./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64261cdf4de80f70fe2d4ad7338f6b0821a851ad9c048667535af1ece80ec49c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:35:56,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:35:56,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:35:56,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:35:56,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:35:56,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:35:56,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:35:56,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:35:56,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:35:56,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:35:56,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:35:56,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:35:56,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:35:56,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:35:56,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:35:56,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:35:56,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:35:56,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:35:56,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:35:56,447 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:35:56,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:35:56,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:35:56,451 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:35:56,451 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:35:56,451 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:35:56,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:35:56,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:35:56,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:35:56,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:35:56,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:35:56,455 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:35:56,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:35:56,455 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:35:56,456 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_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64261cdf4de80f70fe2d4ad7338f6b0821a851ad9c048667535af1ece80ec49c [2023-11-19 03:35:56,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:35:56,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:35:56,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:35:56,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:35:56,762 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:35:56,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c [2023-11-19 03:35:59,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:36:00,158 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:36:00,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c [2023-11-19 03:36:00,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/data/40640b670/d487da139f5e417ea15ccaed78e4a535/FLAG265415bac [2023-11-19 03:36:00,190 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/data/40640b670/d487da139f5e417ea15ccaed78e4a535 [2023-11-19 03:36:00,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:36:00,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:36:00,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:00,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:36:00,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:36:00,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bf36c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00, skipping insertion in model container [2023-11-19 03:36:00,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,240 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:36:00,425 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c[537,550] [2023-11-19 03:36:00,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:00,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:36:00,478 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/sv-benchmarks/c/nla-digbench-scaling/hard-u_valuebound50.c[537,550] [2023-11-19 03:36:00,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:00,507 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:36:00,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00 WrapperNode [2023-11-19 03:36:00,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:00,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:00,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:36:00,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:36:00,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,552 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-11-19 03:36:00,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:00,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:36:00,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:36:00,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:36:00,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:36:00,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:36:00,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:36:00,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:36:00,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:36:00,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:36:00,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:36:00,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6753a7b7-6a5f-4696-bc65-448b5c35d70e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:36:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:36:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:36:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:36:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:36:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:36:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:36:00,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:36:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:36:00,711 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:36:00,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:36:00,872 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:36:00,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:36:00,939 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:36:00,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:36:00 BoogieIcfgContainer [2023-11-19 03:36:00,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:36:00,945 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:36:00,945 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:36:00,953 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:36:00,953 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:36:00" (1/1) ... [2023-11-19 03:36:00,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:36:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:01,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-11-19 03:36:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-11-19 03:36:01,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:36:01,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:01,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:36:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2023-11-19 03:36:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2023-11-19 03:36:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:36:01,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:01,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:36:02,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 56 transitions. [2023-11-19 03:36:02,478 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2023-11-19 03:36:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:36:02,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:02,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:36:02,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:02,898 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:36:03,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:03,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:36:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:36:03,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:36:03,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:03,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:36:03,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:36:03,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:03,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 40 states and 70 transitions. [2023-11-19 03:36:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2023-11-19 03:36:03,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:36:03,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:03,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:03,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:36:03,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:36:04,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:04,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2023-11-19 03:36:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2023-11-19 03:36:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:36:04,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:04,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:04,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:36:04,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:36:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:06,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 49 states and 91 transitions. [2023-11-19 03:36:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 91 transitions. [2023-11-19 03:36:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:36:06,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:06,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:36:06,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:36:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 57 states and 110 transitions. [2023-11-19 03:36:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 110 transitions. [2023-11-19 03:36:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:36:08,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:08,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:36:08,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:36:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 57 states and 110 transitions. [2023-11-19 03:36:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 110 transitions. [2023-11-19 03:36:08,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:36:08,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:08,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 03:36:08,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:36:08,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 57 states and 110 transitions. [2023-11-19 03:36:08,671 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 110 transitions. [2023-11-19 03:36:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:36:08,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:08,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:36:08,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 03:36:10,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 62 states and 121 transitions. [2023-11-19 03:36:10,549 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 121 transitions. [2023-11-19 03:36:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:36:10,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:10,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:36:10,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:10,709 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:36:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 66 states and 133 transitions. [2023-11-19 03:36:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2023-11-19 03:36:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:36:33,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:33,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:36:33,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:36:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:36:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 68 states and 136 transitions. [2023-11-19 03:36:33,736 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 136 transitions. [2023-11-19 03:36:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:36:33,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:36:33,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:36:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:36:33,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:36:33,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:36:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.