./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/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_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/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_0e285c2b-43ca-47db-9fa8-1e41957cc223/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 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:16:06,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:16:06,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:16:06,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:16:06,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:16:06,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:16:06,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:16:06,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:16:06,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:16:06,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:16:06,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:16:06,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:16:06,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:16:06,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:16:06,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:16:06,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:16:06,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:16:06,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:16:06,748 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:16:06,748 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:16:06,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:16:06,753 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:16:06,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:16:06,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:16:06,754 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:16:06,755 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:16:06,755 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:16:06,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:16:06,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:06,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:16:06,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:16:06,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:16:06,763 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:16:06,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:16:06,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:16:06,764 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_0e285c2b-43ca-47db-9fa8-1e41957cc223/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2023-11-23 20:16:07,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:16:07,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:16:07,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:16:07,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:16:07,134 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:16:07,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2023-11-23 20:16:10,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:16:10,775 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:16:10,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2023-11-23 20:16:10,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/data/0326ea95d/4cb318c98e844080b44e0e26f8423ae7/FLAGcddb85749 [2023-11-23 20:16:10,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/data/0326ea95d/4cb318c98e844080b44e0e26f8423ae7 [2023-11-23 20:16:10,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:16:10,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:16:10,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:10,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:16:10,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:16:10,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:10" (1/1) ... [2023-11-23 20:16:10,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efc11c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:10, skipping insertion in model container [2023-11-23 20:16:10,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:10" (1/1) ... [2023-11-23 20:16:10,908 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:16:11,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:11,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:16:11,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:11,355 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:16:11,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11 WrapperNode [2023-11-23 20:16:11,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:11,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:11,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:16:11,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:16:11,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,411 INFO L138 Inliner]: procedures = 126, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2023-11-23 20:16:11,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:11,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:16:11,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:16:11,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:16:11,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:16:11,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:16:11,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:16:11,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:16:11,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:11" (1/1) ... [2023-11-23 20:16:11,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:11,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:16:11,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:16:11,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:16:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:16:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:16:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-23 20:16:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-23 20:16:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:16:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:16:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:16:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:16:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:16:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:16:11,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:16:11,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:16:11,832 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:16:11,834 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:16:12,221 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:16:12,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:16:12,288 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 20:16:12,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:12 BoogieIcfgContainer [2023-11-23 20:16:12,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:16:12,297 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:16:12,298 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:16:12,308 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:16:12,308 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:12" (1/1) ... [2023-11-23 20:16:12,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:16:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:12,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2023-11-23 20:16:12,380 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-11-23 20:16:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:16:12,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:12,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:12,743 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 20:16:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 67 transitions. [2023-11-23 20:16:12,789 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-11-23 20:16:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:16:12,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:12,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:13,049 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 20:16:13,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:13,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 60 states and 71 transitions. [2023-11-23 20:16:13,097 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-11-23 20:16:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:16:13,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:13,265 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 20:16:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 72 transitions. [2023-11-23 20:16:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-11-23 20:16:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:16:13,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:13,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:13,394 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 20:16:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 83 transitions. [2023-11-23 20:16:13,684 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2023-11-23 20:16:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:16:13,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:13,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:13,798 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 20:16:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 84 transitions. [2023-11-23 20:16:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2023-11-23 20:16:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:16:13,835 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:13,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:13,960 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 20:16:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:13,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 71 states and 88 transitions. [2023-11-23 20:16:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-11-23 20:16:13,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 20:16:13,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:13,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:14,160 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 20:16:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:14,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 72 states and 89 transitions. [2023-11-23 20:16:14,196 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2023-11-23 20:16:14,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:16:14,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:14,297 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 20:16:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 73 states and 90 transitions. [2023-11-23 20:16:14,318 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2023-11-23 20:16:14,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-23 20:16:14,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:14,473 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 20:16:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 95 transitions. [2023-11-23 20:16:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2023-11-23 20:16:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:16:14,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:14,790 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 20:16:14,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 60 states and 72 transitions. [2023-11-23 20:16:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2023-11-23 20:16:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:16:14,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:14,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:15,054 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 20:16:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:15,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 74 transitions. [2023-11-23 20:16:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2023-11-23 20:16:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:16:15,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:15,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:15,316 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 20:16:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 60 states and 73 transitions. [2023-11-23 20:16:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2023-11-23 20:16:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-23 20:16:15,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:15,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:15,516 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 20:16:15,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:15,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 63 states and 78 transitions. [2023-11-23 20:16:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2023-11-23 20:16:15,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:16:15,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:15,860 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 20:16:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:16,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 66 states and 84 transitions. [2023-11-23 20:16:16,179 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-23 20:16:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:16:16,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:16,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:16:16,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:16,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 70 states and 91 transitions. [2023-11-23 20:16:16,981 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2023-11-23 20:16:16,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:16:16,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:16,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:16:17,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 91 transitions. [2023-11-23 20:16:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2023-11-23 20:16:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:16:17,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:16:18,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 76 states and 96 transitions. [2023-11-23 20:16:18,618 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2023-11-23 20:16:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:16:18,618 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:19,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 82 states and 103 transitions. [2023-11-23 20:16:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2023-11-23 20:16:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:16:19,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:19,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:19,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 84 states and 107 transitions. [2023-11-23 20:16:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2023-11-23 20:16:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:16:19,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:19,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:20,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:20,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 87 states and 114 transitions. [2023-11-23 20:16:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2023-11-23 20:16:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:16:20,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:20,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 90 states and 119 transitions. [2023-11-23 20:16:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 119 transitions. [2023-11-23 20:16:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:16:21,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 89 states and 118 transitions. [2023-11-23 20:16:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2023-11-23 20:16:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:16:21,227 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:21,304 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 20:16:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 55 states and 66 transitions. [2023-11-23 20:16:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2023-11-23 20:16:21,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:16:21,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 20:16:22,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:22,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 59 states and 72 transitions. [2023-11-23 20:16:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2023-11-23 20:16:22,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:16:22,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:22,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 20:16:22,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 61 states and 73 transitions. [2023-11-23 20:16:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-23 20:16:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-23 20:16:22,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:22,639 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 20:16:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 64 states and 80 transitions. [2023-11-23 20:16:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-11-23 20:16:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 20:16:23,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:23,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:23,461 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 20:16:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 68 states and 85 transitions. [2023-11-23 20:16:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2023-11-23 20:16:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 20:16:23,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:23,993 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 20:16:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:24,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 70 states and 86 transitions. [2023-11-23 20:16:24,540 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-23 20:16:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:16:24,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:24,810 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 20:16:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 77 states and 94 transitions. [2023-11-23 20:16:26,460 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2023-11-23 20:16:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 20:16:26,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:26,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:26,558 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 20:16:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 51 states and 55 transitions. [2023-11-23 20:16:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-23 20:16:28,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:16:28,572 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-23 20:16:28,580 INFO L751 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2023-11-23 20:16:28,730 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,736 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,736 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,737 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,737 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,737 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,737 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,737 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,738 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-23 20:16:28,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:16:28 ImpRootNode [2023-11-23 20:16:28,739 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:16:28,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:16:28,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:16:28,740 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:16:28,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:12" (3/4) ... [2023-11-23 20:16:28,744 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:16:28,755 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-11-23 20:16:28,763 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-23 20:16:28,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-23 20:16:28,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 20:16:28,765 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:16:28,896 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:16:28,896 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:16:28,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:16:28,897 INFO L158 Benchmark]: Toolchain (without parser) took 18064.65ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 130.8MB in the beginning and 109.1MB in the end (delta: 21.8MB). Peak memory consumption was 144.0MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,897 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:16:28,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.07ms. Allocated memory is still 165.7MB. Free memory was 130.8MB in the beginning and 113.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.19ms. Allocated memory is still 165.7MB. Free memory was 113.6MB in the beginning and 110.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,902 INFO L158 Benchmark]: Boogie Preprocessor took 67.89ms. Allocated memory is still 165.7MB. Free memory was 110.7MB in the beginning and 109.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:16:28,903 INFO L158 Benchmark]: RCFGBuilder took 815.65ms. Allocated memory is still 165.7MB. Free memory was 109.4MB in the beginning and 112.8MB in the end (delta: -3.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,903 INFO L158 Benchmark]: CodeCheck took 16441.27ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 112.8MB in the beginning and 115.2MB in the end (delta: -2.5MB). Peak memory consumption was 120.9MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,904 INFO L158 Benchmark]: Witness Printer took 156.53ms. Allocated memory is still 287.3MB. Free memory was 115.2MB in the beginning and 109.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:16:28,905 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: 16.2s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2822 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1533 mSDsluCounter, 1192 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 1496 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6279 IncrementalHoareTripleChecker+Invalid, 7775 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1496 mSolverCounterUnsat, 840 mSDtfsCounter, 6279 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5725 GetRequests, 5466 SyntacticMatches, 39 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20532 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 812 NumberOfCodeBlocks, 812 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 782 ConstructedInterpolants, 0 QuantifiedInterpolants, 1802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 26 PerfectInterpolantSequences, 208/212 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: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 632]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 632]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 622]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 615]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 615]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 635]: 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: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 631]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.07ms. Allocated memory is still 165.7MB. Free memory was 130.8MB in the beginning and 113.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.19ms. Allocated memory is still 165.7MB. Free memory was 113.6MB in the beginning and 110.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.89ms. Allocated memory is still 165.7MB. Free memory was 110.7MB in the beginning and 109.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 815.65ms. Allocated memory is still 165.7MB. Free memory was 109.4MB in the beginning and 112.8MB in the end (delta: -3.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * CodeCheck took 16441.27ms. Allocated memory was 165.7MB in the beginning and 287.3MB in the end (delta: 121.6MB). Free memory was 112.8MB in the beginning and 115.2MB in the end (delta: -2.5MB). Peak memory consumption was 120.9MB. Max. memory is 16.1GB. * Witness Printer took 156.53ms. Allocated memory is still 287.3MB. Free memory was 115.2MB in the beginning and 109.1MB 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 20:16:28,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e285c2b-43ca-47db-9fa8-1e41957cc223/bin/ukojak-verify-1t5iHCbJaC/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