./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 527bcce2 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_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/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_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2 --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-527bcce [2023-11-21 18:40:58,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:40:58,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:40:58,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:40:58,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:40:58,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:40:58,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:40:58,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:40:58,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:40:58,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:40:58,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:40:58,272 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:40:58,272 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:40:58,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:40:58,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:40:58,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:40:58,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:40:58,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:40:58,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:40:58,277 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:40:58,277 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:40:58,278 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:40:58,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:40:58,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:40:58,280 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:40:58,280 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:40:58,281 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:40:58,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:40:58,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:40:58,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:40:58,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:40:58,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:40:58,284 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:40:58,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:40:58,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:40:58,285 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_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fecbd384f63aa34e01807a3a6735a322a2435f1312f0df3ed763fde7f43fe0a [2023-11-21 18:40:58,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:40:58,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:40:58,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:40:58,637 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:40:58,638 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:40:58,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2023-11-21 18:41:01,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:41:02,164 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:41:02,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/sv-benchmarks/c/list-simple/sll2c_update_all_reverse.i [2023-11-21 18:41:02,182 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/data/41d5d9c2e/ec24cc237dd24a3aac779f8f55c0ee46/FLAG7e33b5ffd [2023-11-21 18:41:02,196 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/data/41d5d9c2e/ec24cc237dd24a3aac779f8f55c0ee46 [2023-11-21 18:41:02,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:41:02,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:41:02,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:02,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:41:02,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:41:02,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20c5ed19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02, skipping insertion in model container [2023-11-21 18:41:02,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:41:02,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:02,689 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:41:02,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:02,811 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:41:02,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02 WrapperNode [2023-11-21 18:41:02,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:02,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:02,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:41:02,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:41:02,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,894 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2023-11-21 18:41:02,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:02,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:41:02,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:41:02,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:41:02,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:41:02,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:41:02,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:41:02,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:41:02,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:02" (1/1) ... [2023-11-21 18:41:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:02,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:41:02,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:41:02,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:41:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:41:03,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:41:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-21 18:41:03,027 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-21 18:41:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:41:03,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:41:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 18:41:03,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 18:41:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:41:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:41:03,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:41:03,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:41:03,168 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:41:03,176 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:41:03,564 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:41:03,673 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:41:03,674 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 18:41:03,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:03 BoogieIcfgContainer [2023-11-21 18:41:03,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:41:03,677 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:41:03,678 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:41:03,689 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:41:03,691 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:03" (1/1) ... [2023-11-21 18:41:03,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:41:03,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2023-11-21 18:41:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-11-21 18:41:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:41:03,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:03,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:04,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:41:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:04,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 67 transitions. [2023-11-21 18:41:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-11-21 18:41:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:41:04,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:41:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:04,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 60 states and 71 transitions. [2023-11-21 18:41:04,481 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-11-21 18:41:04,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:41:04,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:04,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:41:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:04,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 72 transitions. [2023-11-21 18:41:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-11-21 18:41:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:41:04,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:04,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:04,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 83 transitions. [2023-11-21 18:41:05,158 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2023-11-21 18:41:05,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 18:41:05,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:05,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 84 transitions. [2023-11-21 18:41:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2023-11-21 18:41:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:41:05,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 71 states and 88 transitions. [2023-11-21 18:41:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-11-21 18:41:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:41:05,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 72 states and 89 transitions. [2023-11-21 18:41:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2023-11-21 18:41:05,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:41:05,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 75 states and 94 transitions. [2023-11-21 18:41:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 94 transitions. [2023-11-21 18:41:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:41:05,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:05,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:05,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 95 transitions. [2023-11-21 18:41:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2023-11-21 18:41:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:41:05,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:05,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 18:41:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 60 states and 72 transitions. [2023-11-21 18:41:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2023-11-21 18:41:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:41:06,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:06,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 59 states and 71 transitions. [2023-11-21 18:41:06,274 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2023-11-21 18:41:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:41:06,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:06,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 62 states and 77 transitions. [2023-11-21 18:41:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2023-11-21 18:41:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:41:06,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:06,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:06,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 63 states and 79 transitions. [2023-11-21 18:41:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2023-11-21 18:41:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:41:06,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:06,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:07,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 66 states and 86 transitions. [2023-11-21 18:41:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-11-21 18:41:07,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:41:07,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:07,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:07,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 69 states and 92 transitions. [2023-11-21 18:41:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2023-11-21 18:41:07,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:41:07,835 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:07,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 71 states and 93 transitions. [2023-11-21 18:41:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2023-11-21 18:41:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 18:41:08,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 74 states and 99 transitions. [2023-11-21 18:41:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 99 transitions. [2023-11-21 18:41:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:41:08,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:08,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 76 states and 100 transitions. [2023-11-21 18:41:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2023-11-21 18:41:09,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:41:09,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:09,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:09,466 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 18:41:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 46 states and 54 transitions. [2023-11-21 18:41:09,819 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2023-11-21 18:41:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:41:09,821 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 48 states and 58 transitions. [2023-11-21 18:41:09,937 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2023-11-21 18:41:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:41:09,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 51 states and 63 transitions. [2023-11-21 18:41:10,080 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2023-11-21 18:41:10,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:41:10,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:10,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:10,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 50 states and 62 transitions. [2023-11-21 18:41:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2023-11-21 18:41:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:41:10,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:10,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 54 states and 68 transitions. [2023-11-21 18:41:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-21 18:41:10,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:41:10,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:41:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:11,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 57 states and 70 transitions. [2023-11-21 18:41:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2023-11-21 18:41:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 18:41:11,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:11,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:41:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 61 states and 73 transitions. [2023-11-21 18:41:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-21 18:41:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:41:12,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:12,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:41:13,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:13,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 64 states and 80 transitions. [2023-11-21 18:41:13,469 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-11-21 18:41:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:41:13,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:13,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:41:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:14,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 68 states and 85 transitions. [2023-11-21 18:41:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2023-11-21 18:41:14,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:41:14,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:14,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 18:41:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:14,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 70 states and 86 transitions. [2023-11-21 18:41:14,654 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-21 18:41:14,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 18:41:14,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:14,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 18:41:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 77 states and 94 transitions. [2023-11-21 18:41:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2023-11-21 18:41:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 18:41:16,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:16,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:41:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-21 18:41:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 51 states and 55 transitions. [2023-11-21 18:41:18,068 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-21 18:41:18,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:41:18,069 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-21 18:41:18,078 INFO L751 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2023-11-21 18:41:18,226 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,232 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,232 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,232 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,232 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,233 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,239 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,240 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,241 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-21 18:41:18,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:41:18 ImpRootNode [2023-11-21 18:41:18,241 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:41:18,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:41:18,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:41:18,243 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:41:18,243 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:03" (3/4) ... [2023-11-21 18:41:18,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:41:18,251 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-11-21 18:41:18,265 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-11-21 18:41:18,266 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 18:41:18,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:41:18,267 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:41:18,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:41:18,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:41:18,419 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:41:18,420 INFO L158 Benchmark]: Toolchain (without parser) took 16219.95ms. Allocated memory was 148.9MB in the beginning and 285.2MB in the end (delta: 136.3MB). Free memory was 102.3MB in the beginning and 101.1MB in the end (delta: 1.2MB). Peak memory consumption was 140.5MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,420 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 148.9MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:18,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.06ms. Allocated memory is still 148.9MB. Free memory was 102.0MB in the beginning and 84.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.41ms. Allocated memory is still 148.9MB. Free memory was 84.4MB in the beginning and 82.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,421 INFO L158 Benchmark]: Boogie Preprocessor took 53.34ms. Allocated memory is still 148.9MB. Free memory was 82.1MB in the beginning and 80.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,425 INFO L158 Benchmark]: RCFGBuilder took 726.65ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 80.0MB in the beginning and 161.2MB in the end (delta: -81.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,425 INFO L158 Benchmark]: CodeCheck took 14564.22ms. Allocated memory was 197.1MB in the beginning and 285.2MB in the end (delta: 88.1MB). Free memory was 161.2MB in the beginning and 107.4MB in the end (delta: 53.7MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,426 INFO L158 Benchmark]: Witness Printer took 176.97ms. Allocated memory is still 285.2MB. Free memory was 107.4MB in the beginning and 101.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:41:18,428 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: 14.4s, 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, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1511 mSDsluCounter, 1187 SdHoareTripleChecker+Invalid, 8.6s 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, 3.1s 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 0.32ms. Allocated memory is still 148.9MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.06ms. Allocated memory is still 148.9MB. Free memory was 102.0MB in the beginning and 84.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.41ms. Allocated memory is still 148.9MB. Free memory was 84.4MB in the beginning and 82.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.34ms. Allocated memory is still 148.9MB. Free memory was 82.1MB in the beginning and 80.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 726.65ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 80.0MB in the beginning and 161.2MB in the end (delta: -81.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * CodeCheck took 14564.22ms. Allocated memory was 197.1MB in the beginning and 285.2MB in the end (delta: 88.1MB). Free memory was 161.2MB in the beginning and 107.4MB in the end (delta: 53.7MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * Witness Printer took 176.97ms. Allocated memory is still 285.2MB. Free memory was 107.4MB in the beginning and 101.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:41:18,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ef0268a-adac-41f4-9c2a-cffef8a46cb5/bin/ukojak-verify-i0I2FZA1j2/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