./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi --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 e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:54,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:54,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:51:55,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:55,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:55,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:55,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:55,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:55,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:55,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:55,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:55,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:55,058 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:55,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:55,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:55,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:55,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:55,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:55,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:55,062 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:55,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:55,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:55,064 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:55,064 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:55,065 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:55,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:55,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:55,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:55,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:55,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:55,068 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:55,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:55,068 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:55,069 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_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e89b4ab54b22145b4041cfb458aca993f2d791ac86940dcd03d48a90a5273393 [2023-11-24 22:51:55,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:55,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:55,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:55,385 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:55,386 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:55,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2023-11-24 22:51:58,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:58,833 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:58,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c [2023-11-24 22:51:58,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/data/bcd1a5996/0a2e279b39dc4e409c834029a31e0684/FLAGefbad5561 [2023-11-24 22:51:58,864 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/data/bcd1a5996/0a2e279b39dc4e409c834029a31e0684 [2023-11-24 22:51:58,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:58,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:58,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:58,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:58,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:58,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:58" (1/1) ... [2023-11-24 22:51:58,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619f6d2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:58, skipping insertion in model container [2023-11-24 22:51:58,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:58" (1/1) ... [2023-11-24 22:51:58,914 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:59,095 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_f7b9c071-4e73-4252-8cfa-30d4b3277e14/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2023-11-24 22:51:59,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:59,125 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:59,142 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_f7b9c071-4e73-4252-8cfa-30d4b3277e14/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound2.c[489,502] [2023-11-24 22:51:59,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:59,173 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:59,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59 WrapperNode [2023-11-24 22:51:59,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:59,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:59,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:59,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:59,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,222 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-24 22:51:59,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:59,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:59,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:59,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:59,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:59,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:59,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:59,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:59,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:59,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:59,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:59,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:59,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:51:59,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:51:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:59,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:51:59,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:51:59,414 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:59,417 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:59,622 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:59,702 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:59,702 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:51:59,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:59 BoogieIcfgContainer [2023-11-24 22:51:59,704 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:59,705 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:59,705 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:59,716 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:59,717 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:59" (1/1) ... [2023-11-24 22:51:59,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-24 22:51:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-24 22:51:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:51:59,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:59,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:00,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:52:00,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:52:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2023-11-24 22:52:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2023-11-24 22:52:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:52:00,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:00,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:00,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:52:00,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 22:52:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 35 states and 65 transitions. [2023-11-24 22:52:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 65 transitions. [2023-11-24 22:52:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:52:01,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:01,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:01,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-24 22:52:01,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 22:52:02,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 39 states and 75 transitions. [2023-11-24 22:52:02,273 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 75 transitions. [2023-11-24 22:52:02,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 22:52:02,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:02,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:02,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:52:02,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:52:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 39 states and 73 transitions. [2023-11-24 22:52:02,450 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 73 transitions. [2023-11-24 22:52:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-24 22:52:02,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:02,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:02,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:52:02,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:02,808 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-24 22:52:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:03,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 43 states and 86 transitions. [2023-11-24 22:52:03,456 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 86 transitions. [2023-11-24 22:52:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:52:03,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:03,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:03,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:52:03,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:52:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 47 states and 96 transitions. [2023-11-24 22:52:04,382 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 96 transitions. [2023-11-24 22:52:04,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 22:52:04,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:04,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:04,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-24 22:52:04,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-24 22:52:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:08,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 55 states and 121 transitions. [2023-11-24 22:52:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 121 transitions. [2023-11-24 22:52:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 22:52:08,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:08,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-24 22:52:08,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-24 22:52:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 59 states and 133 transitions. [2023-11-24 22:52:11,949 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 133 transitions. [2023-11-24 22:52:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-24 22:52:11,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:11,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:11,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:52:11,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-24 22:52:13,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 62 states and 139 transitions. [2023-11-24 22:52:13,619 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 139 transitions. [2023-11-24 22:52:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 22:52:13,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:13,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:13,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-24 22:52:13,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-24 22:52:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 66 states and 152 transitions. [2023-11-24 22:52:16,730 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2023-11-24 22:52:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-24 22:52:16,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:16,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:16,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-24 22:52:16,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-24 22:52:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 70 states and 165 transitions. [2023-11-24 22:52:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 165 transitions. [2023-11-24 22:52:20,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 22:52:20,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:20,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:20,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:52:20,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-24 22:52:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 74 states and 175 transitions. [2023-11-24 22:52:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 175 transitions. [2023-11-24 22:52:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 22:52:27,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:27,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:27,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:52:27,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-24 22:52:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 76 states and 187 transitions. [2023-11-24 22:52:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 187 transitions. [2023-11-24 22:52:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 22:52:29,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:29,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:52:29,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-24 22:52:30,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 78 states and 191 transitions. [2023-11-24 22:52:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 191 transitions. [2023-11-24 22:52:30,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 22:52:30,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:30,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:52:30,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-24 22:52:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 79 states and 195 transitions. [2023-11-24 22:52:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 195 transitions. [2023-11-24 22:52:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-24 22:52:32,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:32,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:32,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:52:32,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-24 22:52:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:34,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 81 states and 201 transitions. [2023-11-24 22:52:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 201 transitions. [2023-11-24 22:52:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-24 22:52:34,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:34,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:34,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:52:34,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-24 22:52:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 46 states and 72 transitions. [2023-11-24 22:52:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-11-24 22:52:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-24 22:52:37,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:37,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:37,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:52:37,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:37,270 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-24 22:52:39,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 47 states and 73 transitions. [2023-11-24 22:52:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2023-11-24 22:52:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-24 22:52:39,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:40,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:52:40,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-24 22:52:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 43 states and 64 transitions. [2023-11-24 22:52:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 64 transitions. [2023-11-24 22:52:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-24 22:52:44,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:45,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:52:45,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:52:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-24 22:52:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 33 states and 49 transitions. [2023-11-24 22:52:48,413 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2023-11-24 22:52:48,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:52:48,416 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2023-11-24 22:52:48,432 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 22:52:49,002 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:52:49,006 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:52:49,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:52:49 ImpRootNode [2023-11-24 22:52:49,007 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:52:49,007 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:52:49,007 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:52:49,007 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:52:49,008 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:59" (3/4) ... [2023-11-24 22:52:49,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:52:49,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 22:52:49,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 22:52:49,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-24 22:52:49,019 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:52:49,020 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:52:49,020 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:52:49,122 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:52:49,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:52:49,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:52:49,124 INFO L158 Benchmark]: Toolchain (without parser) took 50251.96ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 123.6MB in the beginning and 119.6MB in the end (delta: 4.0MB). Peak memory consumption was 131.2MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,125 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:52:49,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.98ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 112.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.16ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,126 INFO L158 Benchmark]: Boogie Preprocessor took 25.30ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 109.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,127 INFO L158 Benchmark]: RCFGBuilder took 454.79ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 96.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,128 INFO L158 Benchmark]: CodeCheck took 49301.58ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 95.7MB in the beginning and 124.8MB in the end (delta: -29.1MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,128 INFO L158 Benchmark]: Witness Printer took 116.34ms. Allocated memory is still 293.6MB. Free memory was 124.8MB in the beginning and 119.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:52:49,130 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 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.7s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1926 SdHoareTripleChecker+Valid, 24.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 578 mSDsluCounter, 1217 SdHoareTripleChecker+Invalid, 22.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 576 mSDsCounter, 2282 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7514 IncrementalHoareTripleChecker+Invalid, 9796 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2282 mSolverCounterUnsat, 641 mSDtfsCounter, 7514 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8920 GetRequests, 8600 SyntacticMatches, 86 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26178 ImplicationChecksByTransitivity, 40.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 104 NumberOfNonLiveVariables, 2537 ConjunctsInSsa, 450 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 1386/1502 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: 13]: 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.98ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 112.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.16ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.30ms. Allocated memory is still 167.8MB. Free memory was 110.9MB in the beginning and 109.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.79ms. Allocated memory is still 167.8MB. Free memory was 109.6MB in the beginning and 96.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 49301.58ms. Allocated memory was 167.8MB in the beginning and 293.6MB in the end (delta: 125.8MB). Free memory was 95.7MB in the beginning and 124.8MB in the end (delta: -29.1MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 116.34ms. Allocated memory is still 293.6MB. Free memory was 124.8MB in the beginning and 119.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:52:49,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b9c071-4e73-4252-8cfa-30d4b3277e14/bin/ukojak-verify-afCqCEvfdi/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