./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/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_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/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_285b0c89-5fd9-4b94-8e85-7fada1640557/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 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:14:37,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:14:37,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:14:37,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:14:37,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:14:37,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:14:37,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:14:37,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:14:37,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:14:37,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:14:37,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:14:37,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:14:37,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:14:37,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:14:37,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:14:37,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:14:37,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:14:37,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:14:37,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:14:37,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:14:37,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:14:37,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:14:37,437 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:14:37,437 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:14:37,438 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:14:37,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:14:37,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:37,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:14:37,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:14:37,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:14:37,442 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:14:37,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:14:37,443 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:14:37,443 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_285b0c89-5fd9-4b94-8e85-7fada1640557/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 [2023-11-19 03:14:37,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:14:37,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:14:37,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:14:37,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:14:37,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:14:37,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c [2023-11-19 03:14:41,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:14:41,219 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:14:41,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c [2023-11-19 03:14:41,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/data/642f7f1f3/b092ad5fde9949ccbdf2569a198a0d6b/FLAG7783021c6 [2023-11-19 03:14:41,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/data/642f7f1f3/b092ad5fde9949ccbdf2569a198a0d6b [2023-11-19 03:14:41,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:14:41,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:14:41,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:41,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:14:41,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:14:41,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca3b410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41, skipping insertion in model container [2023-11-19 03:14:41,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,277 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:14:41,419 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_285b0c89-5fd9-4b94-8e85-7fada1640557/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c[537,550] [2023-11-19 03:14:41,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:41,441 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:14:41,454 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_285b0c89-5fd9-4b94-8e85-7fada1640557/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c[537,550] [2023-11-19 03:14:41,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:41,474 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:14:41,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41 WrapperNode [2023-11-19 03:14:41,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:41,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:41,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:14:41,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:14:41,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,506 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-11-19 03:14:41,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:41,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:14:41,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:14:41,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:14:41,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:14:41,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:14:41,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:14:41,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:14:41,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:41,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:14:41,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:14:41,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b0c89-5fd9-4b94-8e85-7fada1640557/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:14:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:14:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:14:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:14:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:14:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:14:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:14:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:14:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:14:41,675 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:14:41,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:14:41,819 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:14:41,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:14:41,884 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:14:41,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:41 BoogieIcfgContainer [2023-11-19 03:14:41,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:14:41,890 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:14:41,890 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:14:41,901 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:14:41,901 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:41" (1/1) ... [2023-11-19 03:14:41,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:14:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-19 03:14:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-19 03:14:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:14:42,003 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:42,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:14:42,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:14:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2023-11-19 03:14:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2023-11-19 03:14:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:14:42,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:42,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:14:42,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:14:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-11-19 03:14:42,845 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-11-19 03:14:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:14:42,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:42,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:42,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 03:14:42,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:14:45,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 51 transitions. [2023-11-19 03:14:45,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2023-11-19 03:14:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:14:45,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:45,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:45,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:14:45,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:46,116 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 03:14:47,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 55 transitions. [2023-11-19 03:14:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 55 transitions. [2023-11-19 03:14:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:14:47,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:47,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:47,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-19 03:14:47,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:14:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 03:15:00,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-19 03:15:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:02,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 66 transitions. [2023-11-19 03:15:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2023-11-19 03:15:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:15:02,227 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:02,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:02,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-19 03:15:02,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:15:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 03:15:28,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.84s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-19 03:15:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:15:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 47 states and 77 transitions. [2023-11-19 03:15:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 77 transitions. [2023-11-19 03:15:29,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:15:29,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:15:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:15:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:15:30,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-19 03:15:30,067 INFO L285 TraceCheckSpWp]: Computing forward predicates...