./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh --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 3768a5ec02c52965864e042833cd9026b51809a0436795e6243a8a542ef62816 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:11:08,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:11:08,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:11:08,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:11:08,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:11:08,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:11:08,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:11:08,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:11:08,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:11:08,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:11:08,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:11:08,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:11:08,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:11:08,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:11:08,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:11:08,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:11:08,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:11:08,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:11:08,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:11:08,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:11:08,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:11:08,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:11:08,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:11:08,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:11:08,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:11:08,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:11:08,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:11:08,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:11:08,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:11:08,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:11:08,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:11:08,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:11:08,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:11:08,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:11:08,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:11:08,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:11:08,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:11:08,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:11:08,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:11:08,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:11:08,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:11:08,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 08:11:08,827 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:11:08,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:11:08,828 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:11:08,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:11:08,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:11:08,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:11:08,835 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:11:08,835 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:11:08,835 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:11:08,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:11:08,836 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:11:08,836 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:11:08,836 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:11:08,836 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:11:08,836 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:11:08,837 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:11:08,837 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:11:08,837 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:11:08,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:11:08,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:11:08,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:11:08,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:11:08,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:11:08,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:11:08,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:11:08,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:11:08,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:11:08,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:11:08,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:11:08,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:11:08,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:11:08,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:11:08,840 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_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3768a5ec02c52965864e042833cd9026b51809a0436795e6243a8a542ef62816 [2022-12-14 08:11:09,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:11:09,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:11:09,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:11:09,066 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:11:09,067 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:11:09,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2022-12-14 08:11:11,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:11:11,825 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:11:11,826 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2022-12-14 08:11:11,833 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/data/fee2e5eb9/2e727da850a04ec8981b359627bed030/FLAG6441ca8e6 [2022-12-14 08:11:11,847 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/data/fee2e5eb9/2e727da850a04ec8981b359627bed030 [2022-12-14 08:11:11,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:11:11,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:11:11,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:11:11,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:11:11,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:11:11,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:11:11" (1/1) ... [2022-12-14 08:11:11,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4321d489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:11, skipping insertion in model container [2022-12-14 08:11:11,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:11:11" (1/1) ... [2022-12-14 08:11:11,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:11:11,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:11:12,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:11:12,150 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:11:12,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:11:12,204 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:11:12,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12 WrapperNode [2022-12-14 08:11:12,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:11:12,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:11:12,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:11:12,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:11:12,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,242 INFO L138 Inliner]: procedures = 112, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2022-12-14 08:11:12,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:11:12,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:11:12,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:11:12,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:11:12,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:11:12,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:11:12,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:11:12,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:11:12,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (1/1) ... [2022-12-14 08:11:12,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:11:12,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:12,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:11:12,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:11:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:11:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:11:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:11:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:11:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:11:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:11:12,410 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:11:12,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:11:12,560 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:11:12,604 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:11:12,605 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 08:11:12,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:12 BoogieIcfgContainer [2022-12-14 08:11:12,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:11:12,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:11:12,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:11:12,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:11:12,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:11:11" (1/3) ... [2022-12-14 08:11:12,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761b88d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:11:12, skipping insertion in model container [2022-12-14 08:11:12,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:11:12" (2/3) ... [2022-12-14 08:11:12,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761b88d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:11:12, skipping insertion in model container [2022-12-14 08:11:12,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:12" (3/3) ... [2022-12-14 08:11:12,613 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-2.i [2022-12-14 08:11:12,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:11:12,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-14 08:11:12,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:11:12,665 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;@2331b7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:11:12,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 08:11:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 36 states have internal predecessors, (43), 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) [2022-12-14 08:11:12,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:11:12,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:12,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:11:12,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:12,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:12,677 INFO L85 PathProgramCache]: Analyzing trace with hash 4173, now seen corresponding path program 1 times [2022-12-14 08:11:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:12,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629777348] [2022-12-14 08:11:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:12,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:12,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:12,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629777348] [2022-12-14 08:11:12,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629777348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:12,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:12,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:11:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214328668] [2022-12-14 08:11:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:12,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:12,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:12,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:12,891 INFO L87 Difference]: Start difference. First operand has 37 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 36 states have internal predecessors, (43), 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) [2022-12-14 08:11:12,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:12,924 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-12-14 08:11:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:12,927 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 [2022-12-14 08:11:12,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:12,932 INFO L225 Difference]: With dead ends: 61 [2022-12-14 08:11:12,932 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 08:11:12,934 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 [2022-12-14 08:11:12,937 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 35 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 25 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 [2022-12-14 08:11:12,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 25 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 08:11:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 08:11:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-12-14 08:11:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-12-14 08:11:12,960 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 2 [2022-12-14 08:11:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:12,960 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-12-14 08:11:12,960 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) [2022-12-14 08:11:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-12-14 08:11:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:11:12,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:12,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:11:12,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:11:12,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash 129415, now seen corresponding path program 1 times [2022-12-14 08:11:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:12,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880549614] [2022-12-14 08:11:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880549614] [2022-12-14 08:11:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880549614] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:13,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:11:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672971062] [2022-12-14 08:11:13,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:13,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:13,046 INFO L87 Difference]: Start difference. First operand 25 states and 26 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) [2022-12-14 08:11:13,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,065 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-12-14 08:11:13,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:13,065 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 [2022-12-14 08:11:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,066 INFO L225 Difference]: With dead ends: 25 [2022-12-14 08:11:13,066 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 08:11:13,066 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 [2022-12-14 08:11:13,068 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 08:11:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-14 08:11:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 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) [2022-12-14 08:11:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-12-14 08:11:13,072 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 3 [2022-12-14 08:11:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,072 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-12-14 08:11:13,072 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) [2022-12-14 08:11:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-12-14 08:11:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:11:13,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:11:13,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:11:13,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,074 INFO L85 PathProgramCache]: Analyzing trace with hash 124371751, now seen corresponding path program 1 times [2022-12-14 08:11:13,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382504749] [2022-12-14 08:11:13,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382504749] [2022-12-14 08:11:13,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382504749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:13,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:11:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570473091] [2022-12-14 08:11:13,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:11:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:11:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:11:13,153 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-12-14 08:11:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,187 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2022-12-14 08:11:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:11:13,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2022-12-14 08:11:13,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,188 INFO L225 Difference]: With dead ends: 45 [2022-12-14 08:11:13,188 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 08:11:13,189 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 [2022-12-14 08:11:13,190 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 53 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 08:11:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2022-12-14 08:11:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 27 states have internal predecessors, (30), 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) [2022-12-14 08:11:13,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2022-12-14 08:11:13,196 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2022-12-14 08:11:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,196 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2022-12-14 08:11:13,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2022-12-14 08:11:13,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2022-12-14 08:11:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:11:13,197 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:13,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:11:13,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash -739907975, now seen corresponding path program 1 times [2022-12-14 08:11:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190134793] [2022-12-14 08:11:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190134793] [2022-12-14 08:11:13,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190134793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:13,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:11:13,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278128879] [2022-12-14 08:11:13,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:13,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:13,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:13,267 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-12-14 08:11:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,283 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-12-14 08:11:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:13,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) Word has length 7 [2022-12-14 08:11:13,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,284 INFO L225 Difference]: With dead ends: 28 [2022-12-14 08:11:13,284 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 08:11:13,285 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 [2022-12-14 08:11:13,286 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 08:11:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 08:11:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 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) [2022-12-14 08:11:13,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 08:11:13,290 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 7 [2022-12-14 08:11:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,294 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 08:11:13,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-12-14 08:11:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 08:11:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:11:13,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:13,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:11:13,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1462310668, now seen corresponding path program 1 times [2022-12-14 08:11:13,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499911462] [2022-12-14 08:11:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499911462] [2022-12-14 08:11:13,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499911462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:13,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:11:13,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827657100] [2022-12-14 08:11:13,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:11:13,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:11:13,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:11:13,352 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-12-14 08:11:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,364 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-14 08:11:13,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:11:13,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Word has length 8 [2022-12-14 08:11:13,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,364 INFO L225 Difference]: With dead ends: 26 [2022-12-14 08:11:13,365 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 08:11:13,365 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 [2022-12-14 08:11:13,365 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 08:11:13,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 08:11:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2022-12-14 08:11:13,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-12-14 08:11:13,368 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2022-12-14 08:11:13,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,368 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-12-14 08:11:13,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2022-12-14 08:11:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-12-14 08:11:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:11:13,369 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:13,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:11:13,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,370 INFO L85 PathProgramCache]: Analyzing trace with hash -826242133, now seen corresponding path program 1 times [2022-12-14 08:11:13,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727426409] [2022-12-14 08:11:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727426409] [2022-12-14 08:11:13,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727426409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:11:13,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:11:13,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745180331] [2022-12-14 08:11:13,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:11:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:11:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:11:13,411 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-14 08:11:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,435 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-12-14 08:11:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:11:13,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-12-14 08:11:13,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,436 INFO L225 Difference]: With dead ends: 29 [2022-12-14 08:11:13,436 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 08:11:13,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:11:13,437 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 37 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 08:11:13,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 08:11:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 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) [2022-12-14 08:11:13,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-12-14 08:11:13,440 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2022-12-14 08:11:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,441 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-12-14 08:11:13,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-14 08:11:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-12-14 08:11:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:11:13,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-14 08:11:13,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:11:13,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 961835802, now seen corresponding path program 1 times [2022-12-14 08:11:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213393594] [2022-12-14 08:11:13,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:13,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213393594] [2022-12-14 08:11:13,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213393594] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:13,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701565436] [2022-12-14 08:11:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:13,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:13,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:11:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:13,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:11:13,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:13,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:13,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:11:13,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701565436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:13,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:11:13,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 08:11:13,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146664658] [2022-12-14 08:11:13,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:13,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:11:13,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:11:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:11:13,604 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-12-14 08:11:13,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:13,642 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-12-14 08:11:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:11:13,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2022-12-14 08:11:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:13,643 INFO L225 Difference]: With dead ends: 41 [2022-12-14 08:11:13,643 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 08:11:13,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 08:11:13,644 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:13,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 50 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:13,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 08:11:13,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 26. [2022-12-14 08:11:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 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) [2022-12-14 08:11:13,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 08:11:13,649 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10 [2022-12-14 08:11:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:13,649 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 08:11:13,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-12-14 08:11:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 08:11:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:11:13,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:13,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-12-14 08:11:13,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:11:13,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:13,851 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:13,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash -247861147, now seen corresponding path program 1 times [2022-12-14 08:11:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:13,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262570427] [2022-12-14 08:11:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:13,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:14,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:14,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262570427] [2022-12-14 08:11:14,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262570427] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:14,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674977225] [2022-12-14 08:11:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:14,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:14,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:14,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:14,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:11:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:14,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:11:14,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:14,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:11:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:14,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674977225] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:11:14,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [660129585] [2022-12-14 08:11:14,143 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 08:11:14,144 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:11:14,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:11:14,152 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:11:14,152 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:11:14,271 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 08:11:14,272 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 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 08:11:14,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 15 [2022-12-14 08:11:14,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:14,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:14,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:14,568 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:11:14,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [660129585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:14,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:11:14,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 13 [2022-12-14 08:11:14,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203705827] [2022-12-14 08:11:14,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:14,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:11:14,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:14,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:11:14,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-12-14 08:11:14,877 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-12-14 08:11:14,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:14,911 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-14 08:11:14,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:11:14,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) Word has length 11 [2022-12-14 08:11:14,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:14,912 INFO L225 Difference]: With dead ends: 26 [2022-12-14 08:11:14,912 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 08:11:14,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-12-14 08:11:14,913 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:14,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 08:11:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2022-12-14 08:11:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 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) [2022-12-14 08:11:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-12-14 08:11:14,918 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 11 [2022-12-14 08:11:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:14,918 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-12-14 08:11:14,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-12-14 08:11:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-12-14 08:11:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 08:11:14,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:14,919 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:14,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:11:15,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:15,120 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1012505562, now seen corresponding path program 1 times [2022-12-14 08:11:15,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658099050] [2022-12-14 08:11:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:15,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:15,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:15,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658099050] [2022-12-14 08:11:15,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658099050] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:15,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730510649] [2022-12-14 08:11:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:15,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:15,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:15,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:11:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:15,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:11:15,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:15,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:15,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:11:15,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730510649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:15,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:11:15,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 08:11:15,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146656245] [2022-12-14 08:11:15,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:15,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:11:15,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:11:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:11:15,245 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-12-14 08:11:15,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:15,273 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-12-14 08:11:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:11:15,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-12-14 08:11:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:15,274 INFO L225 Difference]: With dead ends: 20 [2022-12-14 08:11:15,274 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 08:11:15,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 08:11:15,275 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:15,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:15,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 08:11:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 08:11:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-12-14 08:11:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-12-14 08:11:15,278 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2022-12-14 08:11:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:15,278 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-12-14 08:11:15,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-12-14 08:11:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-12-14 08:11:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 08:11:15,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:15,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:15,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:11:15,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:15,479 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:15,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:15,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1322901262, now seen corresponding path program 1 times [2022-12-14 08:11:15,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:15,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414615955] [2022-12-14 08:11:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:15,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:15,595 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:15,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:15,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414615955] [2022-12-14 08:11:15,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414615955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:15,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729513156] [2022-12-14 08:11:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:15,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:15,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:15,598 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:15,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:11:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:15,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:11:15,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:15,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:11:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:11:15,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729513156] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:11:15,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2086246579] [2022-12-14 08:11:15,711 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 08:11:15,711 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:11:15,712 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:11:15,712 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:11:15,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:11:15,744 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:11:15,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 13 treesize of output 19 [2022-12-14 08:11:15,777 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 08:11:15,777 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 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 08:11:15,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 08:11:15,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:11:15,871 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 0 case distinctions, treesize of input 24 treesize of output 23 [2022-12-14 08:11:15,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:15,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:15,959 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:11:16,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2086246579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:16,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:11:16,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5] total 16 [2022-12-14 08:11:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277081723] [2022-12-14 08:11:16,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:16,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:11:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:16,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:11:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-12-14 08:11:16,459 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-12-14 08:11:16,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:16,872 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-12-14 08:11:16,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:11:16,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 16 [2022-12-14 08:11:16,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:16,872 INFO L225 Difference]: With dead ends: 37 [2022-12-14 08:11:16,873 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 08:11:16,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-12-14 08:11:16,873 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:16,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:11:16,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 08:11:16,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-12-14 08:11:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-12-14 08:11:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-12-14 08:11:16,876 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2022-12-14 08:11:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:16,876 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-12-14 08:11:16,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2022-12-14 08:11:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-12-14 08:11:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 08:11:16,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:11:16,877 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:16,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 08:11:17,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 08:11:17,078 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 08:11:17,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:11:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -962065633, now seen corresponding path program 1 times [2022-12-14 08:11:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:11:17,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063014345] [2022-12-14 08:11:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:11:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:17,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:11:17,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:11:17,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063014345] [2022-12-14 08:11:17,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063014345] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:11:17,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415162585] [2022-12-14 08:11:17,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:11:17,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:11:17,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:11:17,146 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:11:17,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:11:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:11:17,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:11:17,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:11:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:11:17,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:11:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:11:17,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415162585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:11:17,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013045884] [2022-12-14 08:11:17,255 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-12-14 08:11:17,255 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:11:17,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:11:17,256 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:11:17,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:11:17,292 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-12-14 08:11:17,293 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 3 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 08:11:17,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 15 [2022-12-14 08:11:17,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 08:11:17,457 INFO L321 Elim1Store]: treesize reduction 25, result has 47.9 percent of original size [2022-12-14 08:11:17,457 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 24 treesize of output 36 [2022-12-14 08:11:17,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:11:17,623 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:11:18,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1013045884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:11:18,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 08:11:18,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5, 5] total 18 [2022-12-14 08:11:18,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388392344] [2022-12-14 08:11:18,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:11:18,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 08:11:18,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:11:18,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 08:11:18,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-12-14 08:11:18,144 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2022-12-14 08:11:18,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:11:18,405 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-12-14 08:11:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:11:18,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 21 [2022-12-14 08:11:18,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:11:18,406 INFO L225 Difference]: With dead ends: 22 [2022-12-14 08:11:18,406 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 08:11:18,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-12-14 08:11:18,407 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:11:18,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:11:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 08:11:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 08:11:18,408 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) [2022-12-14 08:11:18,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 08:11:18,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-12-14 08:11:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:11:18,408 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 08:11:18,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2022-12-14 08:11:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 08:11:18,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-12-14 08:11:18,411 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-12-14 08:11:18,412 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-12-14 08:11:18,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 08:11:18,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 08:11:18,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 08:11:19,274 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-12-14 08:11:19,274 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,274 INFO L899 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,275 INFO L899 garLoopResultBuilder]: For program point L572-2(lines 572 575) no Hoare annotation was computed. [2022-12-14 08:11:19,275 INFO L899 garLoopResultBuilder]: For program point L572-5(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,275 INFO L899 garLoopResultBuilder]: For program point L572-6(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L895 garLoopResultBuilder]: At program point L572-7(lines 572 575) the Hoare annotation is: (let ((.cse7 (+ |ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse4 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse14 (<= 1 |ULTIMATE.start_main_~i~1#1|)) (.cse16 (<= |ULTIMATE.start_main_~length2~0#1| 2147483648)) (.cse18 (= |ULTIMATE.start_main_#t~malloc12#1.base| |ULTIMATE.start_main_~nondetString1~0#1.base|)) (.cse19 (not (= |ULTIMATE.start_main_#t~malloc12#1.base| |ULTIMATE.start_main_#t~malloc13#1.base|))) (.cse20 (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc13#1.base|)) (.cse21 (= (mod |ULTIMATE.start_main_~length1~0#1| 18446744073709551616) (select |#length| |ULTIMATE.start_main_#t~malloc12#1.base|))) (.cse11 (<= 0 |ULTIMATE.start_main_~nondetString2~0#1.offset|)) (.cse0 (<= |ULTIMATE.start_main_~nondetString2~0#1.offset| 0)) (.cse22 (= (select |#valid| |ULTIMATE.start_main_#t~malloc12#1.base|) 1)) (.cse23 (<= |ULTIMATE.start_main_~length1~0#1| .cse7)) (.cse24 (<= |ULTIMATE.start_main_~i~0#1| 0)) (.cse12 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse1 (<= 0 |ULTIMATE.start_main_~nondetString1~0#1.offset|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse25 (= (select |#valid| |ULTIMATE.start_main_#t~malloc13#1.base|) 1)) (.cse26 (< |#StackHeapBarrier| |ULTIMATE.start_main_#t~malloc12#1.base|)) (.cse3 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse5 (= |ULTIMATE.start_main_#t~malloc13#1.offset| 0)) (.cse6 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse8 (<= |ULTIMATE.start_main_~nondetString1~0#1.offset| 0)) (.cse27 (= (select |#valid| 0) 0)) (.cse9 (= |ULTIMATE.start_main_#t~malloc12#1.offset| 0)) (.cse10 (= |#NULL.offset| 0)) (.cse28 (= (select |#length| |ULTIMATE.start_main_#t~malloc13#1.base|) (mod |ULTIMATE.start_main_~length2~0#1| 18446744073709551616))) (.cse29 (= |ULTIMATE.start_main_~nondetString2~0#1.base| |ULTIMATE.start_main_#t~malloc13#1.base|)) (.cse15 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647)) (.cse30 (< 0 |#StackHeapBarrier|)) (.cse17 (= |#NULL.base| 0))) (or (and .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse1 (<= 0 |ULTIMATE.start_main_#t~malloc13#1.base|) .cse2 (<= 0 |ULTIMATE.start_main_~nondetString1~0#1.base|) .cse3 .cse4 .cse5 .cse6 (not (< .cse7 |ULTIMATE.start_main_~length1~0#1|)) .cse8 .cse9 .cse10 (or (and .cse11 (= (select (select |#memory_int| |ULTIMATE.start_main_~nondetString1~0#1.base|) (+ (- 1) |ULTIMATE.start_main_~nondetString1~0#1.offset| |ULTIMATE.start_main_~length1~0#1|)) 0) .cse12) (let ((.cse13 (select (select |#memory_int| |ULTIMATE.start_main_~nondetString2~0#1.base|) (+ (- 1) |ULTIMATE.start_main_~nondetString2~0#1.offset| |ULTIMATE.start_main_~i~1#1|)))) (and (<= .cse13 127) .cse11 (< |ULTIMATE.start_main_~i~1#1| |ULTIMATE.start_main_~length2~0#1|) (<= 0 (+ .cse13 128)) .cse14))) (<= 0 |#StackHeapBarrier|) .cse15 .cse16 (<= 0 |ULTIMATE.start_main_#t~malloc12#1.base|) (<= 0 |ULTIMATE.start_main_~nondetString2~0#1.base|) .cse17) (and .cse18 .cse19 .cse20 .cse21 .cse11 .cse0 .cse22 .cse23 .cse24 .cse1 .cse2 .cse25 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse26 .cse3 .cse4 .cse5 .cse6 .cse14 .cse8 .cse27 .cse9 .cse10 .cse28 .cse29 .cse15 .cse16 .cse30 .cse17) (and .cse18 .cse19 .cse20 .cse21 .cse11 .cse0 .cse22 .cse23 .cse24 .cse12 .cse1 .cse2 .cse25 .cse26 .cse3 .cse5 .cse6 .cse8 .cse27 .cse9 .cse10 .cse28 .cse29 .cse15 .cse30 .cse17)))) [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point L572-8(lines 572 575) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 576) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 553) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 571) no Hoare annotation was computed. [2022-12-14 08:11:19,276 INFO L895 garLoopResultBuilder]: At program point cstrcmp_returnLabel#1(lines 548 555) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 571) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 554) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 08:11:19,277 INFO L899 garLoopResultBuilder]: For program point L554-1(line 554) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L571(line 571) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L567-1(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L567-2(lines 567 570) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L567-5(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L567-6(line 567) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L895 garLoopResultBuilder]: At program point L567-7(lines 567 570) the Hoare annotation is: (and (let ((.cse0 (<= 0 |ULTIMATE.start_main_~nondetString2~0#1.offset|)) (.cse1 (<= |ULTIMATE.start_main_~nondetString2~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~nondetString1~0#1.offset|)) (.cse3 (<= 0 |ULTIMATE.start_main_#t~malloc13#1.base|)) (.cse4 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse5 (<= 0 |ULTIMATE.start_main_~nondetString1~0#1.base|)) (.cse6 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse7 (= |ULTIMATE.start_main_#t~malloc13#1.offset| 0)) (.cse8 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse9 (<= |ULTIMATE.start_main_~nondetString1~0#1.offset| 0)) (.cse10 (= |ULTIMATE.start_main_#t~malloc12#1.offset| 0)) (.cse11 (= |#NULL.offset| 0)) (.cse12 (<= 0 |#StackHeapBarrier|)) (.cse13 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647)) (.cse14 (<= 0 |ULTIMATE.start_main_#t~malloc12#1.base|)) (.cse15 (<= 0 |ULTIMATE.start_main_~nondetString2~0#1.base|))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) (= |#NULL.base| 0)) [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point L567-8(lines 567 570) no Hoare annotation was computed. [2022-12-14 08:11:19,278 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 576) no Hoare annotation was computed. [2022-12-14 08:11:19,279 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-12-14 08:11:19,279 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 551 553) no Hoare annotation was computed. [2022-12-14 08:11:19,279 INFO L895 garLoopResultBuilder]: At program point L551-3(lines 551 553) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2022-12-14 08:11:19,279 INFO L899 garLoopResultBuilder]: For program point L551-4(lines 551 553) no Hoare annotation was computed. [2022-12-14 08:11:19,281 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:11:19,283 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:11:19,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:11:19 BoogieIcfgContainer [2022-12-14 08:11:19,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:11:19,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:11:19,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:11:19,300 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:11:19,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:11:12" (3/4) ... [2022-12-14 08:11:19,302 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 08:11:19,308 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-14 08:11:19,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 08:11:19,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 08:11:19,309 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 08:11:19,334 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:11:19,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:11:19,334 INFO L158 Benchmark]: Toolchain (without parser) took 7483.35ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 74.6MB in the beginning and 59.7MB in the end (delta: 14.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,334 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:11:19,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.79ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 58.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.35ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,335 INFO L158 Benchmark]: Boogie Preprocessor took 24.21ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 55.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,335 INFO L158 Benchmark]: RCFGBuilder took 338.27ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 55.1MB in the beginning and 119.6MB in the end (delta: -64.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,336 INFO L158 Benchmark]: TraceAbstraction took 6690.68ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 62.8MB in the end (delta: 56.0MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,336 INFO L158 Benchmark]: Witness Printer took 34.46ms. Allocated memory is still 153.1MB. Free memory was 62.8MB in the beginning and 59.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:11:19,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.79ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 58.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.35ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.21ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 55.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.27ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 55.1MB in the beginning and 119.6MB in the end (delta: -64.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6690.68ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 62.8MB in the end (delta: 56.0MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. * Witness Printer took 34.46ms. Allocated memory is still 153.1MB. Free memory was 62.8MB in the beginning and 59.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 576]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: 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, 37 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 136 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 115 SyntacticMatches, 13 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 49, 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, 11 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 434 HoareAnnotationTreeSize, 4 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 680 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 510 SizeOfPredicates, 10 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 19 InterpolantComputations, 8 PerfectInterpolantSequences, 17/70 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: 1.0s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 31, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 81, TOOLS_POST_TIME: 0.8s, 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: 81, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 139, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 5, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 31, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, 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: 324, DAG_COMPRESSION_RETAINED_NODES: 109, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: ((((((((((((((((((0 <= nondetString2 && nondetString2 <= 0) && 1 <= i) && i <= 2147483647) && 0 <= nondetString1) && 0 <= __builtin_alloca (length2 * sizeof(char))) && 1 <= length1) && 0 <= nondetString1) && 1 <= length2) && __builtin_alloca (length2 * sizeof(char)) == 0) && length1 <= 2147483647) && nondetString1 <= 0) && __builtin_alloca (length1 * sizeof(char)) == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && length2 <= 2147483647) && 0 <= __builtin_alloca (length1 * sizeof(char))) && 0 <= nondetString2) || ((((((((((((((((i == 0 && 0 <= nondetString2) && nondetString2 <= 0) && 0 <= nondetString1) && 0 <= __builtin_alloca (length2 * sizeof(char))) && 1 <= length1) && 0 <= nondetString1) && 1 <= length2) && __builtin_alloca (length2 * sizeof(char)) == 0) && length1 <= 2147483647) && nondetString1 <= 0) && __builtin_alloca (length1 * sizeof(char)) == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && length2 <= 2147483647) && 0 <= __builtin_alloca (length1 * sizeof(char))) && 0 <= nondetString2)) && #NULL == 0 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: 1 <= length1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: (((((((((((((((((((((nondetString2 <= 0 && i <= 2147483647) && 0 <= nondetString1) && 0 <= __builtin_alloca (length2 * sizeof(char))) && 1 <= length1) && 0 <= nondetString1) && 1 <= length2) && 0 <= i) && __builtin_alloca (length2 * sizeof(char)) == 0) && length1 <= 2147483647) && !(i + 1 < length1)) && nondetString1 <= 0) && __builtin_alloca (length1 * sizeof(char)) == 0) && #NULL == 0) && (((0 <= nondetString2 && unknown-#memory_int-unknown[nondetString1][-1 + nondetString1 + length1] == 0) && i == 0) || ((((unknown-#memory_int-unknown[nondetString2][-1 + nondetString2 + i] <= 127 && 0 <= nondetString2) && i < length2) && 0 <= unknown-#memory_int-unknown[nondetString2][-1 + nondetString2 + i] + 128) && 1 <= i))) && 0 <= unknown-#StackHeapBarrier-unknown) && length2 <= 2147483647) && length2 <= 2147483648) && 0 <= __builtin_alloca (length1 * sizeof(char))) && 0 <= nondetString2) && #NULL == 0) || ((((((((((((((((((((((((((((__builtin_alloca (length1 * sizeof(char)) == nondetString1 && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length2 * sizeof(char))) && length1 % 18446744073709551616 == unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))]) && 0 <= nondetString2) && nondetString2 <= 0) && \valid[__builtin_alloca (length1 * sizeof(char))] == 1) && length1 <= i + 1) && i <= 0) && 0 <= nondetString1) && 1 <= length1) && \valid[__builtin_alloca (length2 * sizeof(char))] == 1) && i <= 2147483647) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length1 * sizeof(char))) && 1 <= length2) && 0 <= i) && __builtin_alloca (length2 * sizeof(char)) == 0) && length1 <= 2147483647) && 1 <= i) && nondetString1 <= 0) && \valid[0] == 0) && __builtin_alloca (length1 * sizeof(char)) == 0) && #NULL == 0) && unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] == length2 % 18446744073709551616) && nondetString2 == __builtin_alloca (length2 * sizeof(char))) && length2 <= 2147483647) && length2 <= 2147483648) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0)) || (((((((((((((((((((((((((__builtin_alloca (length1 * sizeof(char)) == nondetString1 && !(__builtin_alloca (length1 * sizeof(char)) == __builtin_alloca (length2 * sizeof(char)))) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length2 * sizeof(char))) && length1 % 18446744073709551616 == unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))]) && 0 <= nondetString2) && nondetString2 <= 0) && \valid[__builtin_alloca (length1 * sizeof(char))] == 1) && length1 <= i + 1) && i <= 0) && i == 0) && 0 <= nondetString1) && 1 <= length1) && \valid[__builtin_alloca (length2 * sizeof(char))] == 1) && unknown-#StackHeapBarrier-unknown < __builtin_alloca (length1 * sizeof(char))) && 1 <= length2) && __builtin_alloca (length2 * sizeof(char)) == 0) && length1 <= 2147483647) && nondetString1 <= 0) && \valid[0] == 0) && __builtin_alloca (length1 * sizeof(char)) == 0) && #NULL == 0) && unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] == length2 % 18446744073709551616) && nondetString2 == __builtin_alloca (length2 * sizeof(char))) && length2 <= 2147483647) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 <= length1 RESULT: Ultimate proved your program to be correct! [2022-12-14 08:11:19,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e815029b-c091-4ef8-88ff-8439e9a9d20e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE