./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.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_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/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_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/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_fe6be571-6404-4dba-a213-02eeb1be535d/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 b0dc7e6cdf006545b97e616af165994b39a2e54c024b52d6607380c5e84ee914 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:18:34,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:18:34,673 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:18:34,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:18:34,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:18:34,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:18:34,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:18:34,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:18:34,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:18:34,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:18:34,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:18:34,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:18:34,723 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:18:34,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:18:34,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:18:34,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:18:34,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:18:34,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:18:34,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:18:34,727 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:18:34,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:18:34,728 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:18:34,729 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:18:34,729 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:18:34,730 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:18:34,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:18:34,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:34,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:18:34,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:18:34,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:18:34,734 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:18:34,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:18:34,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:18:34,735 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_fe6be571-6404-4dba-a213-02eeb1be535d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0dc7e6cdf006545b97e616af165994b39a2e54c024b52d6607380c5e84ee914 [2023-11-19 03:18:35,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:18:35,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:18:35,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:18:35,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:18:35,084 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:18:35,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2023-11-19 03:18:38,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:18:38,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:18:38,539 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2023-11-19 03:18:38,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/data/ac4e437a8/2fa336c9e5874abb902591a8654e379c/FLAG9daaece51 [2023-11-19 03:18:38,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/data/ac4e437a8/2fa336c9e5874abb902591a8654e379c [2023-11-19 03:18:38,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:18:38,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:18:38,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:38,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:18:38,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:18:38,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66944058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38, skipping insertion in model container [2023-11-19 03:18:38,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,606 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:18:38,768 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_fe6be571-6404-4dba-a213-02eeb1be535d/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c[526,539] [2023-11-19 03:18:38,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:38,799 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:18:38,814 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_fe6be571-6404-4dba-a213-02eeb1be535d/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c[526,539] [2023-11-19 03:18:38,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:38,837 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:18:38,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38 WrapperNode [2023-11-19 03:18:38,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:38,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:38,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:18:38,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:18:38,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,875 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2023-11-19 03:18:38,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:38,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:18:38,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:18:38,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:18:38,887 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:18:38,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:18:38,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:18:38,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:18:38,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:38" (1/1) ... [2023-11-19 03:18:38,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:38,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:18:38,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:18:38,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe6be571-6404-4dba-a213-02eeb1be535d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:18:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:18:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:18:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:18:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:18:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:18:39,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:18:39,102 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:18:39,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:18:39,345 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:18:39,414 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:18:39,414 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:18:39,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:39 BoogieIcfgContainer [2023-11-19 03:18:39,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:18:39,420 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:18:39,421 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:18:39,431 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:18:39,432 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:39" (1/1) ... [2023-11-19 03:18:39,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:18:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:39,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2023-11-19 03:18:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2023-11-19 03:18:39,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:18:39,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:39,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:39,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:18:39,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:39,727 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 03:18:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2023-11-19 03:18:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2023-11-19 03:18:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:18:39,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:39,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:40,022 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 03:18:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 27 states and 43 transitions. [2023-11-19 03:18:40,144 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 43 transitions. [2023-11-19 03:18:40,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:18:40,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:40,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:40,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:18:40,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:18:40,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 46 transitions. [2023-11-19 03:18:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-11-19 03:18:40,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:18:40,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:40,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:18:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 52 transitions. [2023-11-19 03:18:41,190 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2023-11-19 03:18:41,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:18:41,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:41,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:41,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:18:41,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:18:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 38 states and 61 transitions. [2023-11-19 03:18:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2023-11-19 03:18:42,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:18:42,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:42,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:42,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:42,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:42,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:18:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 71 transitions. [2023-11-19 03:18:42,420 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2023-11-19 03:18:42,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:18:42,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:42,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:42,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:18:42,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:18:43,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:43,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 52 states and 106 transitions. [2023-11-19 03:18:43,693 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 106 transitions. [2023-11-19 03:18:43,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:18:43,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:43,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:43,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:18:43,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 03:18:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 54 states and 112 transitions. [2023-11-19 03:18:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 112 transitions. [2023-11-19 03:18:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:18:44,254 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:44,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:44,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:18:44,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 03:18:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 59 states and 130 transitions. [2023-11-19 03:18:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 130 transitions. [2023-11-19 03:18:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:18:44,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:44,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:44,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:18:44,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 03:18:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 61 states and 131 transitions. [2023-11-19 03:18:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 131 transitions. [2023-11-19 03:18:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:18:45,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:45,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:18:45,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:46,120 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:18:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 66 states and 149 transitions. [2023-11-19 03:18:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 149 transitions. [2023-11-19 03:18:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:18:47,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:47,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:47,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 03:18:47,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:18:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 68 states and 150 transitions. [2023-11-19 03:18:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 150 transitions. [2023-11-19 03:18:48,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 03:18:48,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:48,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:48,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 03:18:48,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:18:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:49,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 71 states and 165 transitions. [2023-11-19 03:18:49,076 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 165 transitions. [2023-11-19 03:18:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:18:49,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:49,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:18:49,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 03:18:49,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 72 states and 167 transitions. [2023-11-19 03:18:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 167 transitions. [2023-11-19 03:18:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:18:49,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:49,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:18:49,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 03:18:50,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:50,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 75 states and 176 transitions. [2023-11-19 03:18:50,338 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 176 transitions. [2023-11-19 03:18:50,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 03:18:50,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:50,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:50,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:50,458 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 03:18:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 75 states and 174 transitions. [2023-11-19 03:18:50,805 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 174 transitions. [2023-11-19 03:18:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:18:50,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:50,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:50,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:50,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 03:18:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 85 states and 235 transitions. [2023-11-19 03:18:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 235 transitions. [2023-11-19 03:18:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:18:53,313 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:53,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:53,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:53,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 03:18:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:53,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 85 states and 234 transitions. [2023-11-19 03:18:53,711 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 234 transitions. [2023-11-19 03:18:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:18:53,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:53,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:53,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:18:53,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-19 03:18:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 88 states and 246 transitions. [2023-11-19 03:18:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 246 transitions. [2023-11-19 03:18:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:18:55,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:55,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:55,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:18:55,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-19 03:18:56,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 90 states and 253 transitions. [2023-11-19 03:18:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 253 transitions. [2023-11-19 03:18:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:18:56,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:56,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:57,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:18:57,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 03:18:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 92 states and 259 transitions. [2023-11-19 03:18:57,896 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 259 transitions. [2023-11-19 03:18:57,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:18:57,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:57,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:57,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:18:57,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-19 03:18:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 94 states and 260 transitions. [2023-11-19 03:18:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 260 transitions. [2023-11-19 03:18:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:18:58,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:58,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:18:58,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:18:58,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:18:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 100 states and 288 transitions. [2023-11-19 03:19:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 288 transitions. [2023-11-19 03:19:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:19:01,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:01,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:19:01,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 103 states and 292 transitions. [2023-11-19 03:19:02,796 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 292 transitions. [2023-11-19 03:19:02,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:19:02,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:02,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:02,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:19:02,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 105 states and 293 transitions. [2023-11-19 03:19:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 293 transitions. [2023-11-19 03:19:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:19:03,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:03,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:03,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:19:03,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 110 states and 325 transitions. [2023-11-19 03:19:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 325 transitions. [2023-11-19 03:19:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:19:06,761 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:06,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:19:06,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 112 states and 330 transitions. [2023-11-19 03:19:07,763 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 330 transitions. [2023-11-19 03:19:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:19:07,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:07,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:07,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:19:07,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:12,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:12,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 123 states and 388 transitions. [2023-11-19 03:19:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 388 transitions. [2023-11-19 03:19:12,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:19:12,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:12,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:19:12,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:19:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 127 states and 393 transitions. [2023-11-19 03:19:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 393 transitions. [2023-11-19 03:19:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:19:15,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:15,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:19:15,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:19:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 132 states and 407 transitions. [2023-11-19 03:19:18,073 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 407 transitions. [2023-11-19 03:19:18,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:19:18,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:18,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:18,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:19:18,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 16 proven. 92 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 03:19:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 136 states and 475 transitions. [2023-11-19 03:19:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 475 transitions. [2023-11-19 03:19:20,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:19:20,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:20,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:20,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:19:20,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 03:19:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 139 states and 485 transitions. [2023-11-19 03:19:22,436 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 485 transitions. [2023-11-19 03:19:22,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 03:19:22,438 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:22,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:19:22,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-19 03:19:23,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 139 states and 481 transitions. [2023-11-19 03:19:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 481 transitions. [2023-11-19 03:19:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 03:19:23,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:23,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:19:23,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 03:19:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:26,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 145 states and 498 transitions. [2023-11-19 03:19:26,449 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 498 transitions. [2023-11-19 03:19:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 03:19:26,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:26,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:26,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:19:26,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 03:19:27,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 145 states and 497 transitions. [2023-11-19 03:19:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 497 transitions. [2023-11-19 03:19:27,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-19 03:19:27,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:27,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:27,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:19:27,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 18 proven. 132 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-19 03:19:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:19:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 145 states and 496 transitions. [2023-11-19 03:19:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 496 transitions. [2023-11-19 03:19:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 03:19:28,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:19:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:19:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:19:28,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:19:28,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:19:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked.