./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/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 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:23:38,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:23:39,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:23:39,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:23:39,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:23:39,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:23:39,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:23:39,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:23:39,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:23:39,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:23:39,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:23:39,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:23:39,033 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:23:39,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:23:39,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:23:39,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:23:39,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:23:39,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:23:39,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:23:39,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:23:39,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:23:39,040 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:23:39,040 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:23:39,041 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:23:39,041 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:23:39,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:23:39,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:39,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:23:39,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:23:39,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:23:39,044 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:23:39,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:23:39,044 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:23:39,044 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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e94830d11d546a3c5eb98e6802b079c63f07b0a4b705dd9e7cd9e09e0492555 [2023-12-03 01:23:39,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:23:39,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:23:39,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:23:39,292 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:23:39,293 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:23:39,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2023-12-03 01:23:42,100 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:23:42,253 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:23:42,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2023-12-03 01:23:42,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/data/fead0320f/104115bdccbe4e809d28fbf61e6cc3d0/FLAG64ff5eca7 [2023-12-03 01:23:42,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/data/fead0320f/104115bdccbe4e809d28fbf61e6cc3d0 [2023-12-03 01:23:42,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:23:42,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:23:42,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:42,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:23:42,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:23:42,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76013219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42, skipping insertion in model container [2023-12-03 01:23:42,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,306 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:23:42,427 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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2023-12-03 01:23:42,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:42,450 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:23:42,460 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_e1bb326a-6b7f-4540-bb25-a129a9d1c486/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2023-12-03 01:23:42,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:42,479 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:23:42,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42 WrapperNode [2023-12-03 01:23:42,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:42,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:42,481 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:23:42,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:23:42,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,507 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-12-03 01:23:42,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:42,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:23:42,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:23:42,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:23:42,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,527 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:23:42,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:23:42,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:23:42,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:23:42,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:23:42,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:23:42,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:23:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:23:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:23:42,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:23:42,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:23:42,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:23:42,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:23:42,656 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:23:42,659 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:23:42,783 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:23:42,824 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:23:42,824 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:23:42,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:42 BoogieIcfgContainer [2023-12-03 01:23:42,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:23:42,827 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:23:42,827 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:23:42,835 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:23:42,835 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:42" (1/1) ... [2023-12-03 01:23:42,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:23:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2023-12-03 01:23:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2023-12-03 01:23:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 01:23:42,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:42,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:43,172 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 01:23:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2023-12-03 01:23:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2023-12-03 01:23:43,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 01:23:43,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:43,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:23:43,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:23:43,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 24 states and 39 transitions. [2023-12-03 01:23:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2023-12-03 01:23:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 01:23:43,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:43,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:43,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:23:43,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:23:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 42 transitions. [2023-12-03 01:23:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2023-12-03 01:23:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 01:23:43,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:43,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:44,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:44,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 01:23:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2023-12-03 01:23:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2023-12-03 01:23:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 01:23:44,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:44,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 01:23:44,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 01:23:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2023-12-03 01:23:44,505 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2023-12-03 01:23:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 01:23:44,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:44,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:44,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:44,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 01:23:44,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2023-12-03 01:23:44,796 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2023-12-03 01:23:44,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:23:44,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:44,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:44,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 01:23:44,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 01:23:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2023-12-03 01:23:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2023-12-03 01:23:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:23:45,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:45,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:45,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 01:23:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2023-12-03 01:23:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2023-12-03 01:23:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 01:23:46,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:46,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 01:23:46,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 01:23:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2023-12-03 01:23:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2023-12-03 01:23:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:23:46,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:46,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:46,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:46,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-03 01:23:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2023-12-03 01:23:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2023-12-03 01:23:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:23:46,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:46,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:46,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:23:46,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-03 01:23:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2023-12-03 01:23:46,896 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2023-12-03 01:23:46,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 01:23:46,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:46,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:46,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:46,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-03 01:23:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:47,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2023-12-03 01:23:47,010 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2023-12-03 01:23:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 01:23:47,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:47,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:47,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 01:23:47,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-03 01:23:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2023-12-03 01:23:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2023-12-03 01:23:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 01:23:47,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:47,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:47,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:23:47,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:47,603 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 15 proven. 35 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-03 01:23:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2023-12-03 01:23:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2023-12-03 01:23:47,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 01:23:47,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:47,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:47,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-12-03 01:23:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2023-12-03 01:23:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2023-12-03 01:23:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 01:23:47,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:47,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:48,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 01:23:48,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:48,129 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 18 proven. 21 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-03 01:23:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 45 states and 79 transitions. [2023-12-03 01:23:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2023-12-03 01:23:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 01:23:48,418 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:48,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:48,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-12-03 01:23:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 45 states and 78 transitions. [2023-12-03 01:23:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 78 transitions. [2023-12-03 01:23:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 01:23:48,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:48,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:48,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 01:23:48,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 19 proven. 52 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-12-03 01:23:49,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 46 states and 80 transitions. [2023-12-03 01:23:49,068 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2023-12-03 01:23:49,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 01:23:49,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:49,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:49,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 01:23:49,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:49,212 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 21 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-03 01:23:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 47 states and 84 transitions. [2023-12-03 01:23:49,482 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 84 transitions. [2023-12-03 01:23:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 01:23:49,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:49,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:49,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:49,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 59 proven. 7 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-12-03 01:23:49,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 85 transitions. [2023-12-03 01:23:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2023-12-03 01:23:49,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 01:23:49,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:49,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:23:49,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:50,056 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 47 proven. 15 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-03 01:23:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 36 states and 53 transitions. [2023-12-03 01:23:51,371 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-03 01:23:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 01:23:51,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:51,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:23:51,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 01:23:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 30 states and 46 transitions. [2023-12-03 01:23:51,820 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 46 transitions. [2023-12-03 01:23:51,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:23:51,820 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2023-12-03 01:23:51,829 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 01:23:52,317 INFO L560 CodeCheckObserver]: Invariant with dag size 31 [2023-12-03 01:23:52,323 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:23:52,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:23:52 ImpRootNode [2023-12-03 01:23:52,324 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:23:52,324 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:23:52,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:23:52,325 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:23:52,325 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:42" (3/4) ... [2023-12-03 01:23:52,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:23:52,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 01:23:52,331 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 01:23:52,331 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 01:23:52,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:23:52,332 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:23:52,398 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:23:52,399 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:23:52,399 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:23:52,399 INFO L158 Benchmark]: Toolchain (without parser) took 10118.94ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 112.1MB in the beginning and 93.6MB in the end (delta: 18.5MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,400 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:23:52,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.38ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 101.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,400 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.98ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,401 INFO L158 Benchmark]: Boogie Preprocessor took 18.99ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 98.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:23:52,401 INFO L158 Benchmark]: RCFGBuilder took 298.31ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 86.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,401 INFO L158 Benchmark]: CodeCheck took 9496.87ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 86.4MB in the beginning and 97.8MB in the end (delta: -11.4MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,402 INFO L158 Benchmark]: Witness Printer took 74.32ms. Allocated memory is still 224.4MB. Free memory was 97.8MB in the beginning and 93.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:23:52,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 851 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 824 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 548 mSDsCounter, 2205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5186 IncrementalHoareTripleChecker+Invalid, 7391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2205 mSolverCounterUnsat, 276 mSDtfsCounter, 5186 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6843 GetRequests, 6548 SyntacticMatches, 155 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8849 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 944 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 922 ConstructedInterpolants, 0 QuantifiedInterpolants, 2549 SizeOfPredicates, 46 NumberOfNonLiveVariables, 2444 ConjunctsInSsa, 359 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 2490/2810 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((16 == s) && (3 == a)) || ((a == 1) && (s == 4))) || ((9 == s) && (2 == a))) || ((!(((3 == t) && (a == 1))) && !(((5 == t) && (2 == a)))) && !(((7 == t) && (3 == a))))) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.38ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 101.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.98ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.99ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 98.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.31ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 86.4MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 9496.87ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 86.4MB in the beginning and 97.8MB in the end (delta: -11.4MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Witness Printer took 74.32ms. Allocated memory is still 224.4MB. Free memory was 97.8MB in the beginning and 93.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:23:52,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1bb326a-6b7f-4540-bb25-a129a9d1c486/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 Writing output log to file Ultimate.log Result: TRUE