./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/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_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/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 64bit --witnessprinter.graph.data.programhash 21a06ce5e98962e93aa29e180f0bc8e543a622b520b6d7eef2d0a57c9849b220 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:38,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:38,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:35:38,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:35:38,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:35:38,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:38,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:38,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:38,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:38,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:38,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:38,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:38,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:35:38,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:38,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:38,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:38,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:38,460 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:38,461 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:38,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:38,463 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:38,464 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:38,464 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:38,465 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:38,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:38,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:38,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:38,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:38,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:38,468 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:35:38,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:35:38,470 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:38,470 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_b0d9abb3-6ee4-4e9f-a823-52845319caa2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21a06ce5e98962e93aa29e180f0bc8e543a622b520b6d7eef2d0a57c9849b220 [2023-11-21 18:35:38,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:38,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:38,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:38,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:38,799 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:38,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i [2023-11-21 18:35:41,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:42,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:42,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/sv-benchmarks/c/termination-memory-alloca/b.06-alloca.i [2023-11-21 18:35:42,256 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/data/211bef0c2/f5be71804abb4ef6b453dd67fe6ce0e0/FLAG11b5efb48 [2023-11-21 18:35:42,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/data/211bef0c2/f5be71804abb4ef6b453dd67fe6ce0e0 [2023-11-21 18:35:42,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:42,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:42,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:42,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:42,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:42,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41883aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42, skipping insertion in model container [2023-11-21 18:35:42,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:42,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:42,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:42,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:42,782 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:42,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42 WrapperNode [2023-11-21 18:35:42,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:42,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:42,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:42,785 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:42,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,848 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2023-11-21 18:35:42,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:42,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:42,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:42,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:42,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:42,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:42,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:42,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:42,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:42" (1/1) ... [2023-11-21 18:35:42,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:42,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:42,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:42,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d9abb3-6ee4-4e9f-a823-52845319caa2/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:35:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:35:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:35:42,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:35:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:43,106 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:43,108 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:43,250 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:43,307 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:43,308 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:35:43,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:43 BoogieIcfgContainer [2023-11-21 18:35:43,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:43,312 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:43,312 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:43,323 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:43,323 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:43,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2023-11-21 18:35:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-21 18:35:43,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:35:43,384 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:43,953 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 18:35:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-21 18:35:44,016 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-21 18:35:44,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:35:44,017 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:44,631 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 18:35:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2023-11-21 18:35:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-21 18:35:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:35:44,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:45,117 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 18:35:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-21 18:35:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-21 18:35:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:35:45,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:45,972 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 18:35:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-21 18:35:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-21 18:35:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:35:46,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:46,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:47,504 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 18:35:49,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2023-11-21 18:35:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2023-11-21 18:35:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:49,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:49,966 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 18:35:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2023-11-21 18:35:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-11-21 18:35:50,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:35:50,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:50,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:35:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 47 states and 76 transitions. [2023-11-21 18:35:55,773 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2023-11-21 18:35:55,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:35:55,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 18:35:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:57,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 52 states and 82 transitions. [2023-11-21 18:35:57,866 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 82 transitions. [2023-11-21 18:35:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:35:57,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:35:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 54 states and 84 transitions. [2023-11-21 18:35:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2023-11-21 18:35:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:35:59,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 65 states and 105 transitions. [2023-11-21 18:36:05,222 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 105 transitions. [2023-11-21 18:36:05,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:36:05,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:09,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 73 states and 123 transitions. [2023-11-21 18:36:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 123 transitions. [2023-11-21 18:36:09,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:36:09,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:09,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:36:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:13,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 77 states and 133 transitions. [2023-11-21 18:36:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2023-11-21 18:36:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:36:13,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:13,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:36:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 79 states and 137 transitions. [2023-11-21 18:36:14,903 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 137 transitions. [2023-11-21 18:36:14,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:36:14,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:15,934 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:16,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 80 states and 137 transitions. [2023-11-21 18:36:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2023-11-21 18:36:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:36:16,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:16,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 88 states and 155 transitions. [2023-11-21 18:36:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 155 transitions. [2023-11-21 18:36:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:36:21,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:21,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:23,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:36:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 96 states and 173 transitions. [2023-11-21 18:36:28,714 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 173 transitions. [2023-11-21 18:36:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:36:28,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:28,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 18:36:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:29,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 98 states and 177 transitions. [2023-11-21 18:36:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 177 transitions. [2023-11-21 18:36:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:36:29,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:29,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 18:36:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 98 states and 176 transitions. [2023-11-21 18:36:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 176 transitions. [2023-11-21 18:36:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:36:30,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:30,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat