68 transitions. [2024-11-08 22:49:19,001 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 68 transitions. [2024-11-08 22:49:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 22:49:19,003 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:49:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 86 transitions. [2024-11-08 22:49:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 86 transitions. [2024-11-08 22:49:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 22:49:20,218 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:49:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:20,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 22:49:20,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:49:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 22:49:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 50 states and 100 transitions. [2024-11-08 22:49:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 100 transitions. [2024-11-08 22:49:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 22:49:21,388 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:49:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:21,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 52 states and 105 transitions. [2024-11-08 22:49:21,965 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 105 transitions. [2024-11-08 22:49:21,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 22:49:21,966 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:21,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 22:49:41,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:49:54,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 57 states and 117 transitions. [2024-11-08 22:49:54,084 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 117 transitions. [2024-11-08 22:49:54,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 22:49:54,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:54,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:54,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 22:49:55,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:49:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 61 states and 125 transitions. [2024-11-08 22:49:55,461 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 125 transitions. [2024-11-08 22:49:55,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 22:49:55,462 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:49:55,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:49:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:49:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:49:55,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 22:49:55,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:49:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:50:07,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:07,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 67 states and 143 transitions. [2024-11-08 22:50:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 143 transitions. [2024-11-08 22:50:07,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 22:50:07,647 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:07,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:50:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:07,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:50:07,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:50:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 22:50:08,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:08,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 69 states and 146 transitions. [2024-11-08 22:50:08,675 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 146 transitions. [2024-11-08 22:50:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 22:50:08,676 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:08,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:50:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:08,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 22:50:08,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:50:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:50:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 71 states and 152 transitions. [2024-11-08 22:50:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 152 transitions. [2024-11-08 22:50:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 22:50:09,591 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:50:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:09,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:50:09,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:50:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:50:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 74 states and 163 transitions. [2024-11-08 22:50:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 163 transitions. [2024-11-08 22:50:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 22:50:10,725 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:10,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 22:50:14,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 79 states and 176 transitions. [2024-11-08 22:50:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 176 transitions. [2024-11-08 22:50:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 22:50:14,624 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:14,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 22:50:19,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:19,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 86 states and 196 transitions. [2024-11-08 22:50:19,781 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 196 transitions. [2024-11-08 22:50:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:50:19,782 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:19,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 22:50:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 92 states and 221 transitions. [2024-11-08 22:50:22,178 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 221 transitions. [2024-11-08 22:50:22,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:50:22,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:22,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 22:50:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 94 states and 226 transitions. [2024-11-08 22:50:23,598 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 226 transitions. [2024-11-08 22:50:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:50:23,599 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:23,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:50:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:23,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 22:50:23,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:50:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-08 22:50:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:50:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 96 states and 230 transitions. [2024-11-08 22:50:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 230 transitions. [2024-11-08 22:50:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:50:24,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:50:24,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:50:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:50:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:50:24,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 22:50:24,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:50:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 25 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 22:51:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:51:15,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 99 states and 234 transitions. [2024-11-08 22:51:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 234 transitions. [2024-11-08 22:51:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:51:15,052 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:51:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:51:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:51:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:51:15,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 22:51:15,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:51:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 25 proven. 17 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 22:51:35,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:51:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 107 states and 256 transitions. [2024-11-08 22:51:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 256 transitions. [2024-11-08 22:51:35,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 22:51:35,499 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:51:35,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:51:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:51:35,739 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 22:51:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:51:36,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 109 states and 267 transitions. [2024-11-08 22:51:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 267 transitions. [2024-11-08 22:51:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 22:51:36,745 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:51:36,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:51:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:51:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-08 22:51:47,633 WARN L286 SmtUtils]: Spent 10.07s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:51:58,255 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:52:08,614 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:52:24,941 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:52:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:52:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 112 states and 274 transitions. [2024-11-08 22:52:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 274 transitions. [2024-11-08 22:52:35,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 22:52:35,674 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:52:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:52:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:52:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-08 22:52:37,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:52:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 114 states and 276 transitions. [2024-11-08 22:52:37,105 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 276 transitions. [2024-11-08 22:52:37,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 22:52:37,107 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:52:37,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:52:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:52:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:52:37,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:52:37,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:52:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 32 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 22:52:53,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-08 22:52:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:52:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 120 states and 297 transitions. [2024-11-08 22:52:53,342 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 297 transitions. [2024-11-08 22:52:53,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 22:52:53,344 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:52:53,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:52:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:52:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:52:53,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:52:53,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:52:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 32 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 22:52:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:52:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 122 states and 304 transitions. [2024-11-08 22:52:55,106 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 304 transitions. [2024-11-08 22:52:55,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 22:52:55,108 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:52:55,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:52:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:52:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:52:55,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 22:52:55,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:52:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-08 22:52:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:52:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 125 states and 309 transitions. [2024-11-08 22:52:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 309 transitions. [2024-11-08 22:52:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 22:52:57,659 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:52:57,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:52:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:52:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:52:57,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:52:57,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:52:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 32 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 22:53:01,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:01,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 127 states and 310 transitions. [2024-11-08 22:53:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 310 transitions. [2024-11-08 22:53:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 22:53:01,005 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:01,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:53:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:53:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:53:11,091 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:485) 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) [2024-11-08 22:53:11,095 INFO L158 Benchmark]: Toolchain (without parser) took 235922.83ms. Allocated memory was 146.8MB in the beginning and 251.7MB in the end (delta: 104.9MB). Free memory was 104.9MB in the beginning and 144.0MB in the end (delta: -39.1MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-11-08 22:53:11,096 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:53:11,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.64ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 91.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:53:11,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.69ms. Allocated memory is still 146.8MB. Free memory was 91.5MB in the beginning and 90.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:53:11,097 INFO L158 Benchmark]: Boogie Preprocessor took 22.98ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:53:11,098 INFO L158 Benchmark]: RCFGBuilder took 367.75ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 74.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:53:11,098 INFO L158 Benchmark]: CodeCheck took 235222.03ms. Allocated memory was 146.8MB in the beginning and 251.7MB in the end (delta: 104.9MB). Free memory was 74.7MB in the beginning and 144.0MB in the end (delta: -69.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-08 22:53:11,101 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:485) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 146.8MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.64ms. Allocated memory is still 146.8MB. Free memory was 104.5MB in the beginning and 91.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.69ms. Allocated memory is still 146.8MB. Free memory was 91.5MB in the beginning and 90.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.98ms. Allocated memory is still 146.8MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.75ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 74.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 235222.03ms. Allocated memory was 146.8MB in the beginning and 251.7MB in the end (delta: 104.9MB). Free memory was 74.7MB in the beginning and 144.0MB in the end (delta: -69.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 22:53:11,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:53:13,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:53:13,498 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 22:53:13,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:53:13,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:53:13,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:53:13,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:53:13,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:53:13,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:53:13,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:53:13,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:53:13,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:53:13,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:53:13,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:53:13,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:53:13,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:53:13,557 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:53:13,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:53:13,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:53:13,558 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:53:13,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:53:13,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:53:13,559 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:53:13,559 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:53:13,561 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:53:13,562 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:53:13,562 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:13,562 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:53:13,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:53:13,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:53:13,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:53:13,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:53:13,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:53:13,564 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:53:13,564 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:13,566 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:53:13,567 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa72233183b4e91144bd6a6eb8a8b140b7f90e590c3e855f829f337fec510ab9 [2024-11-08 22:53:13,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:53:13,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:53:13,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:53:13,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:53:13,976 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:53:13,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c Unable to find full path for "g++" [2024-11-08 22:53:15,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:53:16,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:53:16,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c [2024-11-08 22:53:16,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/f020f700a/edb145920fe94d7d82dc703cb839c840/FLAG642ce5726 [2024-11-08 22:53:16,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/data/f020f700a/edb145920fe94d7d82dc703cb839c840 [2024-11-08 22:53:16,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:53:16,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:53:16,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:53:16,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:53:16,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:53:16,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425b1b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16, skipping insertion in model container [2024-11-08 22:53:16,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:53:16,474 WARN L250 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2024-11-08 22:53:16,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:53:16,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:53:16,542 WARN L250 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_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound100.c[537,550] [2024-11-08 22:53:16,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:53:16,579 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:53:16,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16 WrapperNode [2024-11-08 22:53:16,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:53:16,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:53:16,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:53:16,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:53:16,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,623 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-08 22:53:16,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:53:16,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:53:16,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:53:16,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:53:16,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:53:16,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:53:16,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:53:16,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:53:16,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:53:16" (1/1) ... [2024-11-08 22:53:16,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:53:16,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:53:16,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:53:16,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:53:16,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:53:16,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:53:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:53:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:53:16,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:53:16,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:53:16,816 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:53:16,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:53:17,025 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 22:53:17,025 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:53:17,104 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:53:17,104 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 22:53:17,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:53:17 BoogieIcfgContainer [2024-11-08 22:53:17,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:53:17,106 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:53:17,106 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:53:17,118 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:53:17,118 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:53:17" (1/1) ... [2024-11-08 22:53:17,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:53:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:17,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2024-11-08 22:53:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2024-11-08 22:53:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:53:17,192 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:17,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:17,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:17,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:17,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:53:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,279 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 22:53:17,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:17,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:53:17,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:53:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:17,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2024-11-08 22:53:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2024-11-08 22:53:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:53:17,395 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:17,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:17,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:17,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:17,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:53:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,475 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:53:17,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:53:17,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 22:53:17,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 27 states and 45 transitions. [2024-11-08 22:53:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2024-11-08 22:53:17,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:53:17,802 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:17,802 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:17,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:17,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:17,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-08 22:53:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,877 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:17,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 22:53:17,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:53:17,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2024-11-08 22:53:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2024-11-08 22:53:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:53:18,221 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:18,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:18,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:18,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-08 22:53:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:18,288 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:18,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:53:18,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:53:18,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:18,399 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 22:53:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2024-11-08 22:53:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2024-11-08 22:53:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:53:18,971 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:18,971 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:18,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:18,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:18,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-08 22:53:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:19,053 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:19,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 22:53:19,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:19,441 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 22:53:19,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 74 transitions. [2024-11-08 22:53:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 74 transitions. [2024-11-08 22:53:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 22:53:21,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:21,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:21,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:21,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-08 22:53:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:21,340 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:21,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 22:53:21,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:21,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:53:21,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 50 states and 112 transitions. [2024-11-08 22:53:23,982 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 112 transitions. [2024-11-08 22:53:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 22:53:23,983 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:23,992 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:23,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:23,996 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:23,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-08 22:53:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:24,116 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:24,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:53:24,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 22:53:24,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:25,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 56 states and 129 transitions. [2024-11-08 22:53:25,323 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 129 transitions. [2024-11-08 22:53:25,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 22:53:25,324 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:25,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:25,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:25,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:25,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-08 22:53:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:25,415 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:25,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 22:53:25,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:53:25,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:26,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 58 states and 134 transitions. [2024-11-08 22:53:26,271 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 134 transitions. [2024-11-08 22:53:26,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 22:53:26,272 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:26,276 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:26,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-08 22:53:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:26,323 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:26,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:53:26,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:53:27,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-08 22:53:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 63 states and 148 transitions. [2024-11-08 22:53:36,902 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 148 transitions. [2024-11-08 22:53:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 22:53:36,903 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:36,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:36,907 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:36,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-08 22:53:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:36,964 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:36,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:53:36,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:37,029 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:53:37,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-08 22:53:37,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 65 states and 149 transitions. [2024-11-08 22:53:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 149 transitions. [2024-11-08 22:53:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 22:53:37,873 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:37,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:37,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:37,876 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:37,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-08 22:53:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:37,984 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:38,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 22:53:38,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 22:53:38,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-08 22:53:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 71 states and 172 transitions. [2024-11-08 22:53:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 172 transitions. [2024-11-08 22:53:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 22:53:43,902 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:43,902 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:43,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:43,905 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:43,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-08 22:53:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:44,038 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:44,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:53:44,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:53:44,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-08 22:53:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 74 states and 187 transitions. [2024-11-08 22:53:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 187 transitions. [2024-11-08 22:53:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 22:53:46,082 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:46,082 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:46,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:46,086 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:46,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-08 22:53:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:46,137 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:46,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 22:53:46,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 22:53:46,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-08 22:53:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 79 states and 202 transitions. [2024-11-08 22:53:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 202 transitions. [2024-11-08 22:53:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 22:53:51,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:51,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:51,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:51,748 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:51,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-08 22:53:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:51,803 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:51,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:53:51,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-08 22:53:52,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-08 22:53:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:53:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 82 states and 211 transitions. [2024-11-08 22:53:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 211 transitions. [2024-11-08 22:53:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:53:53,860 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:53:53,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:53:53,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:53:53,863 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:53:53,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-08 22:53:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:53,971 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:53:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:53:54,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 22:53:54,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:53:54,520 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 22:53:54,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-08 22:54:02,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 92 states and 276 transitions. [2024-11-08 22:54:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 276 transitions. [2024-11-08 22:54:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 22:54:02,355 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:02,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:02,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:02,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:02,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-08 22:54:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:02,509 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:02,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:54:02,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-08 22:54:02,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-08 22:54:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 97 states and 289 transitions. [2024-11-08 22:54:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 289 transitions. [2024-11-08 22:54:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 22:54:05,158 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:05,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:05,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:05,162 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:05,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-08 22:54:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:05,293 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:05,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 22:54:05,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:05,753 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 22:54:05,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-08 22:54:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:08,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 99 states and 296 transitions. [2024-11-08 22:54:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 296 transitions. [2024-11-08 22:54:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 22:54:08,161 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:08,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:08,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:08,164 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:08,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-08 22:54:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:08,223 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:08,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:54:08,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 25 proven. 23 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-08 22:54:08,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-08 22:54:17,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:17,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 102 states and 302 transitions. [2024-11-08 22:54:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 302 transitions. [2024-11-08 22:54:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 22:54:17,257 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:17,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:17,259 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:17,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-08 22:54:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:17,326 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:17,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:54:17,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:17,420 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-08 22:54:17,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-08 22:54:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 104 states and 303 transitions. [2024-11-08 22:54:18,846 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 303 transitions. [2024-11-08 22:54:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 22:54:18,849 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:18,849 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:18,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:18,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:18,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-08 22:54:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:18,970 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:19,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 22:54:19,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 26 proven. 42 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-08 22:54:19,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-08 22:54:29,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 110 states and 334 transitions. [2024-11-08 22:54:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 334 transitions. [2024-11-08 22:54:29,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 22:54:29,554 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:29,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:29,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:29,560 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:29,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-08 22:54:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:29,703 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:29,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:54:29,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 22:54:30,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-08 22:54:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:54:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 115 states and 352 transitions. [2024-11-08 22:54:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 352 transitions. [2024-11-08 22:54:47,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 22:54:47,742 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:54:47,742 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:54:47,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:54:47,745 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:54:47,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-08 22:54:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:47,968 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:54:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:54:48,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 22:54:48,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:54:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-08 22:54:50,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-08 22:55:17,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:17,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 129 states and 398 transitions. [2024-11-08 22:55:17,209 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 398 transitions. [2024-11-08 22:55:17,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 22:55:17,210 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:17,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:17,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:17,213 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:17,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-08 22:55:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:17,393 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:17,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 22:55:17,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 17 proven. 35 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-08 22:55:19,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-08 22:55:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 132 states and 412 transitions. [2024-11-08 22:55:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 412 transitions. [2024-11-08 22:55:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 22:55:29,385 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:29,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:29,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:29,387 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:29,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-08 22:55:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:29,525 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:29,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:55:29,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 17 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-08 22:55:29,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-08 22:55:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 134 states and 422 transitions. [2024-11-08 22:55:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 422 transitions. [2024-11-08 22:55:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 22:55:31,479 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:31,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:31,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:31,482 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:31,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-08 22:55:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:31,689 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:31,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:55:31,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 17 proven. 25 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-08 22:55:32,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-08 22:55:38,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:38,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 137 states and 433 transitions. [2024-11-08 22:55:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 433 transitions. [2024-11-08 22:55:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 22:55:38,087 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:38,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:38,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:38,090 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:38,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-08 22:55:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:38,229 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:38,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:55:38,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 22:55:39,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-08 22:55:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 145 states and 500 transitions. [2024-11-08 22:55:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 500 transitions. [2024-11-08 22:55:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 22:55:50,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:50,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:50,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:50,655 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:50,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-08 22:55:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:50,788 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:50,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:55:50,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-08 22:55:51,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2024-11-08 22:55:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:55:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 147 states and 511 transitions. [2024-11-08 22:55:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 511 transitions. [2024-11-08 22:55:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 22:55:56,428 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:55:56,429 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:55:56,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:55:56,431 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:55:56,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-08 22:55:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:56,501 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:55:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:55:56,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:55:56,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:55:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 41 proven. 35 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-08 22:55:56,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-08 22:56:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:56:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 150 states and 517 transitions. [2024-11-08 22:56:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 517 transitions. [2024-11-08 22:56:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 22:56:09,071 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:56:09,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:56:09,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:56:09,075 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:56:09,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-08 22:56:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:09,153 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:56:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:09,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:56:09,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:56:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-08 22:56:09,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2024-11-08 22:56:12,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:56:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 152 states and 518 transitions. [2024-11-08 22:56:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 518 transitions. [2024-11-08 22:56:12,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 22:56:12,067 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:56:12,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:56:12,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:56:12,070 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:56:12,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-08 22:56:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:12,244 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:56:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:12,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-08 22:56:12,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:56:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 69 proven. 37 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-08 22:56:16,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-08 22:56:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:56:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 165 states and 576 transitions. [2024-11-08 22:56:37,854 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 576 transitions. [2024-11-08 22:56:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 22:56:37,856 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:56:37,856 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:56:37,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:56:37,861 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:56:37,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-08 22:56:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:37,922 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:56:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:37,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 22:56:37,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:56:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 22:56:38,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-08 22:56:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:56:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 166 states and 577 transitions. [2024-11-08 22:56:44,807 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 577 transitions. [2024-11-08 22:56:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 22:56:44,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:56:44,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:56:44,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:56:44,813 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:56:44,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-08 22:56:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:44,978 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:56:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:56:45,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 22:56:45,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:56:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 49 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 22:56:46,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2024-11-08 22:57:05,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:57:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 172 states and 617 transitions. [2024-11-08 22:57:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 617 transitions. [2024-11-08 22:57:05,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 22:57:05,572 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:57:05,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:57:05,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:57:05,574 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:57:05,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-08 22:57:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:57:05,753 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:57:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:57:05,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 22:57:05,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:57:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 44 proven. 43 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-08 22:57:07,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2024-11-08 22:57:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:57:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 174 states and 623 transitions. [2024-11-08 22:57:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 623 transitions. [2024-11-08 22:57:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 22:57:14,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:57:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:57:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:57:14,812 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:57:14,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-08 22:57:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:57:15,015 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:57:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:57:15,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:57:15,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:57:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 41 proven. 56 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-08 22:57:19,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2024-11-08 22:58:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 188 states and 684 transitions. [2024-11-08 22:58:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 684 transitions. [2024-11-08 22:58:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 22:58:00,511 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:00,511 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:00,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:58:00,516 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:58:00,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-08 22:58:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:00,742 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:58:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:01,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:58:01,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:58:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 41 proven. 56 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-08 22:58:02,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2024-11-08 22:58:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 193 states and 698 transitions. [2024-11-08 22:58:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 698 transitions. [2024-11-08 22:58:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 22:58:19,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:19,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:19,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:58:19,135 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:58:19,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-08 22:58:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:19,420 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:58:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:19,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:58:19,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:58:22,008 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 22 proven. 200 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 22:58:22,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2024-11-08 22:58:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 198 states and 724 transitions. [2024-11-08 22:58:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 724 transitions. [2024-11-08 22:58:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 22:58:33,576 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:33,576 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:33,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:58:33,580 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:58:33,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2024-11-08 22:58:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:33,838 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:58:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:34,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 22:58:34,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:58:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 41 proven. 56 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-08 22:58:35,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2024-11-08 22:58:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:58:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 200 states and 730 transitions. [2024-11-08 22:58:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 730 transitions. [2024-11-08 22:58:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 22:58:44,290 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:58:44,290 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:58:44,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:58:44,294 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:58:44,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-08 22:58:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:44,649 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:58:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:58:44,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 22:58:44,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:58:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 23 proven. 56 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-08 22:58:48,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2024-11-08 22:59:04,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:59:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 203 states and 747 transitions. [2024-11-08 22:59:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 747 transitions. [2024-11-08 22:59:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 22:59:04,098 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:59:04,098 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:59:04,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:59:04,101 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:59:04,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-08 22:59:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:04,383 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:59:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:04,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:59:04,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:59:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-08 22:59:04,814 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (40)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 22:59:04,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2024-11-08 22:59:08,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:59:08,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 205 states and 759 transitions. [2024-11-08 22:59:08,019 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 759 transitions. [2024-11-08 22:59:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 22:59:08,020 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:59:08,020 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:59:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:59:08,021 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:59:08,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2024-11-08 22:59:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:08,230 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:59:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:08,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 22:59:08,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:59:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 23 proven. 34 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-08 22:59:08,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2024-11-08 22:59:16,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:59:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 207 states and 763 transitions. [2024-11-08 22:59:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 763 transitions. [2024-11-08 22:59:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 22:59:16,314 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:59:16,314 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:59:16,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:59:16,317 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:59:16,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-08 22:59:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:16,538 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:59:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:16,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:59:16,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:59:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 24 proven. 252 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-08 22:59:16,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2024-11-08 22:59:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:59:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 215 states and 857 transitions. [2024-11-08 22:59:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 857 transitions. [2024-11-08 22:59:35,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 22:59:35,935 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:59:35,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:59:35,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:59:35,937 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:59:35,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2024-11-08 22:59:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:36,131 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:59:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:36,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 22:59:36,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:59:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 24 proven. 260 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-08 22:59:37,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2024-11-08 22:59:45,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:59:45,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 217 states and 865 transitions. [2024-11-08 22:59:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 865 transitions. [2024-11-08 22:59:45,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 22:59:45,427 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:59:45,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:59:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:59:45,431 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:59:45,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2024-11-08 22:59:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:45,517 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:59:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:59:45,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 22:59:45,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:59:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 57 proven. 47 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-08 22:59:45,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2024-11-08 23:00:05,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:00:05,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 220 states and 871 transitions. [2024-11-08 23:00:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 871 transitions. [2024-11-08 23:00:05,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 23:00:05,094 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:00:05,094 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:00:05,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:00:05,098 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:00:05,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2024-11-08 23:00:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:00:05,200 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:00:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:00:05,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:00:05,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:00:05,414 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-08 23:00:05,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2024-11-08 23:00:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:00:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 222 states and 872 transitions. [2024-11-08 23:00:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 872 transitions. [2024-11-08 23:00:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 23:00:10,241 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:00:10,241 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:00:10,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:00:10,243 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:00:10,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_194f31d9-c8cc-4da6-9d8c-f497dcc244e5/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2024-11-08 23:00:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:00:10,318 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:00:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:00:10,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 23:00:10,401 INFO L278 TraceCheckSpWp]: Computing forward predicates...