./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/reducercommutativity/max10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/reducercommutativity/max10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:17:11,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:17:11,216 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 01:17:11,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:17:11,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:17:11,245 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:17:11,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:17:11,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:17:11,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:17:11,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:17:11,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:17:11,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:17:11,249 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:17:11,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:17:11,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:17:11,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:17:11,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:17:11,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:17:11,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:17:11,252 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:17:11,253 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:17:11,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:17:11,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:17:11,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:17:11,255 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:17:11,255 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:17:11,255 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:17:11,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:17:11,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:17:11,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:17:11,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:17:11,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:17:11,258 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:17:11,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:17:11,259 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:17:11,259 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_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1223a7fef027dae15fda123c8ce40ec49dc779b7d5d627ded9a670697417439e [2023-12-03 01:17:11,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:17:11,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:17:11,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:17:11,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:17:11,519 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:17:11,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/reducercommutativity/max10-1.i [2023-12-03 01:17:14,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:17:14,374 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:17:14,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/sv-benchmarks/c/reducercommutativity/max10-1.i [2023-12-03 01:17:14,380 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/data/0a12134ce/4547897016824086a6ece31c637ac4dc/FLAGa13003fc1 [2023-12-03 01:17:14,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/data/0a12134ce/4547897016824086a6ece31c637ac4dc [2023-12-03 01:17:14,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:17:14,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:17:14,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:17:14,395 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:17:14,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:17:14,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f68984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14, skipping insertion in model container [2023-12-03 01:17:14,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:17:14,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:17:14,575 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:17:14,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:17:14,606 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:17:14,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14 WrapperNode [2023-12-03 01:17:14,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:17:14,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:17:14,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:17:14,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:17:14,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,643 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2023-12-03 01:17:14,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:17:14,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:17:14,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:17:14,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:17:14,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:17:14,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:17:14,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:17:14,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:17:14,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:14" (1/1) ... [2023-12-03 01:17:14,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:17:14,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:17:14,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:17:14,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:17:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:17:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure max [2023-12-03 01:17:14,730 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2023-12-03 01:17:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:17:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:17:14,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:17:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:17:14,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:17:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:17:14,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:17:14,801 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:17:14,804 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:17:14,998 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:17:15,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:17:15,060 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-03 01:17:15,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:17:15 BoogieIcfgContainer [2023-12-03 01:17:15,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:17:15,063 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:17:15,063 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:17:15,073 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:17:15,073 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:17:15" (1/1) ... [2023-12-03 01:17:15,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:17:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2023-12-03 01:17:15,137 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-12-03 01:17:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 01:17:15,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2023-12-03 01:17:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-12-03 01:17:15,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 01:17:15,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2023-12-03 01:17:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-12-03 01:17:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 01:17:15,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2023-12-03 01:17:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-12-03 01:17:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:17:15,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:17:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2023-12-03 01:17:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-12-03 01:17:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:17:15,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 34 states and 40 transitions. [2023-12-03 01:17:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-12-03 01:17:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:17:15,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:15,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 31 states and 35 transitions. [2023-12-03 01:17:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-12-03 01:17:16,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 01:17:16,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 01:17:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2023-12-03 01:17:16,255 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-12-03 01:17:16,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:17:16,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 01:17:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 34 states and 39 transitions. [2023-12-03 01:17:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-12-03 01:17:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 01:17:16,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:16,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2023-12-03 01:17:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-12-03 01:17:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 01:17:16,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2023-12-03 01:17:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-12-03 01:17:16,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:17:16,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 43 states and 48 transitions. [2023-12-03 01:17:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-12-03 01:17:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:17:17,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:17,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 46 states and 51 transitions. [2023-12-03 01:17:17,869 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2023-12-03 01:17:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 01:17:17,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:17,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:18,082 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:18,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2023-12-03 01:17:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-12-03 01:17:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:17:18,373 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:18,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 52 states and 57 transitions. [2023-12-03 01:17:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2023-12-03 01:17:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 01:17:18,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:19,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 55 states and 60 transitions. [2023-12-03 01:17:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 60 transitions. [2023-12-03 01:17:19,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 01:17:19,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:19,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:19,831 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:17:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 58 states and 62 transitions. [2023-12-03 01:17:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2023-12-03 01:17:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:17:20,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-03 01:17:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 60 states and 65 transitions. [2023-12-03 01:17:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2023-12-03 01:17:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:17:20,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-03 01:17:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 59 states and 64 transitions. [2023-12-03 01:17:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2023-12-03 01:17:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 01:17:20,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:20,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-03 01:17:21,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 56 states and 59 transitions. [2023-12-03 01:17:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2023-12-03 01:17:21,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 01:17:21,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-12-03 01:17:21,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 57 states and 60 transitions. [2023-12-03 01:17:21,630 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2023-12-03 01:17:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 01:17:21,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:21,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-03 01:17:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 59 states and 63 transitions. [2023-12-03 01:17:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2023-12-03 01:17:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 01:17:21,835 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:21,909 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-03 01:17:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 60 states and 64 transitions. [2023-12-03 01:17:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2023-12-03 01:17:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 01:17:21,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-03 01:17:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 61 states and 65 transitions. [2023-12-03 01:17:22,141 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2023-12-03 01:17:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:17:22,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:22,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-03 01:17:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 62 states and 66 transitions. [2023-12-03 01:17:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2023-12-03 01:17:22,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 01:17:22,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-12-03 01:17:22,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 64 states and 69 transitions. [2023-12-03 01:17:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2023-12-03 01:17:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 01:17:22,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:22,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:22,708 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-12-03 01:17:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 63 states and 68 transitions. [2023-12-03 01:17:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2023-12-03 01:17:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 01:17:22,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-12-03 01:17:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 62 states and 67 transitions. [2023-12-03 01:17:23,553 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2023-12-03 01:17:23,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 01:17:23,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:23,680 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-12-03 01:17:23,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 61 states and 66 transitions. [2023-12-03 01:17:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2023-12-03 01:17:23,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 01:17:23,989 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:23,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-03 01:17:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 60 states and 65 transitions. [2023-12-03 01:17:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2023-12-03 01:17:24,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:17:24,353 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 30 iterations. [2023-12-03 01:17:24,361 INFO L751 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2023-12-03 01:17:24,549 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-12-03 01:17:24,556 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-12-03 01:17:24,556 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:17:24,557 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-12-03 01:17:24,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:17:24 ImpRootNode [2023-12-03 01:17:24,557 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:17:24,558 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:17:24,558 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:17:24,558 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:17:24,559 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:17:15" (3/4) ... [2023-12-03 01:17:24,561 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:17:24,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2023-12-03 01:17:24,569 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-12-03 01:17:24,569 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-03 01:17:24,569 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:17:24,570 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:17:24,672 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:17:24,673 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:17:24,673 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:17:24,674 INFO L158 Benchmark]: Toolchain (without parser) took 10280.03ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 113.5MB in the beginning and 117.7MB in the end (delta: -4.1MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,674 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:17:24,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.71ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 102.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.52ms. Allocated memory is still 146.8MB. Free memory was 102.4MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,676 INFO L158 Benchmark]: Boogie Preprocessor took 26.47ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 99.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:17:24,676 INFO L158 Benchmark]: RCFGBuilder took 391.05ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 107.2MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,676 INFO L158 Benchmark]: CodeCheck took 9494.52ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 107.2MB in the beginning and 122.9MB in the end (delta: -15.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,677 INFO L158 Benchmark]: Witness Printer took 115.16ms. Allocated memory is still 176.2MB. Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-03 01:17:24,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 30, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1294 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 642 mSDsluCounter, 280 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1935 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4485 IncrementalHoareTripleChecker+Invalid, 6420 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1935 mSolverCounterUnsat, 280 mSDtfsCounter, 4485 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5574 GetRequests, 5300 SyntacticMatches, 116 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11606 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 955 ConstructedInterpolants, 0 QuantifiedInterpolants, 1405 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 14 PerfectInterpolantSequences, 2205/2634 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((1 <= i) || (i == 0)) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((i == 0) || (1 <= i)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (0 <= (i + 2147483648)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.71ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 102.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.52ms. Allocated memory is still 146.8MB. Free memory was 102.4MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.47ms. Allocated memory is still 146.8MB. Free memory was 101.0MB in the beginning and 99.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.05ms. Allocated memory is still 146.8MB. Free memory was 99.7MB in the beginning and 107.2MB in the end (delta: -7.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 9494.52ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 107.2MB in the beginning and 122.9MB in the end (delta: -15.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 115.16ms. Allocated memory is still 176.2MB. Free memory was 122.9MB in the beginning and 117.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:17:24,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d30dd6e-68c8-446c-bbbe-d0c37e156ea8/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE