./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/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_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e9911e775b3214ba13077b05d83e9364947724e9afa3bb89f51b07ee325bd90 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:07:07,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:07:07,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 23:07:07,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:07:07,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:07:07,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:07:07,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:07:07,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:07:07,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:07:07,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:07:07,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:07:07,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:07:07,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:07:07,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:07:07,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:07:07,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:07:07,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:07:07,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:07:07,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:07:07,383 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:07:07,384 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:07:07,384 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:07:07,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:07:07,385 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:07:07,386 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:07:07,386 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:07:07,387 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:07:07,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:07:07,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:07,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:07:07,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:07:07,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:07:07,390 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:07:07,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:07:07,390 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:07:07,391 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_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e9911e775b3214ba13077b05d83e9364947724e9afa3bb89f51b07ee325bd90 [2023-11-24 23:07:07,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:07:07,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:07:07,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:07:07,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:07:07,745 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:07:07,747 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound20.c [2023-11-24 23:07:10,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:07:11,031 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:07:11,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound20.c [2023-11-24 23:07:11,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/data/ed25d8335/08f78bab71ab48fab504e7c6e6c92df1/FLAGa33b27684 [2023-11-24 23:07:11,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/data/ed25d8335/08f78bab71ab48fab504e7c6e6c92df1 [2023-11-24 23:07:11,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:07:11,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:07:11,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:11,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:07:11,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:07:11,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b03c843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11, skipping insertion in model container [2023-11-24 23:07:11,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,108 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:07:11,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:11,340 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:07:11,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:11,391 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:07:11,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11 WrapperNode [2023-11-24 23:07:11,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:11,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:11,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:07:11,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:07:11,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,450 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-11-24 23:07:11,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:11,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:07:11,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:07:11,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:07:11,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:07:11,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:07:11,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:07:11,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:07:11,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:11" (1/1) ... [2023-11-24 23:07:11,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:11,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:07:11,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:07:11,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9f62ba8-a9c4-42e9-bf00-d0764d12e03c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:07:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:07:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:07:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:07:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:07:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:07:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:07:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:07:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:07:11,631 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:07:11,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:07:12,199 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:07:12,246 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:07:12,247 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:07:12,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:12 BoogieIcfgContainer [2023-11-24 23:07:12,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:07:12,250 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:07:12,250 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:07:12,260 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:07:12,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:12" (1/1) ... [2023-11-24 23:07:12,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:07:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 161 states and 174 transitions. [2023-11-24 23:07:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 174 transitions. [2023-11-24 23:07:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:07:12,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:12,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:12,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 23:07:12,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:07:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 160 states and 173 transitions. [2023-11-24 23:07:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 173 transitions. [2023-11-24 23:07:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:07:12,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:12,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:12,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:07:12,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:07:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 159 states and 172 transitions. [2023-11-24 23:07:13,199 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 172 transitions. [2023-11-24 23:07:13,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:07:13,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:13,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:07:13,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:07:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 158 states and 171 transitions. [2023-11-24 23:07:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 171 transitions. [2023-11-24 23:07:13,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:07:13,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:13,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:07:13,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:07:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 157 states and 170 transitions. [2023-11-24 23:07:13,422 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 170 transitions. [2023-11-24 23:07:13,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:07:13,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:13,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:13,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:07:13,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 159 states and 172 transitions. [2023-11-24 23:07:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 172 transitions. [2023-11-24 23:07:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:07:14,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:14,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:07:14,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:15,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:15,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 162 states and 176 transitions. [2023-11-24 23:07:15,916 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 176 transitions. [2023-11-24 23:07:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:07:15,917 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:15,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:15,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:07:15,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 177 transitions. [2023-11-24 23:07:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 177 transitions. [2023-11-24 23:07:16,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:07:16,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:16,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:07:16,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:17,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 168 states and 185 transitions. [2023-11-24 23:07:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 185 transitions. [2023-11-24 23:07:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:07:17,402 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:17,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:17,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:07:17,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 171 states and 190 transitions. [2023-11-24 23:07:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 190 transitions. [2023-11-24 23:07:18,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:07:18,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:18,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:07:18,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 175 states and 197 transitions. [2023-11-24 23:07:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 197 transitions. [2023-11-24 23:07:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:07:19,332 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:19,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:19,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:07:19,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:19,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:20,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 180 states and 206 transitions. [2023-11-24 23:07:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 206 transitions. [2023-11-24 23:07:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 23:07:20,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:20,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:07:20,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 186 states and 217 transitions. [2023-11-24 23:07:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 217 transitions. [2023-11-24 23:07:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 23:07:21,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:21,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:07:21,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:07:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 187 states and 218 transitions. [2023-11-24 23:07:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 218 transitions. [2023-11-24 23:07:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:07:21,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:21,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 23:07:21,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 199 states and 238 transitions. [2023-11-24 23:07:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 238 transitions. [2023-11-24 23:07:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:07:26,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:26,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:26,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 23:07:26,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 212 states and 259 transitions. [2023-11-24 23:07:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2023-11-24 23:07:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:07:32,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:32,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:07:32,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 227 states and 284 transitions. [2023-11-24 23:07:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2023-11-24 23:07:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 23:07:39,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:39,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:39,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:07:39,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 243 states and 311 transitions. [2023-11-24 23:07:47,076 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 311 transitions. [2023-11-24 23:07:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-24 23:07:47,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:47,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:07:47,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 23:07:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 260 states and 340 transitions. [2023-11-24 23:07:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 340 transitions. [2023-11-24 23:07:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-24 23:07:56,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:56,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:56,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:07:56,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 23:08:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 278 states and 371 transitions. [2023-11-24 23:08:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 371 transitions. [2023-11-24 23:08:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:08:06,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:06,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:08:06,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.