./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/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_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/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_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/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 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-6b4ec56 [2022-11-20 16:38:16,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:38:16,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:38:16,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:38:16,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:38:16,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:38:16,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:38:16,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:38:16,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:38:16,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:38:16,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:38:16,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:38:16,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:38:16,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:38:16,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:38:16,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:38:16,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:38:16,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:38:16,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:38:16,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:38:16,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:38:16,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:38:16,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:38:16,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:38:16,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:38:16,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:38:16,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:38:16,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:38:16,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:38:16,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:38:16,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:38:16,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:38:16,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:38:16,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:38:16,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:38:16,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:38:16,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:38:16,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:38:16,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:38:16,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:38:16,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:38:16,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 16:38:16,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:38:16,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:38:16,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:38:16,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:38:16,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:38:16,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:38:16,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:38:16,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 16:38:16,567 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:38:16,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:38:16,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 16:38:16,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:38:16,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:38:16,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:38:16,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:38:16,569 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:38:16,569 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 16:38:16,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:38:16,569 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:38:16,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:38:16,570 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:38:16,570 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:38:16,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:38:16,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:38:16,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:38:16,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:38:16,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:38:16,572 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:38:16,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:38:16,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:38:16,573 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_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2022-11-20 16:38:16,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:38:16,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:38:16,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:38:16,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:38:16,916 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:38:16,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-11-20 16:38:20,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:38:20,292 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:38:20,294 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2022-11-20 16:38:20,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/data/a4b8751d1/95476e9df18243709eaf19f64df0d11c/FLAGcedff4289 [2022-11-20 16:38:20,321 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/data/a4b8751d1/95476e9df18243709eaf19f64df0d11c [2022-11-20 16:38:20,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:38:20,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:38:20,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:38:20,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:38:20,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:38:20,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db2a18d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20, skipping insertion in model container [2022-11-20 16:38:20,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:38:20,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:38:20,655 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_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-11-20 16:38:20,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:38:20,665 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:38:20,709 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_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2022-11-20 16:38:20,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:38:20,744 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:38:20,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20 WrapperNode [2022-11-20 16:38:20,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:38:20,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:38:20,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:38:20,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:38:20,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,816 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-20 16:38:20,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:38:20,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:38:20,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:38:20,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:38:20,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:38:20,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:38:20,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:38:20,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:38:20,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:38:20" (1/1) ... [2022-11-20 16:38:20,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:38:20,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:38:20,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:38:20,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-20 16:38:20,932 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:38:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 16:38:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 16:38:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:38:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:38:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:38:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:38:21,080 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:38:21,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:38:21,142 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-20 16:38:21,382 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:38:21,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:38:21,483 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 16:38:21,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:21 BoogieIcfgContainer [2022-11-20 16:38:21,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:38:21,488 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:38:21,488 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:38:21,500 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:38:21,500 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:21" (1/1) ... [2022-11-20 16:38:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:38:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:21,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 51 states and 58 transitions. [2022-11-20 16:38:21,600 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-11-20 16:38:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 16:38:21,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:21,844 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 16:38:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:21,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2022-11-20 16:38:21,881 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2022-11-20 16:38:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 16:38:21,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:21,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:22,174 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 16:38:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2022-11-20 16:38:22,257 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-11-20 16:38:22,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 16:38:22,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:22,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:22,371 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 16:38:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2022-11-20 16:38:22,395 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-11-20 16:38:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:38:22,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:22,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:38:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 57 states and 66 transitions. [2022-11-20 16:38:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2022-11-20 16:38:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 16:38:22,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:22,886 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 16:38:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 61 states and 71 transitions. [2022-11-20 16:38:23,121 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2022-11-20 16:38:23,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 16:38:23,123 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 16:38:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 60 states and 70 transitions. [2022-11-20 16:38:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-20 16:38:23,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 16:38:23,360 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:23,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 72 states and 87 transitions. [2022-11-20 16:38:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2022-11-20 16:38:24,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:38:24,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:24,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 73 states and 88 transitions. [2022-11-20 16:38:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2022-11-20 16:38:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 16:38:24,228 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:38:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2022-11-20 16:38:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-11-20 16:38:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 16:38:24,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:24,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:24,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2022-11-20 16:38:24,658 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-11-20 16:38:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 16:38:24,658 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:24,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 65 transitions. [2022-11-20 16:38:24,732 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2022-11-20 16:38:24,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 16:38:24,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:24,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:24,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 57 states and 67 transitions. [2022-11-20 16:38:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2022-11-20 16:38:25,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 16:38:25,043 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:25,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:25,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 58 states and 68 transitions. [2022-11-20 16:38:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2022-11-20 16:38:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 16:38:25,142 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 74 transitions. [2022-11-20 16:38:25,492 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 74 transitions. [2022-11-20 16:38:25,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 16:38:25,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:25,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 63 states and 78 transitions. [2022-11-20 16:38:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 78 transitions. [2022-11-20 16:38:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 16:38:25,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:25,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:26,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:26,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2022-11-20 16:38:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2022-11-20 16:38:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 16:38:26,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 67 states and 87 transitions. [2022-11-20 16:38:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-20 16:38:26,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 16:38:26,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:26,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 66 states and 86 transitions. [2022-11-20 16:38:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-20 16:38:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:38:27,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:27,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:27,283 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:27,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 69 states and 90 transitions. [2022-11-20 16:38:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2022-11-20 16:38:27,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:38:27,745 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:27,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:38:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 71 states and 92 transitions. [2022-11-20 16:38:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2022-11-20 16:38:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 16:38:28,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:28,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 16:38:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 72 states and 94 transitions. [2022-11-20 16:38:28,582 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2022-11-20 16:38:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 16:38:28,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:38:28,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:28,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 74 states and 95 transitions. [2022-11-20 16:38:28,871 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-11-20 16:38:28,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 16:38:28,871 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:28,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:29,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 16:38:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 49 states and 55 transitions. [2022-11-20 16:38:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2022-11-20 16:38:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 16:38:30,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:38:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:38:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:38:30,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 16:38:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:38:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 35 states and 38 transitions. [2022-11-20 16:38:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2022-11-20 16:38:30,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 16:38:30,196 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 25 iterations. [2022-11-20 16:38:30,208 INFO L754 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2022-11-20 16:38:30,397 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-11-20 16:38:30,405 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 16:38:30,405 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-11-20 16:38:30,406 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2022-11-20 16:38:30,406 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 16:38:30,406 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 16:38:30,407 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2022-11-20 16:38:30,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:38:30 ImpRootNode [2022-11-20 16:38:30,408 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:38:30,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:38:30,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:38:30,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:38:30,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:38:21" (3/4) ... [2022-11-20 16:38:30,412 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 16:38:30,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-20 16:38:30,423 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 16:38:30,423 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 16:38:30,423 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 16:38:30,424 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 16:38:30,498 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 16:38:30,501 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:38:30,502 INFO L158 Benchmark]: Toolchain (without parser) took 10176.81ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 119.4MB in the beginning and 110.3MB in the end (delta: 9.1MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,506 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:38:30,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.32ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 101.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.79ms. Allocated memory is still 165.7MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,511 INFO L158 Benchmark]: Boogie Preprocessor took 35.00ms. Allocated memory is still 165.7MB. Free memory was 99.5MB in the beginning and 97.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,511 INFO L158 Benchmark]: RCFGBuilder took 634.74ms. Allocated memory is still 165.7MB. Free memory was 97.9MB in the beginning and 76.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,512 INFO L158 Benchmark]: CodeCheck took 8919.61ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 76.9MB in the beginning and 113.5MB in the end (delta: -36.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,512 INFO L158 Benchmark]: Witness Printer took 93.01ms. Allocated memory is still 239.1MB. Free memory was 113.5MB in the beginning and 110.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:38:30,514 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: 8.7s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1375 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1037 mSDsluCounter, 716 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 368 mSDsCounter, 976 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3608 IncrementalHoareTripleChecker+Invalid, 4584 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 976 mSolverCounterUnsat, 348 mSDtfsCounter, 3608 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2788 GetRequests, 2627 SyntacticMatches, 27 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7716 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 390 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 366 ConstructedInterpolants, 0 QuantifiedInterpolants, 1163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 21 PerfectInterpolantSequences, 142/153 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: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: len <= i + 1 && len == 2 - 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 0.30ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.32ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 101.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.79ms. Allocated memory is still 165.7MB. Free memory was 101.5MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.00ms. Allocated memory is still 165.7MB. Free memory was 99.5MB in the beginning and 97.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 634.74ms. Allocated memory is still 165.7MB. Free memory was 97.9MB in the beginning and 76.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 8919.61ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 76.9MB in the beginning and 113.5MB in the end (delta: -36.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Witness Printer took 93.01ms. Allocated memory is still 239.1MB. Free memory was 113.5MB in the beginning and 110.3MB 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 16:38:30,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d9e03f4-dd65-48c2-8e87-cc583692f2dc/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