./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/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_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/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_d81a60c0-1932-4d33-90c1-1f634a22764f/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 b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 23:58:34,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 23:58:34,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 23:58:34,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 23:58:34,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 23:58:34,435 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 23:58:34,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 23:58:34,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 23:58:34,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 23:58:34,438 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 23:58:34,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 23:58:34,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 23:58:34,439 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 23:58:34,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 23:58:34,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 23:58:34,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 23:58:34,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 23:58:34,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 23:58:34,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 23:58:34,443 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 23:58:34,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 23:58:34,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 23:58:34,449 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 23:58:34,449 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 23:58:34,449 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 23:58:34,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 23:58:34,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:58:34,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 23:58:34,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 23:58:34,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 23:58:34,451 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 23:58:34,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 23:58:34,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 23:58:34,452 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_d81a60c0-1932-4d33-90c1-1f634a22764f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 [2023-12-02 23:58:34,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 23:58:34,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 23:58:34,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 23:58:34,694 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 23:58:34,695 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 23:58:34,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/array-fpi/ifeqn4.c [2023-12-02 23:58:37,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 23:58:37,689 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 23:58:37,690 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c [2023-12-02 23:58:37,697 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/702a91bfe/fb339f7eeb65435697eba2cbe23b23f7/FLAG730524441 [2023-12-02 23:58:37,710 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/702a91bfe/fb339f7eeb65435697eba2cbe23b23f7 [2023-12-02 23:58:37,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 23:58:37,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 23:58:37,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 23:58:37,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 23:58:37,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 23:58:37,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ff9923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37, skipping insertion in model container [2023-12-02 23:58:37,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,738 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 23:58:37,869 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_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2023-12-02 23:58:37,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:58:37,900 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 23:58:37,910 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_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2023-12-02 23:58:37,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 23:58:37,934 INFO L206 MainTranslator]: Completed translation [2023-12-02 23:58:37,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37 WrapperNode [2023-12-02 23:58:37,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 23:58:37,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 23:58:37,936 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 23:58:37,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 23:58:37,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,973 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-12-02 23:58:37,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 23:58:37,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 23:58:37,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 23:58:37,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 23:58:37,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:37,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 23:58:38,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 23:58:38,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 23:58:38,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 23:58:38,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:58:37" (1/1) ... [2023-12-02 23:58:38,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 23:58:38,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 23:58:38,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 23:58:38,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 23:58:38,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 23:58:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 23:58:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 23:58:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 23:58:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 23:58:38,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 23:58:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 23:58:38,142 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 23:58:38,144 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 23:58:38,293 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 23:58:38,367 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 23:58:38,368 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 23:58:38,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:58:38 BoogieIcfgContainer [2023-12-02 23:58:38,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 23:58:38,370 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 23:58:38,371 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 23:58:38,382 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 23:58:38,382 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:58:38" (1/1) ... [2023-12-02 23:58:38,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 23:58:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2023-12-02 23:58:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2023-12-02 23:58:38,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 23:58:38,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:38,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:38,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:58:38,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-02 23:58:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-02 23:58:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 23:58:38,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:38,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:38,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:58:38,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-12-02 23:58:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-12-02 23:58:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:58:38,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:38,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:38,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:58:39,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:39,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 16 states and 26 transitions. [2023-12-02 23:58:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 26 transitions. [2023-12-02 23:58:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 23:58:39,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:39,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:58:39,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:40,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 31 transitions. [2023-12-02 23:58:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 31 transitions. [2023-12-02 23:58:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 23:58:40,001 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:40,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:40,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:58:40,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:40,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:40,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:41,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2023-12-02 23:58:41,305 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2023-12-02 23:58:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:58:41,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:41,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:58:41,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:41,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2023-12-02 23:58:41,922 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2023-12-02 23:58:41,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 23:58:41,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:41,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:41,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:58:41,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 46 transitions. [2023-12-02 23:58:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2023-12-02 23:58:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:58:43,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:43,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:58:43,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:43,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:43,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:43,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:43,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2023-12-02 23:58:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2023-12-02 23:58:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:58:43,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:44,099 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:58:44,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:44,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:58:44,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:44,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:58:44,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:58:44,591 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:58:44,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:58:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 36 states and 59 transitions. [2023-12-02 23:58:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 59 transitions. [2023-12-02 23:58:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 23:58:48,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:48,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:48,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:58:48,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 41 states and 71 transitions. [2023-12-02 23:58:50,824 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 71 transitions. [2023-12-02 23:58:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:58:50,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:50,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:50,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:58:50,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:51,342 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:58:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 68 transitions. [2023-12-02 23:58:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2023-12-02 23:58:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 23:58:51,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:51,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:52,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:58:52,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:52,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:52,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:52,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:52,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:58:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:58:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 42 states and 69 transitions. [2023-12-02 23:58:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2023-12-02 23:58:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:58:53,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:53,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:53,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 23:58:53,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:53,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:58:53,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:58:53,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:58:53,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:58:54,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:58:54,428 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:58:54,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 48 [2023-12-02 23:58:54,600 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:58:54,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 51 treesize of output 51 [2023-12-02 23:58:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:58:58,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:58:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 46 states and 75 transitions. [2023-12-02 23:58:58,114 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 75 transitions. [2023-12-02 23:58:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:58:58,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:58:58,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:58:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:58:58,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:58:58,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:58:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 52 states and 90 transitions. [2023-12-02 23:59:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2023-12-02 23:59:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 23:59:01,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:01,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:01,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:59:01,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:59:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:02,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 52 states and 85 transitions. [2023-12-02 23:59:02,748 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 85 transitions. [2023-12-02 23:59:02,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 23:59:02,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:02,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:02,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:59:02,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:59:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 59 states and 96 transitions. [2023-12-02 23:59:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 96 transitions. [2023-12-02 23:59:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 23:59:06,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:06,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:07,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 23:59:07,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:07,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:07,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:07,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:07,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:07,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:59:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 60 states and 97 transitions. [2023-12-02 23:59:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 97 transitions. [2023-12-02 23:59:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 23:59:08,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:08,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:08,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:59:08,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 23:59:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2023-12-02 23:59:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2023-12-02 23:59:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 23:59:10,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:10,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:10,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-02 23:59:10,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:10,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:59:10,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:10,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:59:10,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:59:11,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:59:11,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-02 23:59:11,726 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:59:11,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 47 treesize of output 58 [2023-12-02 23:59:11,956 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:59:11,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 58 treesize of output 61 [2023-12-02 23:59:12,180 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:59:12,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 58 treesize of output 61 [2023-12-02 23:59:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 56 states and 85 transitions. [2023-12-02 23:59:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 85 transitions. [2023-12-02 23:59:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 23:59:18,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:18,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:18,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:59:18,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2023-12-02 23:59:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2023-12-02 23:59:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:59:23,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:23,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:23,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 23:59:23,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:23,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:59:23,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:23,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:59:23,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:59:23,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:59:23,767 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:59:23,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 48 [2023-12-02 23:59:23,965 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-12-02 23:59:23,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 47 treesize of output 58 [2023-12-02 23:59:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 70 states and 110 transitions. [2023-12-02 23:59:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 110 transitions. [2023-12-02 23:59:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:59:32,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:32,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:35,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 23:59:35,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:36,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:36,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:36,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:36,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:36,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:36,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 23:59:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:59:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:37,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 71 states and 111 transitions. [2023-12-02 23:59:37,601 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2023-12-02 23:59:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:59:37,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:37,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:39,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-02 23:59:39,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:39,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:59:39,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:39,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:59:39,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:59:39,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:59:39,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-02 23:59:40,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58 [2023-12-02 23:59:40,600 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:59:40,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 68 [2023-12-02 23:59:40,922 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:59:40,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 23:59:41,208 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:59:41,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 23:59:41,519 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-02 23:59:41,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 65 treesize of output 71 [2023-12-02 23:59:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 77 states and 120 transitions. [2023-12-02 23:59:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 120 transitions. [2023-12-02 23:59:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 23:59:51,146 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:51,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:51,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:59:51,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:52,871 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 28 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:59:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:59:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 85 states and 135 transitions. [2023-12-02 23:59:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2023-12-02 23:59:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 23:59:58,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:59:58,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 23:59:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:59:59,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-02 23:59:59,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:59:59,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-02 23:59:59,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 23:59:59,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 23:59:59,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-02 23:59:59,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-02 23:59:59,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-02 23:59:59,650 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-02 23:59:59,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 47 treesize of output 58 [2023-12-02 23:59:59,986 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-12-02 23:59:59,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 68 [2023-12-03 00:00:00,324 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2023-12-03 00:00:00,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 65 treesize of output 71 [2023-12-03 00:00:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:00:06,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 85 states and 134 transitions. [2023-12-03 00:00:06,745 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 134 transitions. [2023-12-03 00:00:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 00:00:06,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:06,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:00:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:06,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 00:00:06,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:00:10,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 85 states and 132 transitions. [2023-12-03 00:00:10,925 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 132 transitions. [2023-12-03 00:00:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 00:00:10,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:00:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:17,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 80 conjunts are in the unsatisfiable core [2023-12-03 00:00:17,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:17,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:00:17,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-03 00:00:17,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-03 00:00:17,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-03 00:00:17,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-03 00:00:17,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-03 00:00:17,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58 [2023-12-03 00:00:18,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 68 [2023-12-03 00:00:19,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 78 [2023-12-03 00:00:19,582 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2023-12-03 00:00:19,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:00:19,941 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-03 00:00:19,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 37 case distinctions, treesize of input 92 treesize of output 100 [2023-12-03 00:00:20,327 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2023-12-03 00:00:20,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 46 case distinctions, treesize of input 105 treesize of output 112 [2023-12-03 00:00:20,786 INFO L349 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2023-12-03 00:00:20,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 56 case distinctions, treesize of input 118 treesize of output 124 [2023-12-03 00:00:21,245 INFO L349 Elim1Store]: treesize reduction 59, result has 10.6 percent of original size [2023-12-03 00:00:21,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 21 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 67 case distinctions, treesize of input 120 treesize of output 136 [2023-12-03 00:00:21,781 INFO L349 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2023-12-03 00:00:21,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 21 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 79 case distinctions, treesize of input 131 treesize of output 139 [2023-12-03 00:00:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:00:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 93 states and 146 transitions. [2023-12-03 00:00:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2023-12-03 00:00:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 00:00:38,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:38,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:00:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:38,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:00:38,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:00:47,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:00:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 103 states and 161 transitions. [2023-12-03 00:00:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions. [2023-12-03 00:00:47,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 00:00:47,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:00:47,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:00:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:00:50,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-03 00:00:50,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:00:50,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:00:50,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-03 00:00:50,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-03 00:00:50,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-03 00:00:50,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-03 00:00:50,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-03 00:00:50,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58 [2023-12-03 00:00:51,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 68 [2023-12-03 00:00:51,459 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-03 00:00:51,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 61 treesize of output 78 [2023-12-03 00:00:51,935 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-03 00:00:51,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:00:52,397 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-03 00:00:52,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:00:52,878 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-03 00:00:52,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:00:53,415 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2023-12-03 00:00:53,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:00:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:01:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 110 states and 171 transitions. [2023-12-03 00:01:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 171 transitions. [2023-12-03 00:01:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 00:01:07,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:07,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:01:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:07,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 00:01:07,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 36 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:01:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 119 states and 188 transitions. [2023-12-03 00:01:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 188 transitions. [2023-12-03 00:01:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:01:24,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:24,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:01:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:26,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 66 conjunts are in the unsatisfiable core [2023-12-03 00:01:26,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:26,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:01:26,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-03 00:01:26,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-03 00:01:26,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-12-03 00:01:26,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-12-03 00:01:26,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-12-03 00:01:26,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 58 [2023-12-03 00:01:26,712 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-03 00:01:26,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 54 treesize of output 68 [2023-12-03 00:01:27,201 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-12-03 00:01:27,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 61 treesize of output 78 [2023-12-03 00:01:27,758 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2023-12-03 00:01:27,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:01:28,212 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2023-12-03 00:01:28,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 72 treesize of output 81 [2023-12-03 00:01:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:01:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 123 states and 192 transitions. [2023-12-03 00:01:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 192 transitions. [2023-12-03 00:01:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 00:01:39,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:01:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 00:01:49,585 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 00:01:49,587 INFO L158 Benchmark]: Toolchain (without parser) took 191874.07ms. Allocated memory was 148.9MB in the beginning and 1.1GB in the end (delta: 983.6MB). Free memory was 109.9MB in the beginning and 830.6MB in the end (delta: -720.7MB). Peak memory consumption was 263.3MB. Max. memory is 16.1GB. [2023-12-03 00:01:49,588 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 148.9MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:01:49,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.67ms. Allocated memory is still 148.9MB. Free memory was 109.4MB in the beginning and 98.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:01:49,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.96ms. Allocated memory is still 148.9MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:01:49,588 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 95.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:01:49,589 INFO L158 Benchmark]: RCFGBuilder took 369.81ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 79.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 00:01:49,589 INFO L158 Benchmark]: CodeCheck took 191216.58ms. Allocated memory was 148.9MB in the beginning and 1.1GB in the end (delta: 983.6MB). Free memory was 79.1MB in the beginning and 830.6MB in the end (delta: -751.5MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. [2023-12-03 00:01:49,591 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 0.24ms. Allocated memory is still 148.9MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.67ms. Allocated memory is still 148.9MB. Free memory was 109.4MB in the beginning and 98.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.96ms. Allocated memory is still 148.9MB. Free memory was 98.5MB in the beginning and 96.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 148.9MB. Free memory was 96.8MB in the beginning and 95.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.81ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 79.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 191216.58ms. Allocated memory was 148.9MB in the beginning and 1.1GB in the end (delta: 983.6MB). Free memory was 79.1MB in the beginning and 830.6MB in the end (delta: -751.5MB). Peak memory consumption was 233.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 00:01:49,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/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_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/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_d81a60c0-1932-4d33-90c1-1f634a22764f/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 b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:01:51,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:01:51,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 00:01:51,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:01:51,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:01:51,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:01:51,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:01:51,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:01:51,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:01:51,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:01:51,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:01:51,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:01:51,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:01:51,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:01:51,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:01:51,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:01:51,644 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:01:51,645 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:01:51,645 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:01:51,646 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:01:51,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:01:51,647 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:01:51,647 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:01:51,648 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:01:51,648 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:01:51,649 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:51,649 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:01:51,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:01:51,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:01:51,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:01:51,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:01:51,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:01:51,652 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:01:51,653 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:51,653 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:01:51,653 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:01:51,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:01:51,654 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_d81a60c0-1932-4d33-90c1-1f634a22764f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0db5597ff96f0e5a728327333d32dd7df56f4b1fb643f99ebf0f69cacecd717 [2023-12-03 00:01:51,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:01:51,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:01:51,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:01:51,961 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:01:51,962 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:01:51,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/array-fpi/ifeqn4.c [2023-12-03 00:01:54,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:01:54,988 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:01:54,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c [2023-12-03 00:01:54,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/6befcce89/52919c807f7447d1a1315b5ff4013053/FLAG6790c44e3 [2023-12-03 00:01:55,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/data/6befcce89/52919c807f7447d1a1315b5ff4013053 [2023-12-03 00:01:55,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:01:55,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:01:55,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:01:55,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:01:55,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:01:55,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2892d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55, skipping insertion in model container [2023-12-03 00:01:55,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,036 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:01:55,159 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_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2023-12-03 00:01:55,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:01:55,192 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:01:55,202 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_d81a60c0-1932-4d33-90c1-1f634a22764f/sv-benchmarks/c/array-fpi/ifeqn4.c[589,602] [2023-12-03 00:01:55,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:01:55,227 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:01:55,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55 WrapperNode [2023-12-03 00:01:55,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:01:55,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:01:55,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:01:55,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:01:55,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,264 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-12-03 00:01:55,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:01:55,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:01:55,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:01:55,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:01:55,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:01:55,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:01:55,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:01:55,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:01:55,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:01:55,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:01:55,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:01:55,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:01:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:01:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:01:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-12-03 00:01:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 00:01:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:01:55,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:01:55,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-12-03 00:01:55,430 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:01:55,432 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:01:55,786 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:01:55,863 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:01:55,863 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-03 00:01:55,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:01:55 BoogieIcfgContainer [2023-12-03 00:01:55,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:01:55,866 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:01:55,866 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:01:55,876 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:01:55,877 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:01:55" (1/1) ... [2023-12-03 00:01:55,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:01:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:55,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2023-12-03 00:01:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2023-12-03 00:01:55,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 00:01:55,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:55,942 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:55,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:55,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:55,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:01:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:56,095 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:56,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 00:01:56,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:56,259 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 00:01:56,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:01:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-12-03 00:01:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-12-03 00:01:56,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:01:56,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:56,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:56,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:56,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:56,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:01:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:56,591 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:56,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 00:01:56,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:01:56,732 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:01:56,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-12-03 00:01:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2023-12-03 00:01:56,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2023-12-03 00:01:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:01:56,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:56,981 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:56,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:56,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:56,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 00:01:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:57,284 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:57,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:01:57,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:01:57,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:01:57,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:01:57,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 29 [2023-12-03 00:01:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:01:57,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 00:01:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:01:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 17 states and 30 transitions. [2023-12-03 00:01:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 30 transitions. [2023-12-03 00:01:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 00:01:58,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:01:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:01:58,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:01:58,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:01:58,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 00:01:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:59,176 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:01:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:01:59,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 00:01:59,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:01:59,496 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 00:01:59,500 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:01:59,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 00:02:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 20 states and 37 transitions. [2023-12-03 00:02:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 37 transitions. [2023-12-03 00:02:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 00:02:00,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:00,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:00,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:00,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:00,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 00:02:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:01,059 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:01,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 00:02:01,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:02:01,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:02:01,478 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:02:01,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:02:01,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:02:01,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 55 [2023-12-03 00:02:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:02:02,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 00:02:04,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:04,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 22 states and 44 transitions. [2023-12-03 00:02:04,742 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 44 transitions. [2023-12-03 00:02:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 00:02:04,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:04,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:04,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:04,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:04,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 00:02:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:04,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:05,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 00:02:05,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:02:05,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 00:02:05,260 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:02:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 26 states and 52 transitions. [2023-12-03 00:02:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 52 transitions. [2023-12-03 00:02:06,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 00:02:06,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:06,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:06,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:06,887 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:06,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 00:02:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:07,084 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:07,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:02:07,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:02:07,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 00:02:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 30 states and 61 transitions. [2023-12-03 00:02:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 61 transitions. [2023-12-03 00:02:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:02:10,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:10,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:10,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:10,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:10,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 00:02:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:11,221 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:11,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 00:02:11,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:11,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:02:11,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:02:11,575 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:02:11,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:02:11,878 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-03 00:02:11,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 85 treesize of output 90 [2023-12-03 00:02:12,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:02:12,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 120 treesize of output 92 [2023-12-03 00:02:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:02:12,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 00:02:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 31 states and 64 transitions. [2023-12-03 00:02:15,804 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 64 transitions. [2023-12-03 00:02:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:02:15,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:15,805 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:15,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:15,806 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:15,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 00:02:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:16,624 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:16,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:02:16,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:16,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:02:17,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:02:17,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:02:17,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:02:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:02:18,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 71 [2023-12-03 00:02:18,371 INFO L349 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2023-12-03 00:02:18,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 127 treesize of output 105 [2023-12-03 00:02:20,576 INFO L349 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2023-12-03 00:02:20,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 81 [2023-12-03 00:02:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:02:20,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 00:02:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:38,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 41 states and 89 transitions. [2023-12-03 00:02:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 89 transitions. [2023-12-03 00:02:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:02:38,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:38,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:38,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:38,465 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:38,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 00:02:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:38,700 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:38,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 00:02:38,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 00:02:39,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 00:02:43,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:43,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 42 states and 89 transitions. [2023-12-03 00:02:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 89 transitions. [2023-12-03 00:02:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 00:02:43,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:43,173 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:43,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:43,174 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:43,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 00:02:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:43,390 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:43,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 00:02:43,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:02:45,392 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:02:45,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 00:02:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:54,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 47 states and 103 transitions. [2023-12-03 00:02:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 103 transitions. [2023-12-03 00:02:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:02:54,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:54,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:54,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:54,586 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:54,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 00:02:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:54,831 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:54,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 00:02:54,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:02:56,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 00:02:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:02:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 47 states and 101 transitions. [2023-12-03 00:02:59,007 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 101 transitions. [2023-12-03 00:02:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:02:59,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:02:59,008 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:02:59,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:02:59,009 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:02:59,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 00:02:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:59,356 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:02:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:02:59,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 00:02:59,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:02:59,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:02:59,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:02:59,696 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:02:59,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:02:59,751 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-03 00:02:59,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 85 treesize of output 90 [2023-12-03 00:03:00,503 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-03 00:03:00,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 115 treesize of output 128 [2023-12-03 00:03:02,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:03:02,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 21 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 150 treesize of output 118 [2023-12-03 00:03:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 00:03:02,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 00:03:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:03:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 48 states and 104 transitions. [2023-12-03 00:03:09,929 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 104 transitions. [2023-12-03 00:03:09,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:03:09,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:03:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:03:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:03:09,931 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:03:09,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 00:03:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:11,428 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:03:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:11,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 00:03:11,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:03:11,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:03:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:03:12,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:03:12,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:03:13,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2023-12-03 00:03:14,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:03:14,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 117 [2023-12-03 00:03:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:03:15,140 INFO L349 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2023-12-03 00:03:15,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 123 treesize of output 139 [2023-12-03 00:03:15,886 INFO L349 Elim1Store]: treesize reduction 75, result has 16.7 percent of original size [2023-12-03 00:03:15,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 47 case distinctions, treesize of input 166 treesize of output 169 [2023-12-03 00:03:19,261 INFO L349 Elim1Store]: treesize reduction 37, result has 9.8 percent of original size [2023-12-03 00:03:19,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 15 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 191 treesize of output 119 [2023-12-03 00:03:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:03:19,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-12-03 00:03:36,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:03:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 53 states and 117 transitions. [2023-12-03 00:03:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 117 transitions. [2023-12-03 00:03:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:03:36,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:03:36,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:03:36,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:03:36,041 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:03:36,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 00:03:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:36,307 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:03:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:36,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:03:36,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:03:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 00:03:38,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 00:03:42,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:03:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 53 states and 115 transitions. [2023-12-03 00:03:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 115 transitions. [2023-12-03 00:03:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:03:42,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:03:42,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:03:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:03:42,130 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:03:42,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 00:03:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:42,430 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:03:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:42,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:03:42,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:03:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 00:03:42,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 00:03:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:03:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 54 states and 116 transitions. [2023-12-03 00:03:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 116 transitions. [2023-12-03 00:03:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:03:44,796 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:03:44,796 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:03:44,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:03:44,797 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:03:44,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 00:03:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:45,079 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:03:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:03:45,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 00:03:45,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:03:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:03:48,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 00:04:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:04:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 60 states and 128 transitions. [2023-12-03 00:04:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 128 transitions. [2023-12-03 00:04:05,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:04:05,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:04:05,694 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:04:05,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:04:05,695 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:04:05,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 00:04:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:04:06,065 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:04:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:04:06,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:04:06,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:04:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 00:04:07,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 00:04:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:04:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 67 states and 142 transitions. [2023-12-03 00:04:24,865 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 142 transitions. [2023-12-03 00:04:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:04:24,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:04:24,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:04:24,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:04:24,867 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:04:24,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 00:04:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:04:25,330 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:04:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:04:25,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 00:04:25,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:04:29,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:04:29,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:04:30,157 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:04:30,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:04:31,123 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-03 00:04:31,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 82 treesize of output 91 [2023-12-03 00:04:32,444 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-03 00:04:32,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 112 treesize of output 129 [2023-12-03 00:04:34,002 INFO L349 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2023-12-03 00:04:34,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 45 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 142 treesize of output 167 [2023-12-03 00:04:37,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:04:37,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 36 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 212 treesize of output 160 [2023-12-03 00:04:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:04:37,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 00:05:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:05:00,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 73 states and 152 transitions. [2023-12-03 00:05:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 152 transitions. [2023-12-03 00:05:00,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:05:00,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:05:00,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:05:00,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:05:00,238 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:05:00,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 00:05:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:05:02,414 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:05:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:05:02,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 00:05:02,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:05:02,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:05:02,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:05:02,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:05:02,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:05:03,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2023-12-03 00:05:04,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 107 [2023-12-03 00:05:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:05:07,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 30 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 171 [2023-12-03 00:05:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:05:08,759 INFO L349 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2023-12-03 00:05:08,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 47 case distinctions, treesize of input 187 treesize of output 209 [2023-12-03 00:05:09,835 INFO L349 Elim1Store]: treesize reduction 75, result has 16.7 percent of original size [2023-12-03 00:05:09,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 68 case distinctions, treesize of input 250 treesize of output 259 [2023-12-03 00:05:11,086 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2023-12-03 00:05:11,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 28 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 284 treesize of output 295 [2023-12-03 00:05:17,170 INFO L349 Elim1Store]: treesize reduction 53, result has 7.0 percent of original size [2023-12-03 00:05:17,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 28 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 349 treesize of output 265 [2023-12-03 00:05:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:05:17,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-12-03 00:05:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:05:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 79 states and 164 transitions. [2023-12-03 00:05:50,727 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 164 transitions. [2023-12-03 00:05:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:05:50,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:05:50,728 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:05:50,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:05:50,731 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:05:50,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 00:05:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:05:51,077 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:05:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:05:51,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 00:05:51,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:05:56,795 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:05:56,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 00:06:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 80 states and 167 transitions. [2023-12-03 00:06:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 167 transitions. [2023-12-03 00:06:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:06:08,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:06:08,317 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:08,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:06:08,318 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:06:08,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 00:06:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:08,682 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:06:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:08,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 00:06:08,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:06:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:06:15,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 00:06:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 83 states and 167 transitions. [2023-12-03 00:06:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 167 transitions. [2023-12-03 00:06:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:06:38,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:06:38,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:38,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:06:38,256 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:06:38,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 00:06:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:41,016 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:06:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:41,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-03 00:06:41,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:06:41,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:06:41,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:06:41,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:06:41,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:06:41,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2023-12-03 00:06:42,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 80 [2023-12-03 00:06:43,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 129 [2023-12-03 00:06:44,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 16 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 181 [2023-12-03 00:06:55,229 INFO L349 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2023-12-03 00:06:55,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 228 treesize of output 156 [2023-12-03 00:06:55,252 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:06:55,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 00:07:46,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:07:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 91 states and 193 transitions. [2023-12-03 00:07:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 193 transitions. [2023-12-03 00:07:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:07:46,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:07:46,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:07:46,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:07:46,842 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:07:46,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 00:07:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:07:47,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:07:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:07:47,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 00:07:47,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:07:50,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:07:50,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:07:50,868 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:07:50,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:07:51,194 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-03 00:07:51,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 85 treesize of output 90 [2023-12-03 00:07:51,951 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-03 00:07:51,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 115 treesize of output 128 [2023-12-03 00:07:53,803 INFO L349 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2023-12-03 00:07:53,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 45 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 155 treesize of output 176 [2023-12-03 00:07:56,028 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2023-12-03 00:07:56,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 66 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 217 treesize of output 230 [2023-12-03 00:08:04,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:08:04,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 21 select indices, 21 select index equivalence classes, 55 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 293 treesize of output 209 [2023-12-03 00:08:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 00:08:04,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 00:08:29,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 00:08:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:08:41,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 93 states and 201 transitions. [2023-12-03 00:08:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 201 transitions. [2023-12-03 00:08:41,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 00:08:41,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:08:41,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:08:41,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:08:41,510 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:08:41,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 00:08:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:08:45,154 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:08:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:08:45,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-03 00:08:45,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:08:45,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:08:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:08:45,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:08:45,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:08:46,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 79 [2023-12-03 00:08:48,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 139 [2023-12-03 00:08:49,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 46 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 245 [2023-12-03 00:08:53,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:08:53,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 47 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 267 [2023-12-03 00:08:54,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:08:54,932 INFO L349 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2023-12-03 00:08:54,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 46 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 68 case distinctions, treesize of input 311 treesize of output 339 [2023-12-03 00:08:56,661 INFO L349 Elim1Store]: treesize reduction 75, result has 16.7 percent of original size [2023-12-03 00:08:56,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 45 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 352 treesize of output 359 [2023-12-03 00:08:58,480 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2023-12-03 00:08:58,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 45 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 122 case distinctions, treesize of input 445 treesize of output 458 [2023-12-03 00:09:00,384 INFO L349 Elim1Store]: treesize reduction 107, result has 12.3 percent of original size [2023-12-03 00:09:00,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 45 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 155 case distinctions, treesize of input 493 treesize of output 516 [2023-12-03 00:09:08,629 INFO L349 Elim1Store]: treesize reduction 69, result has 5.5 percent of original size [2023-12-03 00:09:08,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 45 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 549 treesize of output 445 [2023-12-03 00:09:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:09:08,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 00:09:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:09:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 100 states and 214 transitions. [2023-12-03 00:09:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 214 transitions. [2023-12-03 00:09:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 00:09:48,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:09:48,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:09:48,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:09:48,470 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:09:48,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 00:09:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:09:48,902 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:09:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:09:49,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 00:09:49,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:09:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:09:58,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 00:10:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 108 states and 229 transitions. [2023-12-03 00:10:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 229 transitions. [2023-12-03 00:10:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 00:10:54,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:54,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:54,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:10:54,535 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:10:54,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 00:10:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:59,162 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:10:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:59,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-03 00:10:59,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:10:59,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-12-03 00:10:59,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:10:59,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:10:59,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2023-12-03 00:11:00,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 16 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2023-12-03 00:11:01,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 29 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 107 [2023-12-03 00:11:03,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 132 [2023-12-03 00:11:05,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 183 [2023-12-03 00:11:07,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 29 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 289 [2023-12-03 00:11:09,416 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2023-12-03 00:11:09,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 28 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 93 case distinctions, treesize of input 316 treesize of output 311 [2023-12-03 00:11:27,968 INFO L349 Elim1Store]: treesize reduction 53, result has 7.0 percent of original size [2023-12-03 00:11:27,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 28 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 365 treesize of output 253 [2023-12-03 00:11:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:11:27,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 00:12:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:12:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 109 states and 231 transitions. [2023-12-03 00:12:01,368 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 231 transitions. [2023-12-03 00:12:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 00:12:01,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:12:01,368 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:12:01,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:12:01,369 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:12:01,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 00:12:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:12:01,955 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:12:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:12:02,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-03 00:12:02,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:12:08,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 00:12:08,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-12-03 00:12:10,103 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-12-03 00:12:10,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 51 [2023-12-03 00:12:11,829 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-12-03 00:12:11,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 88 treesize of output 89 [2023-12-03 00:12:13,883 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-12-03 00:12:13,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 112 treesize of output 129 [2023-12-03 00:12:16,697 INFO L349 Elim1Store]: treesize reduction 64, result has 1.5 percent of original size [2023-12-03 00:12:16,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 45 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 187 treesize of output 192 [2023-12-03 00:12:19,714 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2023-12-03 00:12:19,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 20 select indices, 20 select index equivalence classes, 66 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 268 treesize of output 253 [2023-12-03 00:12:23,970 INFO L349 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2023-12-03 00:12:23,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 24 select indices, 24 select index equivalence classes, 91 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 298 treesize of output 291 [2023-12-03 00:12:31,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 00:12:31,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 25 select indices, 25 select index equivalence classes, 78 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 300 case distinctions, treesize of input 323 treesize of output 235 [2023-12-03 00:12:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:12:31,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d81a60c0-1932-4d33-90c1-1f634a22764f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0