./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --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 d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 19:29:28,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:29:28,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:29:28,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:29:28,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:29:28,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:29:28,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:29:28,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:29:28,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:29:28,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:29:28,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:29:28,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:29:28,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:29:28,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:29:28,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:29:28,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:29:28,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:29:28,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:29:28,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:29:28,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:29:28,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:29:28,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:29:28,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:29:28,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:29:28,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:29:28,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:29:28,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:29:28,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:29:28,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:29:28,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:29:28,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:29:28,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:29:28,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:29:28,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:29:28,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:29:28,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:29:28,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:29:28,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:29:28,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:29:28,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:29:28,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:29:28,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 19:29:28,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:29:28,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:29:28,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:29:28,710 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:29:28,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:29:28,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:29:28,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:29:28,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 19:29:28,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:29:28,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:29:28,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:29:28,712 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:29:28,712 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:29:28,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:29:28,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:29:28,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:29:28,713 INFO L138 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_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d28004f57c6988e792d07d7254dfd532aeffd19f38063d85c3bfa2c0f504914f [2022-12-14 19:29:28,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:29:28,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:29:28,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:29:28,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:29:28,914 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:29:28,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/loop-simple/nested_2.c [2022-12-14 19:29:31,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:29:31,630 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:29:31,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/sv-benchmarks/c/loop-simple/nested_2.c [2022-12-14 19:29:31,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/data/f3ac2d6b7/b3771ee7bd804636b2f49fda390fa27e/FLAGc29217baf [2022-12-14 19:29:32,059 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/data/f3ac2d6b7/b3771ee7bd804636b2f49fda390fa27e [2022-12-14 19:29:32,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:29:32,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:29:32,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:29:32,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:29:32,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:29:32,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231c49d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32, skipping insertion in model container [2022-12-14 19:29:32,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:29:32,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:29:32,191 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2022-12-14 19:29:32,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:29:32,199 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:29:32,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2022-12-14 19:29:32,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:29:32,218 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:29:32,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32 WrapperNode [2022-12-14 19:29:32,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:29:32,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:29:32,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:29:32,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:29:32,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,240 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-12-14 19:29:32,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:29:32,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:29:32,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:29:32,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:29:32,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:29:32,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:29:32,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:29:32,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:29:32,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:29:32,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:29:32,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:29:32,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:29:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:29:32,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:29:32,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:29:32,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:29:32,355 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:29:32,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:29:32,425 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:29:32,443 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:29:32,443 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 19:29:32,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:29:32 BoogieIcfgContainer [2022-12-14 19:29:32,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:29:32,446 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:29:32,446 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:29:32,453 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:29:32,453 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:29:32" (1/1) ... [2022-12-14 19:29:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:29:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-12-14 19:29:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 19:29:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 19:29:32,502 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:29:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-12-14 19:29:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 19:29:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 19:29:32,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:32,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:29:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-12-14 19:29:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 19:29:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 19:29:32,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:32,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:32,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:29:32,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-12-14 19:29:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 19:29:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:29:32,726 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 19:29:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-12-14 19:29:32,902 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-12-14 19:29:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:29:32,902 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:32,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:29:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2022-12-14 19:29:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-12-14 19:29:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 19:29:33,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:29:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2022-12-14 19:29:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-12-14 19:29:33,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 19:29:33,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 19:29:33,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2022-12-14 19:29:33,280 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-12-14 19:29:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 19:29:33,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 19:29:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2022-12-14 19:29:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-12-14 19:29:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 19:29:33,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 19:29:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2022-12-14 19:29:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-12-14 19:29:33,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 19:29:33,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 19:29:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2022-12-14 19:29:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-12-14 19:29:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 19:29:33,724 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 19:29:33,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2022-12-14 19:29:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2022-12-14 19:29:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 19:29:33,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:29:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2022-12-14 19:29:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-12-14 19:29:33,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 19:29:33,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:33,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:29:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-12-14 19:29:33,999 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-12-14 19:29:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 19:29:33,999 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 19:29:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 39 states and 54 transitions. [2022-12-14 19:29:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2022-12-14 19:29:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 19:29:34,464 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:34,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 19:29:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 55 transitions. [2022-12-14 19:29:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2022-12-14 19:29:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 19:29:34,636 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:34,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:34,673 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-14 19:29:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 49 states and 69 transitions. [2022-12-14 19:29:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 69 transitions. [2022-12-14 19:29:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 19:29:35,252 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:35,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-14 19:29:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 51 states and 70 transitions. [2022-12-14 19:29:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-12-14 19:29:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 19:29:35,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:35,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-14 19:29:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:35,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 53 states and 71 transitions. [2022-12-14 19:29:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2022-12-14 19:29:35,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 19:29:35,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:35,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-14 19:29:35,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2022-12-14 19:29:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-12-14 19:29:35,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 19:29:35,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:35,799 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 19:29:36,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2022-12-14 19:29:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2022-12-14 19:29:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 19:29:36,584 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:29:36,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:29:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:29:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 19:29:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:29:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2022-12-14 19:29:36,748 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-12-14 19:29:36,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 19:29:36,749 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 22 iterations. [2022-12-14 19:29:36,754 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 19:29:36,952 INFO L560 CodeCheckObserver]: Invariant with dag size 16 [2022-12-14 19:29:36,960 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2022-12-14 19:29:36,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:29:36 ImpRootNode [2022-12-14 19:29:36,960 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:29:36,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:29:36,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:29:36,961 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:29:36,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:29:32" (3/4) ... [2022-12-14 19:29:36,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 19:29:36,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 19:29:36,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 19:29:36,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 19:29:36,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:29:36,992 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:29:36,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:29:36,993 INFO L158 Benchmark]: Toolchain (without parser) took 4929.46ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 109.5MB in the beginning and 58.1MB in the end (delta: 51.4MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,993 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:29:36,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.86ms. Allocated memory is still 134.2MB. Free memory was 109.2MB in the beginning and 99.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.34ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 98.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:29:36,994 INFO L158 Benchmark]: Boogie Preprocessor took 13.03ms. Allocated memory is still 134.2MB. Free memory was 98.1MB in the beginning and 97.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,994 INFO L158 Benchmark]: RCFGBuilder took 191.09ms. Allocated memory is still 134.2MB. Free memory was 97.0MB in the beginning and 86.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,994 INFO L158 Benchmark]: CodeCheck took 4514.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 86.8MB in the beginning and 60.2MB in the end (delta: 26.6MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,995 INFO L158 Benchmark]: Witness Printer took 31.33ms. Allocated memory is still 161.5MB. Free memory was 60.2MB in the beginning and 58.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:29:36,996 INFO L339 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 22, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1137 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 851 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 830 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3301 IncrementalHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 830 mSolverCounterUnsat, 100 mSDtfsCounter, 3301 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2567 GetRequests, 2402 SyntacticMatches, 1 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13188 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 301 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 15 PerfectInterpolantSequences, 445/496 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 21]: Loop Invariant Derived loop invariant: ((a <= 5 && 1 <= a) && 0 <= b + 2147483648) || ((0 <= a + 2147483648 && 0 <= b + 2147483648) && !(1 <= a)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 <= a + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.86ms. Allocated memory is still 134.2MB. Free memory was 109.2MB in the beginning and 99.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.34ms. Allocated memory is still 134.2MB. Free memory was 99.4MB in the beginning and 98.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.03ms. Allocated memory is still 134.2MB. Free memory was 98.1MB in the beginning and 97.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 191.09ms. Allocated memory is still 134.2MB. Free memory was 97.0MB in the beginning and 86.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4514.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 86.8MB in the beginning and 60.2MB in the end (delta: 26.6MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 31.33ms. Allocated memory is still 161.5MB. Free memory was 60.2MB in the beginning and 58.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 19:29:37,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3817af-7c5b-450f-bf03-35d615ca0c29/bin/ukojak-rkRKPMF4O4/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