./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2 --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 c47d59ab63382053ffbe7eb88792770801b76622345c0f78fbb8210938779c5e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:32,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:32,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:54:32,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:54:32,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:54:32,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:32,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:32,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:32,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:32,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:32,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:32,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:32,979 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:54:32,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:54:32,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:54:32,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:32,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:32,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:32,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:32,984 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:32,984 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:32,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:54:32,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:32,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:32,987 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:32,987 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:32,988 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:32,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:32,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:32,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:32,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:32,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:32,991 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:54:32,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:54:32,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:32,992 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_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c47d59ab63382053ffbe7eb88792770801b76622345c0f78fbb8210938779c5e [2023-11-21 18:54:33,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:33,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:33,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:33,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:33,313 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:33,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c [2023-11-21 18:54:36,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:37,178 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:37,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c [2023-11-21 18:54:37,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/data/4e4672a23/fbee554b0abf442eba8f4fcb88aff547/FLAG046f65ef0 [2023-11-21 18:54:37,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/data/4e4672a23/fbee554b0abf442eba8f4fcb88aff547 [2023-11-21 18:54:37,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:37,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:37,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:37,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:37,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:37,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676c8b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37, skipping insertion in model container [2023-11-21 18:54:37,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:37,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:37,434 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:37,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:37,471 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:37,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37 WrapperNode [2023-11-21 18:54:37,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:37,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:37,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:37,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:37,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,529 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2023-11-21 18:54:37,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:37,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:37,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:37,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:37,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:37,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:37,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:37,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:37,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:37" (1/1) ... [2023-11-21 18:54:37,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:37,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:37,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:37,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e716e32c-9a8c-43e5-8b26-01ffa5550102/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:54:37,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:37,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:37,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:54:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:54:37,767 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:37,771 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:38,254 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:38,302 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:38,303 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:54:38,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:38 BoogieIcfgContainer [2023-11-21 18:54:38,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:38,306 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:38,306 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:38,317 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:38,318 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:38" (1/1) ... [2023-11-21 18:54:38,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:38,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 97 states and 99 transitions. [2023-11-21 18:54:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2023-11-21 18:54:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:38,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:38,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:38,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 97 states and 98 transitions. [2023-11-21 18:54:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2023-11-21 18:54:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:38,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:38,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 99 states and 101 transitions. [2023-11-21 18:54:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2023-11-21 18:54:38,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:54:38,724 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:38,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 102 states and 105 transitions. [2023-11-21 18:54:38,920 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2023-11-21 18:54:38,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:54:38,921 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 106 states and 112 transitions. [2023-11-21 18:54:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2023-11-21 18:54:39,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:39,321 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 107 states and 113 transitions. [2023-11-21 18:54:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2023-11-21 18:54:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:39,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 106 states and 112 transitions. [2023-11-21 18:54:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2023-11-21 18:54:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:54:39,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:39,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 108 states and 114 transitions. [2023-11-21 18:54:39,545 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2023-11-21 18:54:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:39,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:39,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 109 states and 115 transitions. [2023-11-21 18:54:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2023-11-21 18:54:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:54:39,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:39,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:39,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 110 states and 116 transitions. [2023-11-21 18:54:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2023-11-21 18:54:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:54:39,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:39,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:39,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:39,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 118 states and 125 transitions. [2023-11-21 18:54:39,967 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2023-11-21 18:54:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:54:39,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 126 states and 134 transitions. [2023-11-21 18:54:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2023-11-21 18:54:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:54:40,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 127 states and 136 transitions. [2023-11-21 18:54:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 136 transitions. [2023-11-21 18:54:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:54:40,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 129 states and 139 transitions. [2023-11-21 18:54:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2023-11-21 18:54:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:54:40,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 128 states and 138 transitions. [2023-11-21 18:54:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2023-11-21 18:54:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:54:40,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 131 states and 141 transitions. [2023-11-21 18:54:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 141 transitions. [2023-11-21 18:54:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:54:40,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:40,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 137 states and 147 transitions. [2023-11-21 18:54:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2023-11-21 18:54:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:54:40,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:40,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:54:40,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 143 states and 154 transitions. [2023-11-21 18:54:41,089 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2023-11-21 18:54:41,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:54:41,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:41,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:41,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:41,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:41,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 144 states and 156 transitions. [2023-11-21 18:54:41,372 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2023-11-21 18:54:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:54:41,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:41,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:41,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:41,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:41,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 146 states and 160 transitions. [2023-11-21 18:54:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 160 transitions. [2023-11-21 18:54:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:54:41,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:41,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:41,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:41,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:42,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 149 states and 165 transitions. [2023-11-21 18:54:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 165 transitions. [2023-11-21 18:54:42,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:54:42,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:42,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:42,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:42,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:43,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 171 states and 195 transitions. [2023-11-21 18:54:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 195 transitions. [2023-11-21 18:54:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:54:43,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:43,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:43,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 176 states and 204 transitions. [2023-11-21 18:54:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 204 transitions. [2023-11-21 18:54:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:54:43,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:43,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:43,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:43,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:45,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 199 states and 236 transitions. [2023-11-21 18:54:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 236 transitions. [2023-11-21 18:54:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:54:45,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:45,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:45,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 202 states and 240 transitions. [2023-11-21 18:54:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 240 transitions. [2023-11-21 18:54:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:54:45,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:45,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:45,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:45,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 205 states and 247 transitions. [2023-11-21 18:54:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 247 transitions. [2023-11-21 18:54:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:54:46,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:46,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:46,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:47,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 209 states and 252 transitions. [2023-11-21 18:54:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2023-11-21 18:54:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:54:47,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:47,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:47,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 213 states and 260 transitions. [2023-11-21 18:54:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 260 transitions. [2023-11-21 18:54:48,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:54:48,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:48,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:48,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:54:48,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:48,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 212 states and 259 transitions. [2023-11-21 18:54:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2023-11-21 18:54:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:54:48,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:48,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:54:48,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 211 states and 258 transitions. [2023-11-21 18:54:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 258 transitions. [2023-11-21 18:54:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:54:48,200 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:48,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:48,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 217 states and 265 transitions. [2023-11-21 18:54:49,456 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 265 transitions. [2023-11-21 18:54:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:54:49,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:49,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:49,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:54:49,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 226 states and 280 transitions. [2023-11-21 18:54:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 280 transitions. [2023-11-21 18:54:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:54:50,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:50,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:50,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:50,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:51,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 233 states and 289 transitions. [2023-11-21 18:54:51,619 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 289 transitions. [2023-11-21 18:54:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:54:51,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:51,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:51,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:51,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:52,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 245 states and 306 transitions. [2023-11-21 18:54:52,513 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 306 transitions. [2023-11-21 18:54:52,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:54:52,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:52,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:52,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:52,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:52,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:53,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 253 states and 316 transitions. [2023-11-21 18:54:53,522 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 316 transitions. [2023-11-21 18:54:53,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:54:53,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:53,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:53,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:53,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 265 states and 336 transitions. [2023-11-21 18:54:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 336 transitions. [2023-11-21 18:54:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:54:54,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:54,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:54,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:54,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:56,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 274 states and 347 transitions. [2023-11-21 18:54:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 347 transitions. [2023-11-21 18:54:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 18:54:56,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:56,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:57,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 284 states and 359 transitions. [2023-11-21 18:54:57,757 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 359 transitions. [2023-11-21 18:54:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-21 18:54:57,758 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:57,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:57,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:54:57,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:54:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:58,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 285 states and 360 transitions. [2023-11-21 18:54:58,053 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 360 transitions. [2023-11-21 18:54:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:54:58,054 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:58,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:54:58,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:59,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 284 states and 359 transitions. [2023-11-21 18:54:59,206 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 359 transitions. [2023-11-21 18:54:59,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:54:59,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:59,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:59,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:54:59,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:54:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:00,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 289 states and 368 transitions. [2023-11-21 18:55:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 368 transitions. [2023-11-21 18:55:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 18:55:00,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:00,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:00,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:00,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:01,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 288 states and 367 transitions. [2023-11-21 18:55:01,285 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 367 transitions. [2023-11-21 18:55:01,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 18:55:01,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:01,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:01,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:55:01,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:01,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 292 states and 375 transitions. [2023-11-21 18:55:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 375 transitions. [2023-11-21 18:55:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 18:55:01,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:01,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:01,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:55:01,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 291 states and 374 transitions. [2023-11-21 18:55:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 374 transitions. [2023-11-21 18:55:01,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 18:55:01,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:01,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:55:01,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:02,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 296 states and 381 transitions. [2023-11-21 18:55:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 381 transitions. [2023-11-21 18:55:02,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 18:55:02,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:02,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:02,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 295 states and 380 transitions. [2023-11-21 18:55:04,227 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 380 transitions. [2023-11-21 18:55:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:55:04,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:04,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:04,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:04,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 310 states and 397 transitions. [2023-11-21 18:55:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 397 transitions. [2023-11-21 18:55:07,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:55:07,981 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:07,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:08,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:55:08,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:08,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 313 states and 402 transitions. [2023-11-21 18:55:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 402 transitions. [2023-11-21 18:55:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:55:08,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:08,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:09,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:09,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 312 states and 401 transitions. [2023-11-21 18:55:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 401 transitions. [2023-11-21 18:55:10,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:55:10,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:10,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:55:10,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:10,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 316 states and 406 transitions. [2023-11-21 18:55:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 406 transitions. [2023-11-21 18:55:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:55:10,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:10,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:10,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:10,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 333 states and 425 transitions. [2023-11-21 18:55:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 425 transitions. [2023-11-21 18:55:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:55:16,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:16,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:16,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:55:16,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:16,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 337 states and 430 transitions. [2023-11-21 18:55:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 430 transitions. [2023-11-21 18:55:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:55:16,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:16,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:55:16,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 336 states and 429 transitions. [2023-11-21 18:55:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 429 transitions. [2023-11-21 18:55:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:55:19,821 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:19,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:19,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:55:19,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 342 states and 436 transitions. [2023-11-21 18:55:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 436 transitions. [2023-11-21 18:55:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 18:55:20,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:20,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:20,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:55:20,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:23,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:23,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 350 states and 444 transitions. [2023-11-21 18:55:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 444 transitions. [2023-11-21 18:55:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 18:55:23,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:23,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:23,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:55:23,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 352 states and 447 transitions. [2023-11-21 18:55:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 447 transitions. [2023-11-21 18:55:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 18:55:23,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:23,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:23,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:55:23,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:23,327 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 354 states and 451 transitions. [2023-11-21 18:55:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 451 transitions. [2023-11-21 18:55:23,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 18:55:23,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:23,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:23,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:55:23,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.