./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/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_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/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_a949f007-efd7-435f-9810-da52d6fced26/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 10491a2ba1c0af8edd609b5028b1f925d0288ec6e0b405ba8250552a6ddb6463 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:28:44,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:28:44,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:28:44,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:28:44,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:28:44,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:28:44,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:28:44,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:28:44,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:28:44,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:28:44,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:28:44,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:28:44,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:28:44,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:28:44,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:28:44,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:28:44,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:28:44,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:28:44,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:28:44,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:28:44,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:28:44,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:28:44,517 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:28:44,518 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:28:44,518 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:28:44,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:28:44,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:28:44,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:28:44,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:28:44,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:28:44,523 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:28:44,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:28:44,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:28:44,524 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_a949f007-efd7-435f-9810-da52d6fced26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10491a2ba1c0af8edd609b5028b1f925d0288ec6e0b405ba8250552a6ddb6463 [2023-11-19 03:28:44,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:28:44,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:28:44,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:28:44,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:28:44,988 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:28:44,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c [2023-11-19 03:28:48,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:28:48,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:28:48,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/sv-benchmarks/c/loop-industry-pattern/aiob_4.c [2023-11-19 03:28:48,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/data/9747a6af0/d6fce579b4c649da926a3e5cf3b4b421/FLAGacc19e4b9 [2023-11-19 03:28:48,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/data/9747a6af0/d6fce579b4c649da926a3e5cf3b4b421 [2023-11-19 03:28:48,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:28:48,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:28:48,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:48,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:28:48,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:28:48,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:48" (1/1) ... [2023-11-19 03:28:48,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653bdfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:48, skipping insertion in model container [2023-11-19 03:28:48,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:48" (1/1) ... [2023-11-19 03:28:48,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:28:49,091 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_a949f007-efd7-435f-9810-da52d6fced26/sv-benchmarks/c/loop-industry-pattern/aiob_4.c[7328,7341] [2023-11-19 03:28:49,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:49,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:28:49,268 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_a949f007-efd7-435f-9810-da52d6fced26/sv-benchmarks/c/loop-industry-pattern/aiob_4.c[7328,7341] [2023-11-19 03:28:49,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:49,291 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:28:49,301 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:28:49,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49 WrapperNode [2023-11-19 03:28:49,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:49,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:49,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:28:49,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:28:49,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,427 INFO L138 Inliner]: procedures = 17, calls = 195, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 330 [2023-11-19 03:28:49,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:49,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:28:49,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:28:49,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:28:49,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:28:49,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:28:49,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:28:49,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:28:49,539 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:49" (1/1) ... [2023-11-19 03:28:49,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:28:49,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:28:49,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:28:49,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a949f007-efd7-435f-9810-da52d6fced26/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:28:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:28:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 03:28:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:28:49,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:28:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:28:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:28:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:28:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:28:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:28:49,772 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:28:49,776 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:28:50,711 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:28:50,748 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:28:50,748 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:28:50,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:50 BoogieIcfgContainer [2023-11-19 03:28:50,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:28:50,756 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:28:50,756 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:28:50,769 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:28:50,769 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:50" (1/1) ... [2023-11-19 03:28:50,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:28:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2023-11-19 03:28:50,863 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2023-11-19 03:28:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:28:50,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:50,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:52,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-19 03:28:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-19 03:28:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:28:52,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 03:28:53,055 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 03:28:53,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:28:53,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:53,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-19 03:28:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-19 03:28:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:28:53,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:53,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:54,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-11-19 03:28:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-19 03:28:54,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:28:54,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:54,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:55,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-19 03:28:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-19 03:28:55,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:28:55,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:55,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:56,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2023-11-19 03:28:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-19 03:28:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:28:56,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:56,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2023-11-19 03:28:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2023-11-19 03:28:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:28:58,146 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:58,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:28:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:28:59,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 41 states and 50 transitions. [2023-11-19 03:28:59,268 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2023-11-19 03:28:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:28:59,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:59,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:00,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 45 states and 55 transitions. [2023-11-19 03:29:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-11-19 03:29:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:29:00,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 49 states and 60 transitions. [2023-11-19 03:29:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-11-19 03:29:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:29:02,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:02,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:03,010 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:03,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:03,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 53 states and 65 transitions. [2023-11-19 03:29:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2023-11-19 03:29:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 03:29:03,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:03,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:05,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:05,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 57 states and 70 transitions. [2023-11-19 03:29:05,257 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-11-19 03:29:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:29:05,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:05,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2023-11-19 03:29:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2023-11-19 03:29:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 03:29:07,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:07,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 65 states and 80 transitions. [2023-11-19 03:29:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2023-11-19 03:29:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:29:08,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:08,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:10,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 69 states and 85 transitions. [2023-11-19 03:29:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2023-11-19 03:29:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:29:10,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:10,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:12,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 73 states and 90 transitions. [2023-11-19 03:29:12,572 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2023-11-19 03:29:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 03:29:12,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:12,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:13,462 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 77 states and 95 transitions. [2023-11-19 03:29:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 95 transitions. [2023-11-19 03:29:14,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 03:29:14,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:14,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:15,213 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 81 states and 100 transitions. [2023-11-19 03:29:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 100 transitions. [2023-11-19 03:29:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 03:29:16,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:16,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:18,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 85 states and 105 transitions. [2023-11-19 03:29:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 105 transitions. [2023-11-19 03:29:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 03:29:18,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:18,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 89 states and 110 transitions. [2023-11-19 03:29:20,850 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 110 transitions. [2023-11-19 03:29:20,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 03:29:20,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:21,959 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 0 proven. 800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 93 states and 115 transitions. [2023-11-19 03:29:23,241 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 115 transitions. [2023-11-19 03:29:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 03:29:23,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:23,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:25,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 97 states and 120 transitions. [2023-11-19 03:29:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2023-11-19 03:29:25,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 03:29:25,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:25,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:29:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:29:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:29:28,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:29:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 101 states and 125 transitions. [2023-11-19 03:29:28,761 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2023-11-19 03:29:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 03:29:28,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:29:28,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms