./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC --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 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:08:37,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:08:37,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:08:37,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:08:37,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:08:37,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:08:37,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:08:37,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:08:37,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:08:37,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:08:37,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:08:37,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:08:37,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:08:37,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:08:37,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:08:37,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:08:37,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:08:37,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:08:37,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:08:37,985 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:08:37,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:08:37,986 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:08:37,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:08:37,987 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:08:37,988 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:08:37,988 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:08:37,989 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:08:37,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:08:37,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:37,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:08:37,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:08:37,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:08:37,992 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:08:37,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:08:37,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:08:37,992 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_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a [2023-11-23 20:08:38,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:08:38,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:08:38,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:08:38,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:08:38,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:08:38,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2023-11-23 20:08:41,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:08:41,752 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:08:41,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2023-11-23 20:08:41,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/data/5b49f099a/8f99f2fe67984838a2967efd19ac1683/FLAGc17fd73a0 [2023-11-23 20:08:41,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/data/5b49f099a/8f99f2fe67984838a2967efd19ac1683 [2023-11-23 20:08:41,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:08:41,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:08:41,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:41,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:08:41,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:08:41,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:41" (1/1) ... [2023-11-23 20:08:41,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c80dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:41, skipping insertion in model container [2023-11-23 20:08:41,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:08:41" (1/1) ... [2023-11-23 20:08:41,865 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:08:42,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:42,293 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:08:42,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:08:42,394 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:08:42,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42 WrapperNode [2023-11-23 20:08:42,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:08:42,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:42,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:08:42,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:08:42,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,447 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2023-11-23 20:08:42,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:08:42,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:08:42,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:08:42,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:08:42,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:08:42,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:08:42,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:08:42,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:08:42,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:08:42" (1/1) ... [2023-11-23 20:08:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:08:42,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:08:42,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:08:42,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-23 20:08:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-23 20:08:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:08:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:08:42,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:08:42,694 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:08:42,696 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:08:42,979 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:08:43,046 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:08:43,046 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 20:08:43,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:43 BoogieIcfgContainer [2023-11-23 20:08:43,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:08:43,049 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:08:43,049 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:08:43,067 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:08:43,068 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:43" (1/1) ... [2023-11-23 20:08:43,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:08:43,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2023-11-23 20:08:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-11-23 20:08:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:08:43,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:43,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:08:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 67 transitions. [2023-11-23 20:08:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-11-23 20:08:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:08:43,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:43,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:43,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:08:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 60 states and 71 transitions. [2023-11-23 20:08:43,832 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-11-23 20:08:43,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:08:43,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:43,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:08:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 72 transitions. [2023-11-23 20:08:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-11-23 20:08:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:08:43,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:44,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:44,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 83 transitions. [2023-11-23 20:08:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2023-11-23 20:08:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:08:44,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:44,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 84 transitions. [2023-11-23 20:08:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2023-11-23 20:08:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:08:44,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:44,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 71 states and 88 transitions. [2023-11-23 20:08:44,620 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-11-23 20:08:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:08:44,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:44,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 72 states and 89 transitions. [2023-11-23 20:08:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2023-11-23 20:08:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:08:44,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:44,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 75 states and 94 transitions. [2023-11-23 20:08:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 94 transitions. [2023-11-23 20:08:44,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:08:44,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:44,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:45,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:45,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 95 transitions. [2023-11-23 20:08:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2023-11-23 20:08:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:08:45,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:45,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 20:08:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 60 states and 72 transitions. [2023-11-23 20:08:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2023-11-23 20:08:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:08:45,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 59 states and 71 transitions. [2023-11-23 20:08:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2023-11-23 20:08:45,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:08:45,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:45,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 62 states and 77 transitions. [2023-11-23 20:08:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2023-11-23 20:08:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:08:45,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:45,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:45,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:45,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 63 states and 79 transitions. [2023-11-23 20:08:45,983 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2023-11-23 20:08:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:08:45,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:45,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:46,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:46,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 66 states and 86 transitions. [2023-11-23 20:08:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-11-23 20:08:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:08:46,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 69 states and 92 transitions. [2023-11-23 20:08:46,929 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2023-11-23 20:08:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:08:46,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:46,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:47,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 71 states and 93 transitions. [2023-11-23 20:08:47,296 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2023-11-23 20:08:47,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:08:47,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:47,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:47,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 74 states and 99 transitions. [2023-11-23 20:08:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 99 transitions. [2023-11-23 20:08:47,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:08:47,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:47,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:48,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 76 states and 100 transitions. [2023-11-23 20:08:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2023-11-23 20:08:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:08:48,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:48,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:08:48,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 46 states and 54 transitions. [2023-11-23 20:08:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-11-23 20:08:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:08:48,859 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:48,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 48 states and 58 transitions. [2023-11-23 20:08:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-11-23 20:08:48,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:08:48,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:48,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:49,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 51 states and 63 transitions. [2023-11-23 20:08:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2023-11-23 20:08:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:08:49,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:49,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 50 states and 62 transitions. [2023-11-23 20:08:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-23 20:08:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:08:49,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 54 states and 68 transitions. [2023-11-23 20:08:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-23 20:08:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:08:49,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:08:50,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:50,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 57 states and 70 transitions. [2023-11-23 20:08:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-11-23 20:08:50,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:08:50,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:50,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-23 20:08:51,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 61 states and 73 transitions. [2023-11-23 20:08:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-23 20:08:51,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:08:51,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:51,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:08:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:52,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 64 states and 80 transitions. [2023-11-23 20:08:52,567 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-11-23 20:08:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 20:08:52,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 20:08:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:53,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 68 states and 85 transitions. [2023-11-23 20:08:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2023-11-23 20:08:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 20:08:53,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:08:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 70 states and 86 transitions. [2023-11-23 20:08:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-23 20:08:53,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:08:53,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:53,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 20:08:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 77 states and 94 transitions. [2023-11-23 20:08:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2023-11-23 20:08:55,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 20:08:55,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:08:55,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:08:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:08:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 20:08:57,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:08:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 51 states and 55 transitions. [2023-11-23 20:08:57,190 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-23 20:08:57,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:08:57,190 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-23 20:08:57,198 INFO L751 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2023-11-23 20:08:57,351 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,356 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,356 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,356 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,357 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,357 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,357 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,357 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,357 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:08:57,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:08:57 ImpRootNode [2023-11-23 20:08:57,358 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:08:57,359 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:08:57,359 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:08:57,359 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:08:57,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:08:43" (3/4) ... [2023-11-23 20:08:57,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:08:57,375 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-11-23 20:08:57,383 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-11-23 20:08:57,384 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 20:08:57,385 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:08:57,385 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:08:57,529 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:08:57,529 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:08:57,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:08:57,530 INFO L158 Benchmark]: Toolchain (without parser) took 15731.91ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 89.7MB in the beginning and 154.5MB in the end (delta: -64.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,531 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:08:57,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.34ms. Allocated memory is still 134.2MB. Free memory was 89.2MB in the beginning and 71.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.27ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,537 INFO L158 Benchmark]: Boogie Preprocessor took 36.79ms. Allocated memory is still 134.2MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,537 INFO L158 Benchmark]: RCFGBuilder took 562.36ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 99.9MB in the end (delta: -32.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,537 INFO L158 Benchmark]: CodeCheck took 14309.29ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 99.9MB in the beginning and 160.7MB in the end (delta: -60.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,538 INFO L158 Benchmark]: Witness Printer took 171.13ms. Allocated memory is still 207.6MB. Free memory was 160.7MB in the beginning and 154.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:08:57,540 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, 56 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2742 SdHoareTripleChecker+Valid, 9.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1511 mSDsluCounter, 1187 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 1421 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6033 IncrementalHoareTripleChecker+Invalid, 7454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1421 mSolverCounterUnsat, 797 mSDtfsCounter, 6033 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5639 GetRequests, 5383 SyntacticMatches, 46 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18296 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 789 NumberOfCodeBlocks, 789 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 759 ConstructedInterpolants, 0 QuantifiedInterpolants, 1817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 28 PerfectInterpolantSequences, 190/192 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 626]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 616]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 609]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 614]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.34ms. Allocated memory is still 134.2MB. Free memory was 89.2MB in the beginning and 71.4MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.27ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.79ms. Allocated memory is still 134.2MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.36ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 99.9MB in the end (delta: -32.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 14309.29ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 99.9MB in the beginning and 160.7MB in the end (delta: -60.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 171.13ms. Allocated memory is still 207.6MB. Free memory was 160.7MB in the beginning and 154.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:08:57,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4196e2e-270f-4ef2-87fd-72a8b956df90/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE