./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrstr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrstr-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 383b4a741115f7461f3219e8b6813a438e778f299f3d0f3c72277e19fd6c8f24 --- 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-b5237d8 [2022-11-22 00:26:25,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:26:25,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:26:25,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:26:25,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:26:25,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:26:25,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:26:25,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:26:25,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:26:25,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:26:25,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:26:25,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:26:25,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:26:25,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:26:25,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:26:25,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:26:25,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:26:25,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:26:25,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:26:25,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:26:25,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:26:25,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:26:25,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:26:25,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:26:25,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:26:25,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:26:25,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:26:25,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:26:25,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:26:25,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:26:25,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:26:25,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:26:25,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:26:25,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:26:25,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:26:25,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:26:25,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:26:25,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:26:25,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:26:25,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:26:25,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:26:25,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 00:26:25,940 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:26:25,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:26:25,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:26:25,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:26:25,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:26:25,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:26:25,943 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:26:25,944 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:26:25,944 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:26:25,944 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:26:25,945 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:26:25,945 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:26:25,945 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:26:25,946 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:26:25,946 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:26:25,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:26:25,947 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:26:25,947 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:26:25,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:26:25,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:26:25,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:26:25,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:26:25,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:26:25,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:26:25,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:26:25,950 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:26:25,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:26:25,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:26:25,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:26:25,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:26:25,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:26:25,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:26:25,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:26:25,953 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:26:25,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:26:25,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:26:25,954 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:26:25,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:26:25,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:26:25,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:26:25,955 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_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 383b4a741115f7461f3219e8b6813a438e778f299f3d0f3c72277e19fd6c8f24 [2022-11-22 00:26:26,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:26:26,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:26:26,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:26:26,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:26:26,255 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:26:26,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrstr-alloca-1.i [2022-11-22 00:26:29,343 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:26:29,649 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:26:29,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrstr-alloca-1.i [2022-11-22 00:26:29,672 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/data/7e3294804/ba43703de7954e888a9a70d3360a867f/FLAG77e976ce0 [2022-11-22 00:26:29,694 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/data/7e3294804/ba43703de7954e888a9a70d3360a867f [2022-11-22 00:26:29,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:26:29,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:26:29,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:26:29,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:26:29,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:26:29,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:26:29" (1/1) ... [2022-11-22 00:26:29,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621e6f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:29, skipping insertion in model container [2022-11-22 00:26:29,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:26:29" (1/1) ... [2022-11-22 00:26:29,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:26:29,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:26:30,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:26:30,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:26:30,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:26:30,289 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:26:30,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30 WrapperNode [2022-11-22 00:26:30,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:26:30,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:26:30,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:26:30,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:26:30,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,348 INFO L138 Inliner]: procedures = 113, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-11-22 00:26:30,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:26:30,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:26:30,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:26:30,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:26:30,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,376 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:26:30,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:26:30,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:26:30,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:26:30,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (1/1) ... [2022-11-22 00:26:30,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:26:30,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:26:30,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:26:30,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:26:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:26:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:26:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:26:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:26:30,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:26:30,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:26:30,625 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:26:30,628 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:26:30,915 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:26:31,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:26:31,034 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:26:31,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:26:31 BoogieIcfgContainer [2022-11-22 00:26:31,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:26:31,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:26:31,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:26:31,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:26:31,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:26:29" (1/3) ... [2022-11-22 00:26:31,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd49b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:26:31, skipping insertion in model container [2022-11-22 00:26:31,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:26:30" (2/3) ... [2022-11-22 00:26:31,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd49b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:26:31, skipping insertion in model container [2022-11-22 00:26:31,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:26:31" (3/3) ... [2022-11-22 00:26:31,047 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca-1.i [2022-11-22 00:26:31,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:26:31,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 00:26:31,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:26:31,125 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58e9b17f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:26:31,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 00:26:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 00:26:31,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:31,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 00:26:31,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:26:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash 5007, now seen corresponding path program 1 times [2022-11-22 00:26:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:31,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664609408] [2022-11-22 00:26:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:31,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:26:31,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:31,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664609408] [2022-11-22 00:26:31,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664609408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:31,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:31,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:26:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703670710] [2022-11-22 00:26:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:31,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:31,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:31,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:31,602 INFO L87 Difference]: Start difference. First operand has 34 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 33 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:31,675 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2022-11-22 00:26:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:26:31,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 00:26:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:31,687 INFO L225 Difference]: With dead ends: 54 [2022-11-22 00:26:31,688 INFO L226 Difference]: Without dead ends: 8 [2022-11-22 00:26:31,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:31,696 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:31,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 31 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:26:31,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-22 00:26:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-22 00:26:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 5 states have (on average 1.4) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-11-22 00:26:31,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 2 [2022-11-22 00:26:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:31,731 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-11-22 00:26:31,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-11-22 00:26:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 00:26:31,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:31,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 00:26:31,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:26:31,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:26:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash 155266, now seen corresponding path program 1 times [2022-11-22 00:26:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:31,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427898927] [2022-11-22 00:26:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:26:31,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:31,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427898927] [2022-11-22 00:26:31,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427898927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:31,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:31,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:26:31,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659392263] [2022-11-22 00:26:31,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:31,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:31,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:31,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:31,892 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:31,904 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-22 00:26:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:26:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 00:26:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:31,906 INFO L225 Difference]: With dead ends: 8 [2022-11-22 00:26:31,906 INFO L226 Difference]: Without dead ends: 7 [2022-11-22 00:26:31,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:31,908 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:31,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:26:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-22 00:26:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-22 00:26:31,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-22 00:26:31,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 3 [2022-11-22 00:26:31,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:31,918 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-22 00:26:31,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-22 00:26:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:26:31,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:31,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:26:31,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:26:31,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:26:31,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash 4813297, now seen corresponding path program 1 times [2022-11-22 00:26:31,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:31,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604735311] [2022-11-22 00:26:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:31,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:26:32,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:32,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604735311] [2022-11-22 00:26:32,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604735311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:32,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:32,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:26:32,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111865814] [2022-11-22 00:26:32,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:32,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:32,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:32,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:32,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:32,007 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:32,013 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-11-22 00:26:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:26:32,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:26:32,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:32,015 INFO L225 Difference]: With dead ends: 7 [2022-11-22 00:26:32,015 INFO L226 Difference]: Without dead ends: 6 [2022-11-22 00:26:32,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:32,017 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:32,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:26:32,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-22 00:26:32,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-22 00:26:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2022-11-22 00:26:32,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2022-11-22 00:26:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:32,020 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2022-11-22 00:26:32,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-11-22 00:26:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:26:32,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:26:32,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:26:32,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:26:32,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 00:26:32,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:26:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash 149212260, now seen corresponding path program 1 times [2022-11-22 00:26:32,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:26:32,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404363536] [2022-11-22 00:26:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:26:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:26:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:26:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:26:32,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:26:32,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404363536] [2022-11-22 00:26:32,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404363536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:26:32,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:26:32,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:26:32,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259833304] [2022-11-22 00:26:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:26:32,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:26:32,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:26:32,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:26:32,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:32,085 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:26:32,091 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2022-11-22 00:26:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:26:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 00:26:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:26:32,092 INFO L225 Difference]: With dead ends: 6 [2022-11-22 00:26:32,092 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:26:32,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:26:32,094 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:26:32,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:26:32,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:26:32,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:26:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:26:32,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-22 00:26:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:26:32,096 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:26:32,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:26:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:26:32,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:26:32,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 00:26:32,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 00:26:32,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 00:26:32,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 00:26:32,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 00:26:32,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 00:26:32,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:26:32,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:26:32,122 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 597) no Hoare annotation was computed. [2022-11-22 00:26:32,122 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-11-22 00:26:32,123 INFO L899 garLoopResultBuilder]: For program point L597-1(line 597) no Hoare annotation was computed. [2022-11-22 00:26:32,123 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 596) no Hoare annotation was computed. [2022-11-22 00:26:32,123 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:26:32,123 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2022-11-22 00:26:32,123 INFO L899 garLoopResultBuilder]: For program point L573-2(lines 573 582) no Hoare annotation was computed. [2022-11-22 00:26:32,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 596) no Hoare annotation was computed. [2022-11-22 00:26:32,124 INFO L895 garLoopResultBuilder]: At program point L566(lines 555 567) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,124 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 559) no Hoare annotation was computed. [2022-11-22 00:26:32,124 INFO L895 garLoopResultBuilder]: At program point L583(lines 568 584) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,125 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 575 580) no Hoare annotation was computed. [2022-11-22 00:26:32,125 INFO L899 garLoopResultBuilder]: For program point L575-2(lines 575 580) no Hoare annotation was computed. [2022-11-22 00:26:32,125 INFO L895 garLoopResultBuilder]: At program point L575-4(lines 575 580) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,125 INFO L899 garLoopResultBuilder]: For program point L575-5(lines 575 580) no Hoare annotation was computed. [2022-11-22 00:26:32,126 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 551 552) no Hoare annotation was computed. [2022-11-22 00:26:32,126 INFO L895 garLoopResultBuilder]: At program point L551-4(lines 551 552) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,126 INFO L895 garLoopResultBuilder]: At program point L551-5(lines 551 552) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,126 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 579) no Hoare annotation was computed. [2022-11-22 00:26:32,126 INFO L895 garLoopResultBuilder]: At program point L576-2(lines 576 579) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,127 INFO L899 garLoopResultBuilder]: For program point L560-2(lines 560 565) no Hoare annotation was computed. [2022-11-22 00:26:32,127 INFO L895 garLoopResultBuilder]: At program point L560-4(lines 560 565) the Hoare annotation is: (<= |ULTIMATE.start_main_~length1~0#1| 2147483647) [2022-11-22 00:26:32,127 INFO L899 garLoopResultBuilder]: For program point L560-5(lines 560 565) no Hoare annotation was computed. [2022-11-22 00:26:32,127 INFO L899 garLoopResultBuilder]: For program point L577(lines 577 578) no Hoare annotation was computed. [2022-11-22 00:26:32,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-22 00:26:32,128 INFO L899 garLoopResultBuilder]: For program point L561(lines 561 562) no Hoare annotation was computed. [2022-11-22 00:26:32,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:26:32,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 562) no Hoare annotation was computed. [2022-11-22 00:26:32,128 INFO L899 garLoopResultBuilder]: For program point L562(line 562) no Hoare annotation was computed. [2022-11-22 00:26:32,128 INFO L899 garLoopResultBuilder]: For program point L562-1(line 562) no Hoare annotation was computed. [2022-11-22 00:26:32,129 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 597) no Hoare annotation was computed. [2022-11-22 00:26:32,129 INFO L899 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2022-11-22 00:26:32,129 INFO L899 garLoopResultBuilder]: For program point L596-1(line 596) no Hoare annotation was computed. [2022-11-22 00:26:32,129 INFO L899 garLoopResultBuilder]: For program point L563(lines 563 564) no Hoare annotation was computed. [2022-11-22 00:26:32,133 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 00:26:32,135 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:26:32,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:26:32 BoogieIcfgContainer [2022-11-22 00:26:32,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:26:32,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:26:32,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:26:32,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:26:32,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:26:31" (3/4) ... [2022-11-22 00:26:32,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:26:32,180 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-22 00:26:32,180 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:26:32,181 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 00:26:32,181 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:26:32,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:26:32,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:26:32,235 INFO L158 Benchmark]: Toolchain (without parser) took 2532.36ms. Allocated memory is still 130.0MB. Free memory was 97.7MB in the beginning and 51.4MB in the end (delta: 46.3MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,235 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:26:32,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.41ms. Allocated memory is still 130.0MB. Free memory was 97.3MB in the beginning and 80.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.84ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,236 INFO L158 Benchmark]: Boogie Preprocessor took 31.20ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 77.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:26:32,236 INFO L158 Benchmark]: RCFGBuilder took 656.93ms. Allocated memory is still 130.0MB. Free memory was 77.1MB in the beginning and 58.9MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,237 INFO L158 Benchmark]: TraceAbstraction took 1125.67ms. Allocated memory is still 130.0MB. Free memory was 58.5MB in the beginning and 54.3MB in the end (delta: 4.2MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,237 INFO L158 Benchmark]: Witness Printer took 68.07ms. Allocated memory is still 130.0MB. Free memory was 54.3MB in the beginning and 51.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:26:32,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.41ms. Allocated memory is still 130.0MB. Free memory was 97.3MB in the beginning and 80.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.84ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.20ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 77.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 656.93ms. Allocated memory is still 130.0MB. Free memory was 77.1MB in the beginning and 58.9MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1125.67ms. Allocated memory is still 130.0MB. Free memory was 58.5MB in the beginning and 54.3MB in the end (delta: 4.2MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 68.07ms. Allocated memory is still 130.0MB. Free memory was 54.3MB in the beginning and 51.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 596]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 597]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 21 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: length1 <= 2147483647 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: length1 <= 2147483647 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:26:32,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9102a651-d296-4baa-ada7-dd74d3e42868/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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