./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/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_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/sum04-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/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_5b7eb276-d581-439e-bd48-7fdd64c9e668/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 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:32:35,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:32:35,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:32:35,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:32:35,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:32:35,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:32:35,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:32:35,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:32:35,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:32:35,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:32:35,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:32:35,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:32:35,981 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:32:35,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:32:35,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:32:35,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:32:35,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:32:35,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:32:35,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:32:35,986 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:32:35,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:32:35,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:32:35,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:32:35,987 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:32:35,988 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:32:35,989 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:32:35,989 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:32:35,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:32:35,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:35,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:32:35,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:32:35,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:32:35,992 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:32:35,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:32:35,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:32:35,993 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_5b7eb276-d581-439e-bd48-7fdd64c9e668/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2023-11-21 18:32:36,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:32:36,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:32:36,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:32:36,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:32:36,362 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:32:36,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/loops/sum04-1.i [2023-11-21 18:32:39,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:32:39,620 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:32:39,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/sv-benchmarks/c/loops/sum04-1.i [2023-11-21 18:32:39,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/data/838f058f0/da92bf32c4214349a61ad1348c4e4e35/FLAGf6d771c08 [2023-11-21 18:32:39,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/data/838f058f0/da92bf32c4214349a61ad1348c4e4e35 [2023-11-21 18:32:39,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:32:39,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:32:39,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:39,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:32:39,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:32:39,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:39,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1addcc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39, skipping insertion in model container [2023-11-21 18:32:39,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:39,697 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:32:39,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:39,925 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:32:39,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:39,957 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:32:39,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39 WrapperNode [2023-11-21 18:32:39,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:39,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:39,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:32:39,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:32:39,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:39,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:39,993 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2023-11-21 18:32:39,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:39,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:32:39,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:32:39,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:32:40,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,006 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:32:40,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:32:40,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:32:40,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:32:40,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:39" (1/1) ... [2023-11-21 18:32:40,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:40,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:32:40,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:32:40,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:32:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:32:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:32:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:32:40,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:32:40,167 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:32:40,170 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:32:40,303 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:32:40,387 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:32:40,387 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:32:40,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:40 BoogieIcfgContainer [2023-11-21 18:32:40,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:32:40,390 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:32:40,390 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:32:40,402 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:32:40,402 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:40" (1/1) ... [2023-11-21 18:32:40,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:32:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-21 18:32:40,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-21 18:32:40,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:32:40,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:40,734 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 18:32:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:40,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-21 18:32:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-21 18:32:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:32:40,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:40,925 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 18:32:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-21 18:32:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-21 18:32:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:32:41,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:41,144 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 18:32:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-21 18:32:41,171 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-21 18:32:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:32:41,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:41,295 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 18:32:41,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-21 18:32:41,382 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-21 18:32:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:32:41,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:41,463 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 18:32:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2023-11-21 18:32:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2023-11-21 18:32:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:32:41,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:41,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2023-11-21 18:32:41,813 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-21 18:32:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:32:41,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 32 states and 43 transitions. [2023-11-21 18:32:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2023-11-21 18:32:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:32:41,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2023-11-21 18:32:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-11-21 18:32:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:32:42,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:42,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:42,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2023-11-21 18:32:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2023-11-21 18:32:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:32:43,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:43,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:32:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 49 states and 71 transitions. [2023-11-21 18:32:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2023-11-21 18:32:43,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 18:32:43,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:43,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 18:32:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:44,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 53 states and 81 transitions. [2023-11-21 18:32:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 81 transitions. [2023-11-21 18:32:44,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:32:44,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:44,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 60 states and 95 transitions. [2023-11-21 18:32:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 95 transitions. [2023-11-21 18:32:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:32:45,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:45,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 62 states and 98 transitions. [2023-11-21 18:32:45,786 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2023-11-21 18:32:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:32:45,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:45,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 18:32:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 65 states and 113 transitions. [2023-11-21 18:32:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 113 transitions. [2023-11-21 18:32:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:32:46,382 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 18:32:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 65 states and 112 transitions. [2023-11-21 18:32:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2023-11-21 18:32:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:32:46,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:46,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-21 18:32:46,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 65 states and 111 transitions. [2023-11-21 18:32:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 111 transitions. [2023-11-21 18:32:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:32:46,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 69 states and 116 transitions. [2023-11-21 18:32:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 116 transitions. [2023-11-21 18:32:47,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:32:47,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:47,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 71 states and 118 transitions. [2023-11-21 18:32:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 118 transitions. [2023-11-21 18:32:47,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:32:47,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:47,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 75 states and 122 transitions. [2023-11-21 18:32:48,031 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 122 transitions. [2023-11-21 18:32:48,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:32:48,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 18:32:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 75 states and 121 transitions. [2023-11-21 18:32:48,288 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 121 transitions. [2023-11-21 18:32:48,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:32:48,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 18:32:48,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:48,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 75 states and 119 transitions. [2023-11-21 18:32:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 119 transitions. [2023-11-21 18:32:48,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:32:48,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-21 18:32:48,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:48,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 75 states and 117 transitions. [2023-11-21 18:32:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 117 transitions. [2023-11-21 18:32:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:32:48,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:48,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:32:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:49,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 78 states and 120 transitions. [2023-11-21 18:32:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 120 transitions. [2023-11-21 18:32:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:32:49,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:49,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:32:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 81 states and 122 transitions. [2023-11-21 18:32:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 122 transitions. [2023-11-21 18:32:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:32:49,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:49,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 88 states and 137 transitions. [2023-11-21 18:32:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 137 transitions. [2023-11-21 18:32:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 18:32:50,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:50,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 90 states and 142 transitions. [2023-11-21 18:32:51,208 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2023-11-21 18:32:51,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 18:32:51,208 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:51,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 18:32:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:51,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 90 states and 141 transitions. [2023-11-21 18:32:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions. [2023-11-21 18:32:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:32:51,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:51,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 93 states and 142 transitions. [2023-11-21 18:32:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 142 transitions. [2023-11-21 18:32:52,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:32:52,510 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 95 states and 143 transitions. [2023-11-21 18:32:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 143 transitions. [2023-11-21 18:32:52,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:32:52,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:52,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 18:32:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 38 states and 46 transitions. [2023-11-21 18:32:53,275 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-11-21 18:32:53,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:32:53,275 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2023-11-21 18:32:53,282 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-21 18:32:53,605 INFO L560 CodeCheckObserver]: Invariant with dag size 28 [2023-11-21 18:32:53,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:32:53 ImpRootNode [2023-11-21 18:32:53,615 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:32:53,616 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:32:53,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:32:53,616 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:32:53,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:40" (3/4) ... [2023-11-21 18:32:53,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:32:53,627 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-21 18:32:53,628 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 18:32:53,628 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 18:32:53,628 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 18:32:53,739 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:32:53,740 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:32:53,740 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:32:53,741 INFO L158 Benchmark]: Toolchain (without parser) took 14083.80ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 124.6MB in the beginning and 179.9MB in the end (delta: -55.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2023-11-21 18:32:53,741 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:53,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.29ms. Allocated memory is still 169.9MB. Free memory was 124.6MB in the beginning and 114.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:32:53,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 113.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:53,743 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 169.9MB. Free memory was 113.0MB in the beginning and 111.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:53,744 INFO L158 Benchmark]: RCFGBuilder took 371.06ms. Allocated memory is still 169.9MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 18:32:53,744 INFO L158 Benchmark]: CodeCheck took 13225.09ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 100.5MB in the beginning and 184.1MB in the end (delta: -83.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:53,745 INFO L158 Benchmark]: Witness Printer took 124.62ms. Allocated memory is still 251.7MB. Free memory was 184.1MB in the beginning and 179.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:32:53,747 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 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3036 SdHoareTripleChecker+Valid, 15.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2777 mSDsluCounter, 836 SdHoareTripleChecker+Invalid, 12.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 540 mSDsCounter, 2116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9375 IncrementalHoareTripleChecker+Invalid, 11491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2116 mSolverCounterUnsat, 296 mSDtfsCounter, 9375 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4534 GetRequests, 4094 SyntacticMatches, 196 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32194 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 551 NumberOfCodeBlocks, 551 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 521 ConstructedInterpolants, 0 QuantifiedInterpolants, 1305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 263/520 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((sn < 2) && (2 < i)) && (0 <= (sn + 2147483648))) || (((4 < sn) && (3 < i)) && (sn <= 6))) || (((sn <= 2) && (2 <= sn)) && (2 <= i))) || (((sn <= 4) && (2 <= sn)) && (2 < i))) || ((i == 1) && (sn == 0))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.29ms. Allocated memory is still 169.9MB. Free memory was 124.6MB in the beginning and 114.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 113.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 169.9MB. Free memory was 113.0MB in the beginning and 111.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.06ms. Allocated memory is still 169.9MB. Free memory was 111.9MB in the beginning and 100.5MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 13225.09ms. Allocated memory was 169.9MB in the beginning and 251.7MB in the end (delta: 81.8MB). Free memory was 100.5MB in the beginning and 184.1MB in the end (delta: -83.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 124.62ms. Allocated memory is still 251.7MB. Free memory was 184.1MB in the beginning and 179.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:32:53,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7eb276-d581-439e-bd48-7fdd64c9e668/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