./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:13:07,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:13:07,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 02:13:07,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:13:07,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:13:07,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:13:07,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:13:07,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:13:07,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:13:07,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:13:07,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:13:07,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:13:07,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:13:07,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:13:07,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:13:07,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:13:07,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:13:07,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:13:07,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:13:07,357 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:13:07,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:13:07,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:13:07,359 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:13:07,359 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:13:07,359 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:13:07,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:13:07,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:13:07,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:13:07,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:13:07,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:13:07,362 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:13:07,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:13:07,362 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:13:07,363 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_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 [2023-12-03 02:13:07,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:13:07,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:13:07,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:13:07,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:13:07,584 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:13:07,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2023-12-03 02:13:10,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:13:10,425 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:13:10,425 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2023-12-03 02:13:10,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/2f8900b84/36bac51915614890a1fb17181bfba68e/FLAG8a9a095e9 [2023-12-03 02:13:10,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/2f8900b84/36bac51915614890a1fb17181bfba68e [2023-12-03 02:13:10,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:13:10,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:13:10,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:13:10,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:13:10,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:13:10,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d141af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10, skipping insertion in model container [2023-12-03 02:13:10,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,479 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:13:10,629 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c[458,471] [2023-12-03 02:13:10,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:13:10,654 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:13:10,667 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c[458,471] [2023-12-03 02:13:10,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:13:10,687 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:13:10,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10 WrapperNode [2023-12-03 02:13:10,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:13:10,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:13:10,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:13:10,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:13:10,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,716 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-12-03 02:13:10,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:13:10,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:13:10,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:13:10,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:13:10,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:13:10,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:13:10,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:13:10,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:13:10,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:13:10" (1/1) ... [2023-12-03 02:13:10,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:13:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:13:10,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:13:10,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:13:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:13:10,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:13:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:13:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:13:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:13:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:13:10,873 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:13:10,876 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:13:10,996 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:13:11,038 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:13:11,038 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:13:11,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:13:11 BoogieIcfgContainer [2023-12-03 02:13:11,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:13:11,041 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:13:11,041 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:13:11,050 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:13:11,051 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:13:11" (1/1) ... [2023-12-03 02:13:11,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:13:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:11,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-03 02:13:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-03 02:13:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:13:11,106 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:11,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:13:11,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:13:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-12-03 02:13:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-12-03 02:13:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:13:11,377 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:11,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:11,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:13:11,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:13:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2023-12-03 02:13:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2023-12-03 02:13:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 02:13:11,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:11,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:11,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 02:13:11,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:13:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:11,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 35 transitions. [2023-12-03 02:13:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2023-12-03 02:13:11,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:13:11,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:11,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:11,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:11,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:13:12,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 44 transitions. [2023-12-03 02:13:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 44 transitions. [2023-12-03 02:13:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:13:12,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:12,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 02:13:12,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:13:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 61 transitions. [2023-12-03 02:13:12,917 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2023-12-03 02:13:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:13:12,918 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:12,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:12,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 02:13:12,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:13:13,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:13,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 37 states and 67 transitions. [2023-12-03 02:13:13,301 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 67 transitions. [2023-12-03 02:13:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:13:13,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:13,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:13,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:13,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-03 02:13:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions. [2023-12-03 02:13:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2023-12-03 02:13:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:13:13,510 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:13,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:13,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 02:13:13,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:13,725 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:13:14,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:14,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 45 states and 84 transitions. [2023-12-03 02:13:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 84 transitions. [2023-12-03 02:13:14,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:13:14,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:14,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:14,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:13:14,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:13:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:14,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 48 states and 90 transitions. [2023-12-03 02:13:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2023-12-03 02:13:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 02:13:14,804 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:14,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:14,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-03 02:13:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 49 states and 92 transitions. [2023-12-03 02:13:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 92 transitions. [2023-12-03 02:13:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 02:13:15,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:15,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:15,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:13:15,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:15,326 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 02:13:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 56 states and 107 transitions. [2023-12-03 02:13:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 107 transitions. [2023-12-03 02:13:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 02:13:16,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:16,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 02:13:16,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 02:13:16,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 59 states and 113 transitions. [2023-12-03 02:13:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 113 transitions. [2023-12-03 02:13:16,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 02:13:16,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:16,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:16,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:16,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-03 02:13:16,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:16,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 60 states and 115 transitions. [2023-12-03 02:13:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 115 transitions. [2023-12-03 02:13:16,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 02:13:16,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:16,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:16,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 02:13:16,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 02:13:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 67 states and 130 transitions. [2023-12-03 02:13:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 130 transitions. [2023-12-03 02:13:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 02:13:18,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:18,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:18,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 02:13:18,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 02:13:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 70 states and 136 transitions. [2023-12-03 02:13:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 136 transitions. [2023-12-03 02:13:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 02:13:18,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:18,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:18,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:18,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:18,718 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-03 02:13:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 71 states and 138 transitions. [2023-12-03 02:13:18,928 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 138 transitions. [2023-12-03 02:13:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 02:13:18,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:18,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:18,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 02:13:18,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:19,202 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 23 proven. 49 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-03 02:13:20,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:20,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 78 states and 153 transitions. [2023-12-03 02:13:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 153 transitions. [2023-12-03 02:13:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 02:13:20,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:20,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 02:13:20,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 34 proven. 59 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:13:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 81 states and 159 transitions. [2023-12-03 02:13:22,043 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 159 transitions. [2023-12-03 02:13:22,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 02:13:22,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:22,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:22,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:22,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-03 02:13:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 82 states and 161 transitions. [2023-12-03 02:13:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 161 transitions. [2023-12-03 02:13:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 02:13:22,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:22,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:22,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-03 02:13:22,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:22,651 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 28 proven. 67 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-03 02:13:23,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:23,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 89 states and 176 transitions. [2023-12-03 02:13:23,906 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 176 transitions. [2023-12-03 02:13:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 02:13:23,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:25,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-03 02:13:25,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:26,221 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-03 02:13:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 92 states and 182 transitions. [2023-12-03 02:13:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 182 transitions. [2023-12-03 02:13:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 02:13:27,033 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:27,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:27,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:27,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-03 02:13:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 93 states and 184 transitions. [2023-12-03 02:13:27,414 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 184 transitions. [2023-12-03 02:13:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 02:13:27,415 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:27,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:27,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-03 02:13:27,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-03 02:13:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:29,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 100 states and 199 transitions. [2023-12-03 02:13:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 199 transitions. [2023-12-03 02:13:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 02:13:29,358 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:33,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-03 02:13:33,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 50 proven. 102 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-03 02:13:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 103 states and 205 transitions. [2023-12-03 02:13:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 205 transitions. [2023-12-03 02:13:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 02:13:34,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:34,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:34,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-03 02:13:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 104 states and 207 transitions. [2023-12-03 02:13:34,603 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 207 transitions. [2023-12-03 02:13:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 02:13:34,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:34,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-03 02:13:34,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 38 proven. 112 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-03 02:13:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 111 states and 222 transitions. [2023-12-03 02:13:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 222 transitions. [2023-12-03 02:13:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 02:13:36,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:36,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:42,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-03 02:13:42,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 58 proven. 128 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-03 02:13:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:44,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 114 states and 228 transitions. [2023-12-03 02:13:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 228 transitions. [2023-12-03 02:13:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 02:13:44,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:44,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:44,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:44,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:44,214 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 02:13:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 115 states and 230 transitions. [2023-12-03 02:13:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 230 transitions. [2023-12-03 02:13:44,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 02:13:44,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:44,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-03 02:13:44,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 43 proven. 139 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-03 02:13:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 122 states and 245 transitions. [2023-12-03 02:13:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 245 transitions. [2023-12-03 02:13:47,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 02:13:47,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:52,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-03 02:13:52,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 66 proven. 157 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-03 02:13:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 125 states and 251 transitions. [2023-12-03 02:13:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 251 transitions. [2023-12-03 02:13:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 02:13:53,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:53,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:53,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:13:53,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-03 02:13:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 126 states and 253 transitions. [2023-12-03 02:13:53,985 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 253 transitions. [2023-12-03 02:13:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 02:13:53,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:13:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:13:54,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-03 02:13:54,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:13:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 48 proven. 169 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-03 02:13:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:13:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 133 states and 268 transitions. [2023-12-03 02:13:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 268 transitions. [2023-12-03 02:13:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 02:13:56,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:13:56,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:14:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:01,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-03 02:14:01,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 68 proven. 195 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-03 02:14:02,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:02,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 136 states and 274 transitions. [2023-12-03 02:14:02,904 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 274 transitions. [2023-12-03 02:14:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 02:14:02,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:14:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:02,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:14:02,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 63 proven. 4 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-12-03 02:14:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:03,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 137 states and 276 transitions. [2023-12-03 02:14:03,434 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 276 transitions. [2023-12-03 02:14:03,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 02:14:03,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:14:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:03,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-03 02:14:03,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 53 proven. 202 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-03 02:14:06,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 144 states and 291 transitions. [2023-12-03 02:14:06,405 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 291 transitions. [2023-12-03 02:14:06,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 02:14:06,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:06,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:14:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 02:14:16,440 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 02:14:16,443 INFO L158 Benchmark]: Toolchain (without parser) took 65992.06ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 113.9MB in the beginning and 151.1MB in the end (delta: -37.2MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-12-03 02:14:16,443 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:14:16,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.89ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 103.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 02:14:16,444 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.70ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:14:16,444 INFO L158 Benchmark]: Boogie Preprocessor took 16.73ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 100.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:14:16,445 INFO L158 Benchmark]: RCFGBuilder took 305.53ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 88.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 02:14:16,445 INFO L158 Benchmark]: CodeCheck took 65400.50ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 88.4MB in the beginning and 151.1MB in the end (delta: -62.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-12-03 02:14:16,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 102.8MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.89ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 103.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.70ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.73ms. Allocated memory is still 155.2MB. Free memory was 101.7MB in the beginning and 100.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.53ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 88.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 65400.50ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 88.4MB in the beginning and 151.1MB in the end (delta: -62.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 02:14:16,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:14:18,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:14:18,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 02:14:18,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:14:18,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:14:18,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:14:18,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:14:18,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:14:18,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:14:18,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:14:18,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:14:18,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:14:18,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:14:18,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:14:18,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:14:18,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:14:18,346 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:14:18,346 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:14:18,347 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:14:18,347 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:14:18,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:14:18,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:14:18,353 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:14:18,354 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:14:18,354 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:14:18,354 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:18,355 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:14:18,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:14:18,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:14:18,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:14:18,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:14:18,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:14:18,357 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:14:18,357 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:18,358 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:14:18,358 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:14:18,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:14:18,359 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 [2023-12-03 02:14:18,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:14:18,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:14:18,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:14:18,692 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:14:18,692 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:14:18,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2023-12-03 02:14:21,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:14:21,648 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:14:21,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2023-12-03 02:14:21,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/71222bb62/dd5ca5af76564406933356b29a427409/FLAGa927e0c30 [2023-12-03 02:14:21,666 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/data/71222bb62/dd5ca5af76564406933356b29a427409 [2023-12-03 02:14:21,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:14:21,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:14:21,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:14:21,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:14:21,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:14:21,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1987b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21, skipping insertion in model container [2023-12-03 02:14:21,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,694 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:14:21,814 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c[458,471] [2023-12-03 02:14:21,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:14:21,841 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:14:21,851 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c[458,471] [2023-12-03 02:14:21,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:14:21,871 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:14:21,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21 WrapperNode [2023-12-03 02:14:21,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:14:21,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:14:21,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:14:21,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:14:21,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,904 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-03 02:14:21,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:14:21,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:14:21,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:14:21,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:14:21,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,923 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:14:21,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:14:21,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:14:21,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:14:21,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:14:21" (1/1) ... [2023-12-03 02:14:21,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:14:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:14:21,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:14:21,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:14:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:14:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:14:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:14:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:14:22,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:14:22,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:14:22,080 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:14:22,082 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:14:22,314 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:14:22,379 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:14:22,379 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:14:22,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:14:22 BoogieIcfgContainer [2023-12-03 02:14:22,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:14:22,381 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:14:22,381 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:14:22,391 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:14:22,392 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:14:22" (1/1) ... [2023-12-03 02:14:22,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:14:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-03 02:14:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-03 02:14:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 02:14:22,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:22,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:22,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:14:22,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:14:22,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:14:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:22,734 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:14:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:22,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:14:22,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:14:23,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:14:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2023-12-03 02:14:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2023-12-03 02:14:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:14:24,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:24,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:24,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:14:24,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:14:24,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:14:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:24,614 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:14:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:24,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:14:24,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:14:25,070 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:14:25,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:14:27,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:27,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2023-12-03 02:14:27,772 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2023-12-03 02:14:27,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 02:14:27,773 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:14:27,774 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:14:27,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:14:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:28,147 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:14:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:28,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:14:28,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:14:28,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 02:14:30,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:14:30,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 46 transitions. [2023-12-03 02:14:30,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 46 transitions. [2023-12-03 02:14:30,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 02:14:30,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:14:30,763 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:14:30,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:14:30,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:14:30,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 02:14:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:30,802 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:14:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:14:30,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:14:30,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:14:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:14:42,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 02:15:07,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:15:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 51 transitions. [2023-12-03 02:15:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 51 transitions. [2023-12-03 02:15:07,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:15:07,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:15:07,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:15:07,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:15:07,392 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:15:07,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 02:15:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:07,829 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:15:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:08,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:15:08,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:15:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:15:10,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 02:15:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:15:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 36 states and 68 transitions. [2023-12-03 02:15:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2023-12-03 02:15:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:15:21,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:15:21,820 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:15:21,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:15:21,821 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:15:21,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 02:15:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:22,384 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:15:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:22,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 02:15:22,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:15:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 02:15:23,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 02:15:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:15:29,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 39 states and 74 transitions. [2023-12-03 02:15:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2023-12-03 02:15:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:15:29,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:15:29,053 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:15:29,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:15:29,054 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:15:29,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 02:15:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:29,091 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:15:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:29,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:15:29,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:15:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-03 02:15:32,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 02:15:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:15:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 40 states and 77 transitions. [2023-12-03 02:15:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 77 transitions. [2023-12-03 02:15:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:15:48,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:15:48,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:15:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:15:48,346 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:15:48,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 02:15:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:48,953 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:15:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:15:49,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 02:15:49,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:15:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:15:52,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 02:16:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:16:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 44 states and 88 transitions. [2023-12-03 02:16:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 88 transitions. [2023-12-03 02:16:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:16:04,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:16:04,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:16:04,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:16:04,736 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:16:04,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 02:16:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:05,498 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:16:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:06,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:16:06,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:16:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:16:07,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 02:16:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:16:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 47 states and 94 transitions. [2023-12-03 02:16:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2023-12-03 02:16:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 02:16:14,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:16:14,217 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:16:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:16:14,218 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:16:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 02:16:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:14,255 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:16:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:14,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:16:14,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:16:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-03 02:16:18,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 02:16:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:16:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 48 states and 97 transitions. [2023-12-03 02:16:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 97 transitions. [2023-12-03 02:16:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 02:16:35,809 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:16:35,810 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:16:35,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:16:35,811 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:16:35,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 02:16:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:36,649 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:16:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:37,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:16:37,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:16:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 02:16:40,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 02:16:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:16:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 52 states and 108 transitions. [2023-12-03 02:16:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 108 transitions. [2023-12-03 02:16:54,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 02:16:54,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:16:54,339 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:16:54,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:16:54,340 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:16:54,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 02:16:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:55,378 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:16:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:16:56,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:16:56,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:16:57,551 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 37 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 02:16:57,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 02:17:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:17:05,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 55 states and 114 transitions. [2023-12-03 02:17:05,585 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 114 transitions. [2023-12-03 02:17:05,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 02:17:05,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:17:05,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:17:05,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:17:05,587 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:17:05,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 02:17:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:05,628 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:17:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:06,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:17:06,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:17:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-03 02:17:08,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 02:17:08,770 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:17:30,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:17:30,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 56 states and 117 transitions. [2023-12-03 02:17:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 117 transitions. [2023-12-03 02:17:30,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 02:17:30,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:17:30,326 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:17:30,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:17:30,327 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:17:30,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 02:17:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:31,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:17:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:32,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:17:32,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:17:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 9 proven. 43 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 02:17:37,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 02:17:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:17:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 60 states and 128 transitions. [2023-12-03 02:17:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 128 transitions. [2023-12-03 02:17:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 02:17:54,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:17:54,661 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:17:54,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:17:54,662 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:17:54,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 02:17:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:55,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:17:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:17:57,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 02:17:57,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:17:58,575 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 11 proven. 57 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-03 02:17:58,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 02:18:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 63 states and 134 transitions. [2023-12-03 02:18:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 134 transitions. [2023-12-03 02:18:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 02:18:08,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:08,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:18:08,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:18:08,357 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:18:08,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 02:18:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:08,401 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:18:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:09,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:18:09,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:18:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-03 02:18:12,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 02:18:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:34,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 64 states and 137 transitions. [2023-12-03 02:18:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2023-12-03 02:18:34,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 02:18:34,353 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:34,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:18:34,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:18:34,354 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:18:34,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 02:18:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:35,604 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:18:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:36,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 02:18:36,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:18:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 11 proven. 61 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-03 02:18:40,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 02:18:58,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:18:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 68 states and 148 transitions. [2023-12-03 02:18:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 148 transitions. [2023-12-03 02:18:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 02:18:58,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:58,938 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:18:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:18:58,939 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:18:58,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 02:19:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:00,377 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:19:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:01,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 02:19:01,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:19:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 13 proven. 80 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 02:19:03,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 02:19:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:19:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 71 states and 154 transitions. [2023-12-03 02:19:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 154 transitions. [2023-12-03 02:19:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 02:19:14,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:19:14,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:19:14,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:19:14,941 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:19:14,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 02:19:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:14,993 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:19:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:16,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:19:16,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:19:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-03 02:19:20,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 02:19:43,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:19:43,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 72 states and 157 transitions. [2023-12-03 02:19:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 157 transitions. [2023-12-03 02:19:43,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 02:19:43,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:19:43,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:19:43,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:19:43,635 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:19:43,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 02:19:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:45,147 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:19:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:19:46,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 02:19:46,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:19:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 13 proven. 82 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-03 02:19:53,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 02:20:18,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:20:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 76 states and 168 transitions. [2023-12-03 02:20:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 168 transitions. [2023-12-03 02:20:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 02:20:18,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:20:18,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:20:18,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:20:18,032 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:20:18,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 02:20:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:20:19,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:20:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:20:21,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:20:21,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:20:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 26 proven. 101 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-03 02:20:24,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 02:20:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:20:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 79 states and 174 transitions. [2023-12-03 02:20:37,020 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 174 transitions. [2023-12-03 02:20:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 02:20:37,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:20:37,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:20:37,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:20:37,022 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:20:37,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 02:20:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:20:37,079 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:20:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:20:38,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:20:38,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:20:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 39 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-03 02:20:42,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 02:21:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:21:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 80 states and 177 transitions. [2023-12-03 02:21:12,755 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 177 transitions. [2023-12-03 02:21:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 02:21:12,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:21:12,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:21:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:21:12,757 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:21:12,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 02:21:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:21:14,444 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:21:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:21:16,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:21:16,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:21:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 15 proven. 106 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-03 02:21:21,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 02:21:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:21:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 84 states and 188 transitions. [2023-12-03 02:21:47,380 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 188 transitions. [2023-12-03 02:21:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 02:21:47,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:21:47,381 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:21:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:21:47,382 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:21:47,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 02:21:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:21:49,221 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:21:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:21:51,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 02:21:51,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:21:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 28 proven. 133 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-03 02:21:53,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 02:22:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 87 states and 194 transitions. [2023-12-03 02:22:08,692 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 194 transitions. [2023-12-03 02:22:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 02:22:08,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:08,693 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:08,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:22:08,695 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:22:08,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 02:22:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:08,750 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:22:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:10,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:22:10,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:22:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-12-03 02:22:14,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 02:22:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 88 states and 197 transitions. [2023-12-03 02:22:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 197 transitions. [2023-12-03 02:22:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 02:22:43,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:43,780 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:22:43,781 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:22:43,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 02:22:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:45,851 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:22:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:47,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 02:22:47,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:23:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 37 proven. 131 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-03 02:23:07,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 02:23:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:23:47,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 92 states and 208 transitions. [2023-12-03 02:23:47,160 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 208 transitions. [2023-12-03 02:23:47,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 02:23:47,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:23:47,160 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:23:47,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:23:47,161 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:23:47,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 02:23:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:23:49,501 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:23:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:23:51,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 02:23:51,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:23:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 36 proven. 162 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-03 02:23:55,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 02:24:10,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:24:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 95 states and 214 transitions. [2023-12-03 02:24:10,225 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 214 transitions. [2023-12-03 02:24:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 02:24:10,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:24:10,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:24:10,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:24:10,228 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:24:10,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 02:24:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:24:10,278 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:24:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:24:11,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:24:11,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:24:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 02:24:16,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 02:24:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:24:47,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 96 states and 217 transitions. [2023-12-03 02:24:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 217 transitions. [2023-12-03 02:24:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 02:24:47,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:24:47,782 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:24:47,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:24:47,783 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:24:47,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 02:24:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:24:50,048 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:24:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:24:52,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 02:24:52,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:25:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 19 proven. 163 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-03 02:25:06,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 02:25:49,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:25:52,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:25:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:25:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 100 states and 228 transitions. [2023-12-03 02:25:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 228 transitions. [2023-12-03 02:25:52,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 02:25:52,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:25:52,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:25:52,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:25:52,105 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:25:52,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 02:25:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:25:54,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:25:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:25:56,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 02:25:56,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:26:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 38 proven. 200 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-12-03 02:26:01,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-12-03 02:26:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:26:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 103 states and 234 transitions. [2023-12-03 02:26:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 234 transitions. [2023-12-03 02:26:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 02:26:20,789 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:26:20,789 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:26:20,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:26:20,790 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:26:20,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 02:26:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:26:20,855 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:26:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:26:23,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:26:23,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:26:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 57 proven. 4 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-03 02:26:28,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 02:27:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:27:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 104 states and 237 transitions. [2023-12-03 02:27:05,479 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 237 transitions. [2023-12-03 02:27:05,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 02:27:05,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:27:05,480 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:27:05,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:27:05,481 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:27:05,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 02:27:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:27:08,002 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:27:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:27:10,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 02:27:10,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:27:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 21 proven. 196 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-03 02:27:22,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cbe71fd-a2dc-4b93-87a8-f03d62f1755d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0