./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/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_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/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_ce271e68-1713-4387-a5e8-37ece3da769c/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 cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- 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 22:51:44,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 22:51:44,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 22:51:44,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 22:51:44,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 22:51:44,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 22:51:44,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 22:51:44,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 22:51:44,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 22:51:44,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 22:51:44,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 22:51:44,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 22:51:44,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 22:51:44,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 22:51:44,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 22:51:44,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 22:51:44,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 22:51:44,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 22:51:44,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 22:51:44,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 22:51:44,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 22:51:44,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 22:51:44,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 22:51:44,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 22:51:44,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 22:51:44,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 22:51:44,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 22:51:44,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 22:51:44,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 22:51:44,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 22:51:44,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 22:51:44,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 22:51:44,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 22:51:44,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 22:51:44,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 22:51:44,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 22:51:44,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 22:51:44,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 22:51:44,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 22:51:44,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 22:51:44,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 22:51:44,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 22:51:44,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 22:51:44,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 22:51:44,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 22:51:44,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 22:51:44,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 22:51:44,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 22:51:44,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 22:51:44,891 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 22:51:44,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 22:51:44,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 22:51:44,894 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 22:51:44,894 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 22:51:44,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 22:51:44,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:44,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 22:51:44,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 22:51:44,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 22:51:44,894 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 22:51:44,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 22:51:44,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 22:51:44,895 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_ce271e68-1713-4387-a5e8-37ece3da769c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2022-12-14 22:51:45,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 22:51:45,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 22:51:45,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 22:51:45,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 22:51:45,094 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 22:51:45,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-12-14 22:51:47,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 22:51:47,882 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 22:51:47,883 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-12-14 22:51:47,890 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/data/7265b8a02/aeecb6dd7b424a229c35acb7bfaff5df/FLAG5f193231a [2022-12-14 22:51:47,901 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/data/7265b8a02/aeecb6dd7b424a229c35acb7bfaff5df [2022-12-14 22:51:47,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 22:51:47,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 22:51:47,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:47,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 22:51:47,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 22:51:47,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:47" (1/1) ... [2022-12-14 22:51:47,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3690b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:47, skipping insertion in model container [2022-12-14 22:51:47,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:47" (1/1) ... [2022-12-14 22:51:47,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 22:51:47,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 22:51:48,117 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_ce271e68-1713-4387-a5e8-37ece3da769c/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-12-14 22:51:48,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:48,125 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 22:51:48,153 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_ce271e68-1713-4387-a5e8-37ece3da769c/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-12-14 22:51:48,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:48,170 INFO L208 MainTranslator]: Completed translation [2022-12-14 22:51:48,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48 WrapperNode [2022-12-14 22:51:48,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:48,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:48,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 22:51:48,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 22:51:48,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,201 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-12-14 22:51:48,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:48,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 22:51:48,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 22:51:48,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 22:51:48,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 22:51:48,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 22:51:48,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 22:51:48,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 22:51:48,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 22:51:48,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 22:51:48,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 22:51:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-14 22:51:48,276 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-14 22:51:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 22:51:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 22:51:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 22:51:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 22:51:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 22:51:48,359 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 22:51:48,361 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 22:51:48,378 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-14 22:51:48,549 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 22:51:48,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 22:51:48,606 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 22:51:48,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:48 BoogieIcfgContainer [2022-12-14 22:51:48,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 22:51:48,610 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 22:51:48,610 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 22:51:48,619 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 22:51:48,619 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:48" (1/1) ... [2022-12-14 22:51:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 22:51:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 51 states and 58 transitions. [2022-12-14 22:51:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-12-14 22:51:48,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 22:51:48,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:48,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:48,840 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 22:51:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2022-12-14 22:51:48,864 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2022-12-14 22:51:48,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 22:51:48,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:48,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:48,971 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 22:51:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2022-12-14 22:51:49,032 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-12-14 22:51:49,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 22:51:49,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:49,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:49,116 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 22:51:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:49,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2022-12-14 22:51:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-12-14 22:51:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 22:51:49,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:49,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:49,214 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 22:51:49,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 57 states and 66 transitions. [2022-12-14 22:51:49,246 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2022-12-14 22:51:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:51:49,246 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:49,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 22:51:49,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:49,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2022-12-14 22:51:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-12-14 22:51:49,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 22:51:49,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:49,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:49,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 22:51:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 55 states and 62 transitions. [2022-12-14 22:51:49,652 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-12-14 22:51:49,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 22:51:49,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2022-12-14 22:51:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-12-14 22:51:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:51:50,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2022-12-14 22:51:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-12-14 22:51:50,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 22:51:50,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2022-12-14 22:51:50,296 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-12-14 22:51:50,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 22:51:50,296 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,343 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2022-12-14 22:51:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-12-14 22:51:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 22:51:50,354 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 59 states and 70 transitions. [2022-12-14 22:51:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-12-14 22:51:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 22:51:50,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 60 states and 71 transitions. [2022-12-14 22:51:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2022-12-14 22:51:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 22:51:50,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 63 states and 77 transitions. [2022-12-14 22:51:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2022-12-14 22:51:50,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 22:51:50,818 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,879 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 62 states and 76 transitions. [2022-12-14 22:51:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2022-12-14 22:51:50,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 22:51:50,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 63 states and 78 transitions. [2022-12-14 22:51:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-12-14 22:51:51,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 22:51:51,132 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:51,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 66 states and 84 transitions. [2022-12-14 22:51:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-12-14 22:51:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 22:51:51,392 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:51,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:51,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 22:51:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:51,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 69 states and 92 transitions. [2022-12-14 22:51:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2022-12-14 22:51:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 22:51:51,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:51,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 22:51:52,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:52,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 72 states and 98 transitions. [2022-12-14 22:51:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 98 transitions. [2022-12-14 22:51:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 22:51:52,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:52,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 22:51:52,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 74 states and 99 transitions. [2022-12-14 22:51:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 99 transitions. [2022-12-14 22:51:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 22:51:52,498 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:52,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:52,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 22:51:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:52,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 100 transitions. [2022-12-14 22:51:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2022-12-14 22:51:52,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 22:51:52,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:52,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 22:51:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 77 states and 102 transitions. [2022-12-14 22:51:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2022-12-14 22:51:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 22:51:52,895 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 22:51:53,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 32 states and 36 transitions. [2022-12-14 22:51:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-12-14 22:51:53,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 22:51:53,199 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 23 iterations. [2022-12-14 22:51:53,204 INFO L754 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2022-12-14 22:51:53,269 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-12-14 22:51:53,274 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-12-14 22:51:53,274 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:53,274 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2022-12-14 22:51:53,275 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:53,275 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:53,275 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2022-12-14 22:51:53,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 10:51:53 ImpRootNode [2022-12-14 22:51:53,276 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 22:51:53,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 22:51:53,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 22:51:53,276 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 22:51:53,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:48" (3/4) ... [2022-12-14 22:51:53,279 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 22:51:53,283 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-12-14 22:51:53,288 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 22:51:53,288 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-14 22:51:53,288 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 22:51:53,289 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 22:51:53,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 22:51:53,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 22:51:53,332 INFO L158 Benchmark]: Toolchain (without parser) took 5428.33ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 76.9MB in the beginning and 92.6MB in the end (delta: -15.7MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,332 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:51:53,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.10ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 59.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.24ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,333 INFO L158 Benchmark]: Boogie Preprocessor took 19.42ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 55.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:51:53,333 INFO L158 Benchmark]: RCFGBuilder took 388.00ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 87.9MB in the end (delta: -32.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,334 INFO L158 Benchmark]: CodeCheck took 4665.70ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 87.8MB in the beginning and 95.7MB in the end (delta: -7.9MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,334 INFO L158 Benchmark]: Witness Printer took 55.13ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:53,335 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 2 procedures, 52 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 23, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1247 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 930 mSDsluCounter, 714 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 775 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2995 IncrementalHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 775 mSolverCounterUnsat, 342 mSDtfsCounter, 2995 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2505 GetRequests, 2367 SyntacticMatches, 12 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6574 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 964 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 124/130 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: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 630]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 620]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 634]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 633]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: i + 1 <= len && len == 2 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: len <= i + 1 && len == 2 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (len == 2 && len <= 1) || (2 == len && len == 2) - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: ((index <= 1 && 0 <= i) && len == 2) && i <= 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 117.4MB. Free memory is still 84.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.10ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 59.1MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.24ms. Allocated memory is still 117.4MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.42ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 55.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 388.00ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 87.9MB in the end (delta: -32.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * CodeCheck took 4665.70ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 87.8MB in the beginning and 95.7MB in the end (delta: -7.9MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 55.13ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 92.6MB 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! [2022-12-14 22:51:53,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce271e68-1713-4387-a5e8-37ece3da769c/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