./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ --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 64bit --witnessprinter.graph.data.programhash 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 --- 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-6b4ec56 [2022-11-20 16:52:37,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:52:37,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:52:37,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:52:37,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:52:37,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:52:37,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:52:37,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:52:37,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:52:37,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:52:37,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:52:37,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:52:37,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:52:37,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:52:37,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:52:37,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:52:37,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:52:37,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:52:37,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:52:37,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:52:37,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:52:37,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:52:37,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:52:37,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:52:37,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:52:37,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:52:37,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:52:37,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:52:37,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:52:37,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:52:37,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:52:37,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:52:37,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:52:37,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:52:37,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:52:37,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:52:37,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:52:37,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:52:37,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:52:37,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:52:37,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:52:37,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:52:37,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:52:37,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:52:37,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:52:37,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:52:37,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:52:37,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:52:37,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:52:37,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:52:37,985 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:52:37,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:52:37,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:52:37,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:52:37,986 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:52:37,986 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:52:37,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:52:37,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:52:37,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:52:37,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:52:37,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:52:37,987 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:52:37,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:52:37,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:52:37,988 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_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 [2022-11-20 16:52:38,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:52:38,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:52:38,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:52:38,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:52:38,325 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:52:38,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2022-11-20 16:52:41,303 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:52:41,647 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:52:41,647 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2022-11-20 16:52:41,667 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/data/4651256b4/0f70f2b3ef3544df9840e6ca7b1070a5/FLAGcb9086cb7 [2022-11-20 16:52:41,685 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/data/4651256b4/0f70f2b3ef3544df9840e6ca7b1070a5 [2022-11-20 16:52:41,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:52:41,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:52:41,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:52:41,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:52:41,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:52:41,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:41" (1/1) ... [2022-11-20 16:52:41,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f361931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:41, skipping insertion in model container [2022-11-20 16:52:41,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:41" (1/1) ... [2022-11-20 16:52:41,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:52:41,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:52:42,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:52:42,064 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:52:42,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:52:42,146 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:52:42,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42 WrapperNode [2022-11-20 16:52:42,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:52:42,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:52:42,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:52:42,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:52:42,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,236 INFO L138 Inliner]: procedures = 111, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-20 16:52:42,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:52:42,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:52:42,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:52:42,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:52:42,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:52:42,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:52:42,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:52:42,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:52:42,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:52:42,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:52:42,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:52:42,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:52:42,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:52:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:52:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:52:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:52:42,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:52:42,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:52:42,538 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:52:42,542 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:52:42,744 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:52:42,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:52:42,788 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 16:52:42,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:52:42 BoogieIcfgContainer [2022-11-20 16:52:42,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:52:42,794 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:52:42,794 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:52:42,805 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:52:42,805 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:52:42" (1/1) ... [2022-11-20 16:52:42,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:52:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:42,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2022-11-20 16:52:42,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-20 16:52:42,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 16:52:42,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:42,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-11-20 16:52:44,343 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-11-20 16:52:44,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 16:52:44,344 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2022-11-20 16:52:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2022-11-20 16:52:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 16:52:46,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:46,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:47,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 33 states and 58 transitions. [2022-11-20 16:52:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2022-11-20 16:52:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:52:47,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:49,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:49,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 38 states and 70 transitions. [2022-11-20 16:52:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2022-11-20 16:52:49,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 16:52:49,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:49,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 75 transitions. [2022-11-20 16:52:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 75 transitions. [2022-11-20 16:52:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 16:52:50,055 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:50,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:52:51,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 42 states and 84 transitions. [2022-11-20 16:52:51,087 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 84 transitions. [2022-11-20 16:52:51,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 16:52:51,089 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:52:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 86 transitions. [2022-11-20 16:52:51,831 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 86 transitions. [2022-11-20 16:52:51,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 16:52:51,832 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:52:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 49 states and 103 transitions. [2022-11-20 16:52:54,996 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 103 transitions. [2022-11-20 16:52:54,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 16:52:54,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:54,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:52:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:52:56,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 51 states and 106 transitions. [2022-11-20 16:52:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 106 transitions. [2022-11-20 16:52:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 16:52:56,272 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:52:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:52:56,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:52:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:00,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 58 states and 127 transitions. [2022-11-20 16:53:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 127 transitions. [2022-11-20 16:53:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:53:00,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:07,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:07,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 65 states and 152 transitions. [2022-11-20 16:53:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 152 transitions. [2022-11-20 16:53:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:53:07,504 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:07,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:09,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 68 states and 161 transitions. [2022-11-20 16:53:09,932 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 161 transitions. [2022-11-20 16:53:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:53:09,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 71 states and 167 transitions. [2022-11-20 16:53:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 167 transitions. [2022-11-20 16:53:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:53:13,040 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:13,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:18,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:18,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 75 states and 177 transitions. [2022-11-20 16:53:18,662 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 177 transitions. [2022-11-20 16:53:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 16:53:18,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 78 states and 187 transitions. [2022-11-20 16:53:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 187 transitions. [2022-11-20 16:53:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 16:53:21,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:22,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:53:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:26,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 82 states and 201 transitions. [2022-11-20 16:53:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 201 transitions. [2022-11-20 16:53:26,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 16:53:26,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:26,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 85 states and 207 transitions. [2022-11-20 16:53:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 207 transitions. [2022-11-20 16:53:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 16:53:29,259 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:29,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 89 states and 215 transitions. [2022-11-20 16:53:33,368 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 215 transitions. [2022-11-20 16:53:33,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 16:53:33,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:33,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 96 states and 235 transitions. [2022-11-20 16:53:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 235 transitions. [2022-11-20 16:53:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 16:53:41,537 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:53:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 98 states and 242 transitions. [2022-11-20 16:53:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 242 transitions. [2022-11-20 16:53:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 16:53:42,823 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:42,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 16:53:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 98 states and 237 transitions. [2022-11-20 16:53:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 237 transitions. [2022-11-20 16:53:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:53:44,721 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:44,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:45,343 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 16:53:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 103 states and 254 transitions. [2022-11-20 16:53:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 254 transitions. [2022-11-20 16:53:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:53:49,599 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:49,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 16:53:50,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 104 states and 254 transitions. [2022-11-20 16:53:50,684 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 254 transitions. [2022-11-20 16:53:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:53:50,685 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:50,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 16:53:51,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:53:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 105 states and 257 transitions. [2022-11-20 16:53:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 257 transitions. [2022-11-20 16:53:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:53:51,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:53:51,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:53:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:53:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:54:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:54:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 16:54:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 16:54:01,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 16:54:01,515 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 26 iterations. [2022-11-20 16:54:01,524 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 16:54:01,731 INFO L560 CodeCheckObserver]: Invariant with dag size 37 [2022-11-20 16:54:01,744 INFO L560 CodeCheckObserver]: Invariant with dag size 30 [2022-11-20 16:54:01,746 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 16:54:01,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:54:01 ImpRootNode [2022-11-20 16:54:01,746 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:54:01,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:54:01,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:54:01,747 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:54:01,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:52:42" (3/4) ... [2022-11-20 16:54:01,751 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 16:54:01,759 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 16:54:01,759 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 16:54:01,760 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 16:54:01,760 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 16:54:01,804 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 16:54:01,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:54:01,805 INFO L158 Benchmark]: Toolchain (without parser) took 80114.35ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 145.5MB in the beginning and 517.0MB in the end (delta: -371.5MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,805 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:54:01,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.26ms. Allocated memory is still 176.2MB. Free memory was 145.3MB in the beginning and 146.2MB in the end (delta: -988.5kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,806 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.76ms. Allocated memory is still 176.2MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,807 INFO L158 Benchmark]: Boogie Preprocessor took 30.90ms. Allocated memory is still 176.2MB. Free memory was 144.1MB in the beginning and 143.3MB in the end (delta: 868.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:54:01,807 INFO L158 Benchmark]: RCFGBuilder took 523.56ms. Allocated memory is still 176.2MB. Free memory was 142.9MB in the beginning and 128.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,808 INFO L158 Benchmark]: CodeCheck took 78952.86ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 128.6MB in the beginning and 520.1MB in the end (delta: -391.5MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,808 INFO L158 Benchmark]: Witness Printer took 57.41ms. Allocated memory is still 645.9MB. Free memory was 520.1MB in the beginning and 517.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:54:01,811 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 78.7s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1992 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1746 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 2117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10997 IncrementalHoareTripleChecker+Invalid, 13114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2117 mSolverCounterUnsat, 132 mSDtfsCounter, 10997 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4300 GetRequests, 3708 SyntacticMatches, 124 SemanticMatches, 468 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102242 ImplicationChecksByTransitivity, 68.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.6s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 3617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 65/174 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: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: 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: 558]: Loop Invariant Derived loop invariant: (((((((0 <= 2147483647 + unknown-#memory_int-unknown[x_ref][x_ref] && !(y_ref == x_ref)) && !(z_ref == y_ref)) && !(z_ref == x_ref)) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483648) && !(unknown-#memory_int-unknown[z_ref][z_ref] + 1 <= unknown-#memory_int-unknown[x_ref][x_ref])) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[y_ref][y_ref] + 2147483648) || ((((((!(y_ref == x_ref) && !(z_ref == y_ref)) && !(z_ref == x_ref)) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483648) && unknown-#memory_int-unknown[z_ref][z_ref] + 1 <= unknown-#memory_int-unknown[x_ref][x_ref]) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648) - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (((((z_ref == x_ref || !(z_ref == x_ref)) && !(y_ref == x_ref)) && (unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 || z_ref == x_ref)) && !(z_ref == y_ref)) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.26ms. Allocated memory is still 176.2MB. Free memory was 145.3MB in the beginning and 146.2MB in the end (delta: -988.5kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.76ms. Allocated memory is still 176.2MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.90ms. Allocated memory is still 176.2MB. Free memory was 144.1MB in the beginning and 143.3MB in the end (delta: 868.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.56ms. Allocated memory is still 176.2MB. Free memory was 142.9MB in the beginning and 128.6MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 78952.86ms. Allocated memory was 176.2MB in the beginning and 645.9MB in the end (delta: 469.8MB). Free memory was 128.6MB in the beginning and 520.1MB in the end (delta: -391.5MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. * Witness Printer took 57.41ms. Allocated memory is still 645.9MB. Free memory was 520.1MB in the beginning and 517.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 16:54:01,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bae626b-3ee9-46be-bff1-f021b10db05d/bin/ukojak-pZX7IvK2PQ/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