./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.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_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/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_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/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_8398af32-23a5-424b-b6c0-93489894fb77/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 e9f62e9366253d4fa7ecb8459a59d71535ca8498509abd809bca70a443281519 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:42:35,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:42:35,719 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:42:35,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:42:35,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:42:35,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:42:35,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:42:35,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:42:35,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:42:35,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:42:35,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:42:35,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:42:35,755 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:42:35,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:42:35,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:42:35,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:42:35,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:42:35,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:42:35,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:42:35,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:42:35,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:42:35,761 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:42:35,761 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:42:35,762 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:42:35,762 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:42:35,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:42:35,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:42:35,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:42:35,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:42:35,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:42:35,766 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:42:35,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:42:35,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:42:35,767 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_8398af32-23a5-424b-b6c0-93489894fb77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f62e9366253d4fa7ecb8459a59d71535ca8498509abd809bca70a443281519 [2023-11-19 02:42:36,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:42:36,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:42:36,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:42:36,165 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:42:36,166 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:42:36,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c [2023-11-19 02:42:39,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:42:39,392 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:42:39,392 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c [2023-11-19 02:42:39,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/data/e16e97f7b/a7d5612c043b4ce69ff981d18a647768/FLAG58612ccc6 [2023-11-19 02:42:39,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/data/e16e97f7b/a7d5612c043b4ce69ff981d18a647768 [2023-11-19 02:42:39,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:42:39,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:42:39,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:42:39,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:42:39,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:42:39,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d446958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39, skipping insertion in model container [2023-11-19 02:42:39,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:42:39,639 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_8398af32-23a5-424b-b6c0-93489894fb77/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c[951,964] [2023-11-19 02:42:39,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:42:39,653 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:42:39,667 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_8398af32-23a5-424b-b6c0-93489894fb77/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c[951,964] [2023-11-19 02:42:39,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:42:39,681 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:42:39,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39 WrapperNode [2023-11-19 02:42:39,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:42:39,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:42:39,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:42:39,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:42:39,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,717 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-11-19 02:42:39,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:42:39,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:42:39,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:42:39,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:42:39,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,729 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:42:39,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:42:39,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:42:39,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:42:39,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:42:39" (1/1) ... [2023-11-19 02:42:39,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:42:39,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:42:39,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:42:39,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8398af32-23a5-424b-b6c0-93489894fb77/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:42:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:42:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:42:39,817 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2023-11-19 02:42:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2023-11-19 02:42:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2023-11-19 02:42:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2023-11-19 02:42:39,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:42:39,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:42:39,878 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:42:39,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:42:40,018 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:42:40,037 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:42:40,037 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:42:40,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:42:40 BoogieIcfgContainer [2023-11-19 02:42:40,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:42:40,043 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:42:40,043 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:42:40,053 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:42:40,054 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:42:40" (1/1) ... [2023-11-19 02:42:40,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:42:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2023-11-19 02:42:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2023-11-19 02:42:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:42:40,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:40,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:40,467 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 02:42:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:40,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2023-11-19 02:42:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-11-19 02:42:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:42:40,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:40,637 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 02:42:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 41 transitions. [2023-11-19 02:42:40,728 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2023-11-19 02:42:40,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:42:40,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:40,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:42:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 45 transitions. [2023-11-19 02:42:41,272 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-11-19 02:42:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:42:41,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:41,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:42:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:41,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 39 states and 59 transitions. [2023-11-19 02:42:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2023-11-19 02:42:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 02:42:41,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:42:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 39 states and 58 transitions. [2023-11-19 02:42:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-11-19 02:42:42,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 02:42:42,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 02:42:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 39 states and 55 transitions. [2023-11-19 02:42:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-11-19 02:42:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 02:42:43,215 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:43,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:42:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:44,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 74 transitions. [2023-11-19 02:42:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions. [2023-11-19 02:42:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 02:42:44,323 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:44,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 02:42:44,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:44,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 49 states and 73 transitions. [2023-11-19 02:42:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-19 02:42:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 02:42:44,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:44,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 02:42:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 52 states and 79 transitions. [2023-11-19 02:42:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2023-11-19 02:42:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-19 02:42:46,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:46,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 9 proven. 62 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-19 02:42:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 62 states and 100 transitions. [2023-11-19 02:42:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 100 transitions. [2023-11-19 02:42:47,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-19 02:42:47,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:47,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 44 proven. 193 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2023-11-19 02:42:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 72 states and 124 transitions. [2023-11-19 02:42:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2023-11-19 02:42:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 02:42:48,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 51 proven. 218 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2023-11-19 02:42:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 82 states and 151 transitions. [2023-11-19 02:42:50,478 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 151 transitions. [2023-11-19 02:42:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-19 02:42:50,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5016 backedges. 576 proven. 701 refuted. 0 times theorem prover too weak. 3739 trivial. 0 not checked. [2023-11-19 02:42:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 82 states and 148 transitions. [2023-11-19 02:42:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 148 transitions. [2023-11-19 02:42:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-19 02:42:52,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7277 backedges. 208 proven. 1069 refuted. 0 times theorem prover too weak. 6000 trivial. 0 not checked. [2023-11-19 02:42:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 92 states and 175 transitions. [2023-11-19 02:42:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 175 transitions. [2023-11-19 02:42:54,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2023-11-19 02:42:54,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:54,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:56,298 INFO L134 CoverageAnalysis]: Checked inductivity of 10453 backedges. 348 proven. 1380 refuted. 0 times theorem prover too weak. 8725 trivial. 0 not checked. [2023-11-19 02:42:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 92 states and 173 transitions. [2023-11-19 02:42:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 173 transitions. [2023-11-19 02:42:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2023-11-19 02:42:56,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:56,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:42:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 7277 backedges. 837 proven. 1070 refuted. 0 times theorem prover too weak. 5370 trivial. 0 not checked. [2023-11-19 02:42:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:42:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 92 states and 172 transitions. [2023-11-19 02:42:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 172 transitions. [2023-11-19 02:42:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2023-11-19 02:42:59,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:42:59,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:42:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:43:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10358 backedges. 222 proven. 1525 refuted. 0 times theorem prover too weak. 8611 trivial. 0 not checked. [2023-11-19 02:43:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:43:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 102 states and 201 transitions. [2023-11-19 02:43:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 201 transitions. [2023-11-19 02:43:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2835 [2023-11-19 02:43:01,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:43:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:43:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:43:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 243294 backedges. 1089 proven. 9103 refuted. 0 times theorem prover too weak. 233102 trivial. 0 not checked. [2023-11-19 02:43:13,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:43:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 112 states and 233 transitions. [2023-11-19 02:43:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 233 transitions. [2023-11-19 02:43:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2023-11-19 02:43:13,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:43:13,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:43:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:43:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 69539 backedges. 3684 proven. 3265 refuted. 0 times theorem prover too weak. 62590 trivial. 0 not checked. [2023-11-19 02:43:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:43:18,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 112 states and 232 transitions. [2023-11-19 02:43:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 232 transitions. [2023-11-19 02:43:18,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2023-11-19 02:43:18,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:43:18,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:43:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:43:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 84083 backedges. 4025 proven. 5622 refuted. 0 times theorem prover too weak. 74436 trivial. 0 not checked. [2023-11-19 02:43:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:43:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 112 states and 231 transitions. [2023-11-19 02:43:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 231 transitions. [2023-11-19 02:43:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2373 [2023-11-19 02:43:24,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:43:24,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms