./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/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_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV --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-cf1a783 [2023-11-12 00:04:27,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:04:27,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-12 00:04:27,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:04:27,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:04:27,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:04:27,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:04:27,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:04:27,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:04:27,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:04:27,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:04:27,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:04:27,936 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:04:27,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:04:27,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:04:27,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:04:27,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:04:27,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:04:27,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:04:27,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:04:27,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:04:27,942 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:04:27,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:04:27,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:04:27,943 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:04:27,944 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:04:27,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:04:27,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:04:27,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:04:27,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:04:27,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:04:27,946 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:04:27,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:04:27,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:04:27,948 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_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5247496942546516118f3c28fa350944e097bdf15ee64734ca287a29ad51a034 [2023-11-12 00:04:28,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:04:28,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:04:28,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:04:28,293 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:04:28,293 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:04:28,295 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2023-11-12 00:04:31,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:04:31,900 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:04:31,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/sv-benchmarks/c/list-simple/dll2c_update_all_reverse.i [2023-11-12 00:04:31,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/data/9f01ce4cc/be7ece39faac456b885ca43c48d80231/FLAGeb730a63e [2023-11-12 00:04:31,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/data/9f01ce4cc/be7ece39faac456b885ca43c48d80231 [2023-11-12 00:04:31,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:04:31,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:04:31,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:04:31,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:04:31,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:04:31,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:04:31" (1/1) ... [2023-11-12 00:04:31,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6121979f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:31, skipping insertion in model container [2023-11-12 00:04:31,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:04:31" (1/1) ... [2023-11-12 00:04:31,999 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:04:32,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:04:32,426 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:04:32,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:04:32,580 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:04:32,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32 WrapperNode [2023-11-12 00:04:32,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:04:32,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:04:32,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:04:32,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:04:32,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,659 INFO L138 Inliner]: procedures = 126, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2023-11-12 00:04:32,665 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:04:32,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:04:32,666 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:04:32,666 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:04:32,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:04:32,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:04:32,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:04:32,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:04:32,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:32" (1/1) ... [2023-11-12 00:04:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:04:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:04:32,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:04:32,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:04:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:04:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:04:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-12 00:04:32,808 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-12 00:04:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:04:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:04:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:04:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:04:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:04:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:04:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:04:32,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:04:32,940 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:04:32,942 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:04:33,269 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:04:33,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:04:33,349 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:04:33,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:04:33 BoogieIcfgContainer [2023-11-12 00:04:33,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:04:33,354 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:04:33,354 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:04:33,363 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:04:33,364 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:04:33" (1/1) ... [2023-11-12 00:04:33,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:04:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2023-11-12 00:04:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2023-11-12 00:04:33,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:04:33,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:33,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:04:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 67 transitions. [2023-11-12 00:04:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-11-12 00:04:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:04:33,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:33,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:04:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 60 states and 71 transitions. [2023-11-12 00:04:34,162 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2023-11-12 00:04:34,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:04:34,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:34,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 00:04:34,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 72 transitions. [2023-11-12 00:04:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-11-12 00:04:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:04:34,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:34,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 83 transitions. [2023-11-12 00:04:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2023-11-12 00:04:34,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:04:34,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:34,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 69 states and 84 transitions. [2023-11-12 00:04:34,943 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2023-11-12 00:04:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:04:34,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:34,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 71 states and 88 transitions. [2023-11-12 00:04:35,077 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-11-12 00:04:35,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:04:35,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:35,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 72 states and 89 transitions. [2023-11-12 00:04:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2023-11-12 00:04:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:04:35,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:35,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:35,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:35,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 73 states and 90 transitions. [2023-11-12 00:04:35,349 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2023-11-12 00:04:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:04:35,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:35,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 95 transitions. [2023-11-12 00:04:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 95 transitions. [2023-11-12 00:04:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:04:35,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:35,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:04:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 60 states and 72 transitions. [2023-11-12 00:04:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2023-11-12 00:04:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:04:36,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:36,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 61 states and 74 transitions. [2023-11-12 00:04:36,315 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2023-11-12 00:04:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:04:36,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:36,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:36,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 60 states and 73 transitions. [2023-11-12 00:04:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 73 transitions. [2023-11-12 00:04:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:04:36,489 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:36,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 63 states and 78 transitions. [2023-11-12 00:04:36,805 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2023-11-12 00:04:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:04:36,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:36,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 66 states and 84 transitions. [2023-11-12 00:04:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2023-11-12 00:04:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:04:37,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:37,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 70 states and 91 transitions. [2023-11-12 00:04:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2023-11-12 00:04:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:04:38,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:38,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 71 states and 91 transitions. [2023-11-12 00:04:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2023-11-12 00:04:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:04:38,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:38,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 76 states and 96 transitions. [2023-11-12 00:04:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2023-11-12 00:04:39,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 00:04:39,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:39,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:41,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 82 states and 103 transitions. [2023-11-12 00:04:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2023-11-12 00:04:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 00:04:41,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:41,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 84 states and 107 transitions. [2023-11-12 00:04:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2023-11-12 00:04:41,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 00:04:41,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 87 states and 114 transitions. [2023-11-12 00:04:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2023-11-12 00:04:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 00:04:42,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:42,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 90 states and 119 transitions. [2023-11-12 00:04:42,410 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 119 transitions. [2023-11-12 00:04:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 00:04:42,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:42,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 89 states and 118 transitions. [2023-11-12 00:04:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2023-11-12 00:04:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 00:04:42,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:42,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:04:43,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:43,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 55 states and 66 transitions. [2023-11-12 00:04:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2023-11-12 00:04:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:04:43,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:04:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 59 states and 72 transitions. [2023-11-12 00:04:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2023-11-12 00:04:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:04:43,445 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:43,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:04:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 61 states and 73 transitions. [2023-11-12 00:04:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-12 00:04:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:04:43,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:43,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:04:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 64 states and 80 transitions. [2023-11-12 00:04:44,579 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-11-12 00:04:44,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 00:04:44,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:44,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 00:04:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 68 states and 85 transitions. [2023-11-12 00:04:45,254 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2023-11-12 00:04:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 00:04:45,255 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:45,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:04:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 70 states and 86 transitions. [2023-11-12 00:04:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-12 00:04:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-12 00:04:45,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:04:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 77 states and 94 transitions. [2023-11-12 00:04:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 94 transitions. [2023-11-12 00:04:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:04:47,664 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:04:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:04:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-12 00:04:49,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 51 states and 55 transitions. [2023-11-12 00:04:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2023-11-12 00:04:49,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:04:49,657 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-12 00:04:49,666 INFO L753 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2023-11-12 00:04:49,813 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,817 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,818 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,818 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,818 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-12 00:04:49,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:04:49 ImpRootNode [2023-11-12 00:04:49,818 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:04:49,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:04:49,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:04:49,819 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:04:49,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:04:33" (3/4) ... [2023-11-12 00:04:49,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:04:49,825 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-11-12 00:04:49,832 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-12 00:04:49,833 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-12 00:04:49,833 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:04:49,834 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:04:49,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:04:49,946 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/witness.yml [2023-11-12 00:04:49,946 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:04:49,947 INFO L158 Benchmark]: Toolchain (without parser) took 18000.29ms. Allocated memory was 119.5MB in the beginning and 264.2MB in the end (delta: 144.7MB). Free memory was 72.3MB in the beginning and 120.0MB in the end (delta: -47.7MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,947 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 119.5MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:04:49,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.44ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 72.3MB in the beginning and 121.0MB in the end (delta: -48.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.83ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,954 INFO L158 Benchmark]: Boogie Preprocessor took 58.45ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,954 INFO L158 Benchmark]: RCFGBuilder took 627.74ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 92.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,954 INFO L158 Benchmark]: CodeCheck took 16464.84ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 92.7MB in the beginning and 125.2MB in the end (delta: -32.5MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,955 INFO L158 Benchmark]: Witness Printer took 127.44ms. Allocated memory is still 264.2MB. Free memory was 125.2MB in the beginning and 120.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:04:49,957 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: 16.3s, 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, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1533 mSDsluCounter, 1192 SdHoareTripleChecker+Invalid, 9.8s 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: 0.1s 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 0.64ms. Allocated memory is still 119.5MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.44ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 72.3MB in the beginning and 121.0MB in the end (delta: -48.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.83ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.45ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.74ms. Allocated memory is still 151.0MB. Free memory was 116.8MB in the beginning and 92.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 16464.84ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 92.7MB in the beginning and 125.2MB in the end (delta: -32.5MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. * Witness Printer took 127.44ms. Allocated memory is still 264.2MB. Free memory was 125.2MB in the beginning and 120.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-12 00:04:49,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_188b9f14-a7a4-4a0d-877b-d39251afb010/bin/ukojak-verify-0OAaufAVZV/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