./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/cll_traverse-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/cll_traverse-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur --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 e315cf3165b5c80f73630ff082828d53fc68117bd863ad55d6a1d7f1b3bce898 --- 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-38b53e6 [2022-11-25 23:55:09,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:55:09,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:55:09,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:55:09,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:55:09,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:55:09,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:55:09,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:55:09,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:55:09,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:55:09,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:55:09,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:55:09,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:55:09,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:55:09,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:55:09,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:55:09,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:55:09,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:55:09,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:55:09,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:55:09,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:55:09,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:55:09,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:55:09,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:55:09,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:55:09,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:55:09,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:55:09,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:55:09,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:55:09,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:55:09,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:55:09,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:55:09,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:55:09,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:55:09,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:55:09,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:55:09,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:55:09,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:55:09,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:55:09,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:55:09,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:55:09,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:55:10,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:55:10,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:55:10,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:55:10,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:55:10,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:55:10,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:55:10,022 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:55:10,022 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:55:10,022 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:55:10,022 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:55:10,023 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:55:10,023 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:55:10,023 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:55:10,023 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:55:10,024 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:55:10,024 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:55:10,024 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:55:10,024 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:55:10,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:55:10,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:55:10,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:55:10,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:55:10,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:55:10,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:55:10,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:55:10,029 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:55:10,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:55:10,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:55:10,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:55:10,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:55:10,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:55:10,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:55:10,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:55:10,031 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:55:10,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:55:10,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:55:10,033 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:55:10,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:55:10,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:55:10,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:55:10,034 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_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e315cf3165b5c80f73630ff082828d53fc68117bd863ad55d6a1d7f1b3bce898 [2022-11-25 23:55:10,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:55:10,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:55:10,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:55:10,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:55:10,404 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:55:10,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/termination-memory-linkedlists/cll_traverse-alloca.i [2022-11-25 23:55:13,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:55:13,859 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:55:13,860 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/sv-benchmarks/c/termination-memory-linkedlists/cll_traverse-alloca.i [2022-11-25 23:55:13,872 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/data/83925260f/7fd1f75ded2c4226a90a481090e06462/FLAGe8020df76 [2022-11-25 23:55:13,888 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/data/83925260f/7fd1f75ded2c4226a90a481090e06462 [2022-11-25 23:55:13,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:55:13,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:55:13,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:55:13,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:55:13,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:55:13,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:55:13" (1/1) ... [2022-11-25 23:55:13,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548dfd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:13, skipping insertion in model container [2022-11-25 23:55:13,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:55:13" (1/1) ... [2022-11-25 23:55:13,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:55:13,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:55:14,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:55:14,252 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:55:14,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:55:14,318 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:55:14,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14 WrapperNode [2022-11-25 23:55:14,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:55:14,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:55:14,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:55:14,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:55:14,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,362 INFO L138 Inliner]: procedures = 114, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2022-11-25 23:55:14,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:55:14,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:55:14,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:55:14,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:55:14,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:55:14,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:55:14,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:55:14,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:55:14,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:55:14,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:55:14,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:55:14,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:55:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:55:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:55:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:55:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:55:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:55:14,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:55:14,560 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:55:14,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:55:14,768 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:55:14,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:55:14,836 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:55:14,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:55:14 BoogieIcfgContainer [2022-11-25 23:55:14,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:55:14,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:55:14,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:55:14,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:55:14,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:55:13" (1/3) ... [2022-11-25 23:55:14,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14de926c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:55:14, skipping insertion in model container [2022-11-25 23:55:14,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14" (2/3) ... [2022-11-25 23:55:14,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14de926c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:55:14, skipping insertion in model container [2022-11-25 23:55:14,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:55:14" (3/3) ... [2022-11-25 23:55:14,850 INFO L112 eAbstractionObserver]: Analyzing ICFG cll_traverse-alloca.i [2022-11-25 23:55:14,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:55:14,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:55:14,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:55:14,943 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;@39ee9185, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:55:14,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:55:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-11-25 23:55:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:55:14,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:14,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:55:14,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:55:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:14,957 INFO L85 PathProgramCache]: Analyzing trace with hash 71375, now seen corresponding path program 1 times [2022-11-25 23:55:14,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:14,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029009547] [2022-11-25 23:55:14,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:14,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:15,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:15,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029009547] [2022-11-25 23:55:15,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029009547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:15,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:15,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:55:15,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59380848] [2022-11-25 23:55:15,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:15,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:55:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:15,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:55:15,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:55:15,349 INFO L87 Difference]: Start difference. First operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 7 states have internal predecessors, (9), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2022-11-25 23:55:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:15,415 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2022-11-25 23:55:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:55:15,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 [2022-11-25 23:55:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:15,425 INFO L225 Difference]: With dead ends: 8 [2022-11-25 23:55:15,425 INFO L226 Difference]: Without dead ends: 5 [2022-11-25 23:55:15,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:15,431 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:15,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:55:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2022-11-25 23:55:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2022-11-25 23:55:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-25 23:55:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2022-11-25 23:55:15,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2022-11-25 23:55:15,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:15,460 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2022-11-25 23:55:15,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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) [2022-11-25 23:55:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2022-11-25 23:55:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:55:15,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:15,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:55:15,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:55:15,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:55:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2212671, now seen corresponding path program 1 times [2022-11-25 23:55:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:15,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003119388] [2022-11-25 23:55:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:15,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:15,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003119388] [2022-11-25 23:55:15,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003119388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:15,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:15,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:55:15,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737512801] [2022-11-25 23:55:15,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:15,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:55:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:15,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:55:15,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:55:15,565 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-25 23:55:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:15,592 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-11-25 23:55:15,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:55:15,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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 [2022-11-25 23:55:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:15,594 INFO L225 Difference]: With dead ends: 9 [2022-11-25 23:55:15,594 INFO L226 Difference]: Without dead ends: 8 [2022-11-25 23:55:15,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:15,595 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:15,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:55:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-25 23:55:15,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-25 23:55:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-25 23:55:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-25 23:55:15,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2022-11-25 23:55:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:15,600 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-25 23:55:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 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) [2022-11-25 23:55:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-25 23:55:15,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:55:15,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:15,601 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-25 23:55:15,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:55:15,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:55:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1493240040, now seen corresponding path program 1 times [2022-11-25 23:55:15,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:15,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467344120] [2022-11-25 23:55:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:15,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:15,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:15,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467344120] [2022-11-25 23:55:15,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467344120] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:55:15,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169068170] [2022-11-25 23:55:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:15,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:55:15,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:55:15,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:55:15,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:55:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:15,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:55:15,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:55:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:15,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:55:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:55:16,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169068170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:55:16,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [942974536] [2022-11-25 23:55:16,088 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-25 23:55:16,088 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:55:16,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:55:16,098 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:55:16,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:55:16,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:16,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:55:16,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-25 23:55:16,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:55:16,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-25 23:55:16,310 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:55:16,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:55:16,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-25 23:55:16,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,378 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:55:16,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2022-11-25 23:55:16,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-25 23:55:16,444 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:55:16,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-25 23:55:16,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 167 [2022-11-25 23:55:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 167 [2022-11-25 23:55:16,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:16,688 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:55:16,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 177 treesize of output 180 [2022-11-25 23:55:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:16,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:16,821 INFO L321 Elim1Store]: treesize reduction 113, result has 25.7 percent of original size [2022-11-25 23:55:16,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 193 [2022-11-25 23:55:16,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:55:16,907 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:55:16,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 172 [2022-11-25 23:55:17,035 INFO L321 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2022-11-25 23:55:17,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 163 treesize of output 180 [2022-11-25 23:55:17,130 INFO L321 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-25 23:55:17,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 156 treesize of output 168 [2022-11-25 23:55:17,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:17,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:17,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 7 [2022-11-25 23:55:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:17,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-25 23:55:17,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:17,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-25 23:55:17,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:55:18,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:55:18,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:18,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 7 [2022-11-25 23:55:18,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:18,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-25 23:55:18,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:55:18,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-25 23:55:18,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:55:18,185 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:55:18,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [942974536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:18,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:55:18,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 11 [2022-11-25 23:55:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038286537] [2022-11-25 23:55:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:18,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:55:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:18,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:55:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:55:18,653 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-25 23:55:18,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:18,677 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-11-25 23:55:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:55:18,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 7 [2022-11-25 23:55:18,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:18,678 INFO L225 Difference]: With dead ends: 8 [2022-11-25 23:55:18,678 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:55:18,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:55:18,680 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:18,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:55:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:55:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:55:18,682 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) [2022-11-25 23:55:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:55:18,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-25 23:55:18,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:18,682 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:55:18,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-25 23:55:18,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:55:18,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:55:18,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:55:18,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:55:18,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:55:18,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:55:18,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:55:18,997 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-25 23:55:18,997 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:55:18,998 INFO L895 garLoopResultBuilder]: At program point L564-2(lines 564 566) the Hoare annotation is: (<= 1 |ULTIMATE.start_init_cll_~i~0#1|) [2022-11-25 23:55:18,998 INFO L899 garLoopResultBuilder]: For program point L552-3(line 552) no Hoare annotation was computed. [2022-11-25 23:55:18,998 INFO L899 garLoopResultBuilder]: For program point L552-4(line 552) no Hoare annotation was computed. [2022-11-25 23:55:18,998 INFO L895 garLoopResultBuilder]: At program point L552-5(lines 552 557) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_init_cll_~n#1| 2147483648)) (<= 0 |ULTIMATE.start_init_cll_~curr~0#1.offset|) (<= 0 |ULTIMATE.start_init_cll_~head~0#1.offset|) (<= 1 |ULTIMATE.start_init_cll_~i~0#1|) (<= |ULTIMATE.start_init_cll_~head~0#1.offset| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_init_cll_~curr~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_init_cll_#in~n#1| 2147483648)) (<= |ULTIMATE.start_init_cll_~n#1| 2147483647) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_cll_#in~n#1| 2147483647) (= |#NULL.base| 0) (<= 0 (+ |ULTIMATE.start_main_~n~0#1| 2147483648))) [2022-11-25 23:55:18,999 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 552) no Hoare annotation was computed. [2022-11-25 23:55:18,999 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:55:19,002 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:55:19,004 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:55:19,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:55:19 BoogieIcfgContainer [2022-11-25 23:55:19,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:55:19,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:55:19,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:55:19,040 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:55:19,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:55:14" (3/4) ... [2022-11-25 23:55:19,044 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:55:19,054 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 23:55:19,055 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 23:55:19,055 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 23:55:19,055 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:55:19,084 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((n <= 2147483647 && 0 <= n + 2147483648) && 0 <= curr) && 0 <= head) && 1 <= i) && head <= 0) && #NULL == 0) && curr <= 0) && 0 <= \old(n) + 2147483648) && n <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && \old(n) <= 2147483647) && #NULL == 0) && 0 <= n + 2147483648 [2022-11-25 23:55:19,097 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:55:19,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:55:19,099 INFO L158 Benchmark]: Toolchain (without parser) took 5206.37ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 149.8MB in the beginning and 184.8MB in the end (delta: -35.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,099 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:55:19,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.95ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 133.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.79ms. Allocated memory is still 182.5MB. Free memory was 133.7MB in the beginning and 132.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:55:19,102 INFO L158 Benchmark]: Boogie Preprocessor took 25.76ms. Allocated memory is still 182.5MB. Free memory was 132.2MB in the beginning and 130.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,102 INFO L158 Benchmark]: RCFGBuilder took 450.69ms. Allocated memory is still 182.5MB. Free memory was 130.4MB in the beginning and 116.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,103 INFO L158 Benchmark]: TraceAbstraction took 4195.55ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 115.8MB in the beginning and 188.0MB in the end (delta: -72.2MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,104 INFO L158 Benchmark]: Witness Printer took 58.08ms. Allocated memory is still 220.2MB. Free memory was 188.0MB in the beginning and 184.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:55:19,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.95ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 133.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.79ms. Allocated memory is still 182.5MB. Free memory was 133.7MB in the beginning and 132.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.76ms. Allocated memory is still 182.5MB. Free memory was 132.2MB in the beginning and 130.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.69ms. Allocated memory is still 182.5MB. Free memory was 130.4MB in the beginning and 116.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4195.55ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 115.8MB in the beginning and 188.0MB in the end (delta: -72.2MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. * Witness Printer took 58.08ms. Allocated memory is still 220.2MB. Free memory was 188.0MB in the beginning and 184.8MB in the end (delta: 3.1MB). 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: 552]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 552]: 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, 8 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 52 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 2 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/9 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: OVERALL_TIME: 2.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 4, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 2.0s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME: 2.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 26, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 1.8s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.8s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 29, DAG_COMPRESSION_RETAINED_NODES: 18, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: ((((((((((((n <= 2147483647 && 0 <= n + 2147483648) && 0 <= curr) && 0 <= head) && 1 <= i) && head <= 0) && #NULL == 0) && curr <= 0) && 0 <= \old(n) + 2147483648) && n <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && \old(n) <= 2147483647) && #NULL == 0) && 0 <= n + 2147483648 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 <= i RESULT: Ultimate proved your program to be correct! [2022-11-25 23:55:19,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c419fd07-903a-42fb-987a-6661f74a9eb5/bin/utaipan-ByfvJB40ur/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