./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety/20051113-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety/20051113-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:19:27,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:19:27,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:19:27,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:19:27,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:19:27,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:19:27,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:19:27,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:19:27,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:19:27,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:19:27,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:19:27,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:19:27,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:19:27,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:19:27,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:19:27,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:19:27,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:19:27,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:19:27,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:19:27,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:19:27,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:19:27,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:19:27,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:19:27,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:19:27,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:19:27,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:19:27,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:19:27,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:19:27,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:19:27,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:19:27,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:19:27,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:19:27,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:19:27,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:19:27,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:19:27,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:19:27,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:19:27,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:19:27,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:19:27,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:19:27,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:19:27,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:19:27,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:19:27,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:19:27,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:19:27,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:19:27,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:19:27,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:19:27,888 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:19:27,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:19:27,889 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:19:27,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:19:27,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:19:27,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:19:27,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:19:27,891 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:19:27,891 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:19:27,891 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:19:27,891 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:19:27,892 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:19:27,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:19:27,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:19:27,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:19:27,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:19:27,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:19:27,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:19:27,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:19:27,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:19:27,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:19:27,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:19:27,896 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:19:27,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:19:27,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:19:27,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:19:27,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:19:27,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:19:27,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:27,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:19:27,899 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:19:27,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:19:27,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:19:27,900 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:19:27,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:19:27,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:19:27,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:19:27,901 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_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a43a02844acf962bfa6f77d0e1512c06ac1cc2fb3c3905e584a292a069b5426 [2022-11-26 00:19:28,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:19:28,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:19:28,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:19:28,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:19:28,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:19:28,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/memsafety/20051113-1.i [2022-11-26 00:19:31,459 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:19:31,739 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:19:31,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/sv-benchmarks/c/memsafety/20051113-1.i [2022-11-26 00:19:31,756 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/data/774fd0955/e39ef76a7fac4987a41b025c2b0b0bed/FLAG6df3f287d [2022-11-26 00:19:31,773 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/data/774fd0955/e39ef76a7fac4987a41b025c2b0b0bed [2022-11-26 00:19:31,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:19:31,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:19:31,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:31,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:19:31,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:19:31,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:31" (1/1) ... [2022-11-26 00:19:31,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c07838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:31, skipping insertion in model container [2022-11-26 00:19:31,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:19:31" (1/1) ... [2022-11-26 00:19:31,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:19:31,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:19:32,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:32,248 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:19:32,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:19:32,373 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:19:32,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32 WrapperNode [2022-11-26 00:19:32,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:19:32,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:32,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:19:32,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:19:32,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,437 INFO L138 Inliner]: procedures = 125, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2022-11-26 00:19:32,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:19:32,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:19:32,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:19:32,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:19:32,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,486 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:19:32,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:19:32,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:19:32,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:19:32,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (1/1) ... [2022-11-26 00:19:32,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:19:32,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:32,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:19:32,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:19:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:19:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:19:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:19:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:19:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure dummy_abort [2022-11-26 00:19:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dummy_abort [2022-11-26 00:19:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:19:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:19:32,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:19:32,734 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:19:32,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:19:33,053 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:19:33,092 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:19:33,092 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:19:33,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:33 BoogieIcfgContainer [2022-11-26 00:19:33,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:19:33,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:19:33,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:19:33,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:19:33,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:19:31" (1/3) ... [2022-11-26 00:19:33,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33afafcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:33, skipping insertion in model container [2022-11-26 00:19:33,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:19:32" (2/3) ... [2022-11-26 00:19:33,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33afafcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:19:33, skipping insertion in model container [2022-11-26 00:19:33,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:33" (3/3) ... [2022-11-26 00:19:33,105 INFO L112 eAbstractionObserver]: Analyzing ICFG 20051113-1.i [2022-11-26 00:19:33,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:19:33,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:19:33,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:19:33,206 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;@77b8c507, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:19:33,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 00:19:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:19:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:19:33,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:33,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:19:33,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:33,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:33,235 INFO L85 PathProgramCache]: Analyzing trace with hash 110571474, now seen corresponding path program 1 times [2022-11-26 00:19:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:33,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510727977] [2022-11-26 00:19:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:33,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:33,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:33,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510727977] [2022-11-26 00:19:33,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510727977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:33,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:33,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:19:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218371330] [2022-11-26 00:19:33,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:33,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:33,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:33,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:33,792 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 27 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:33,939 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2022-11-26 00:19:33,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:33,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:19:33,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:33,952 INFO L225 Difference]: With dead ends: 75 [2022-11-26 00:19:33,953 INFO L226 Difference]: Without dead ends: 42 [2022-11-26 00:19:33,957 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 [2022-11-26 00:19:33,961 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:33,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 75 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-26 00:19:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-11-26 00:19:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.5) internal successors, (30), 26 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-26 00:19:34,015 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 5 [2022-11-26 00:19:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:34,016 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-26 00:19:34,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-26 00:19:34,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:19:34,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:34,018 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-26 00:19:34,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:19:34,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:34,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2062474582, now seen corresponding path program 1 times [2022-11-26 00:19:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:34,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950584052] [2022-11-26 00:19:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:34,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:34,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950584052] [2022-11-26 00:19:34,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950584052] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:34,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735614420] [2022-11-26 00:19:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:34,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:34,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:34,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:34,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:19:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:34,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:34,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:34,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:34,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735614420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:34,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:19:34,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:19:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114096775] [2022-11-26 00:19:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:34,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:19:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:19:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:19:34,392 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:34,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:34,505 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-11-26 00:19:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:19:34,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-26 00:19:34,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:34,509 INFO L225 Difference]: With dead ends: 42 [2022-11-26 00:19:34,514 INFO L226 Difference]: Without dead ends: 41 [2022-11-26 00:19:34,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:19:34,517 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 39 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:34,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 81 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:34,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-26 00:19:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2022-11-26 00:19:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.45) internal successors, (29), 25 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-26 00:19:34,529 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2022-11-26 00:19:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:34,530 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-26 00:19:34,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-26 00:19:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:19:34,532 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:34,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:34,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:34,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:34,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:34,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1468095141, now seen corresponding path program 1 times [2022-11-26 00:19:34,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:34,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452443948] [2022-11-26 00:19:34,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:34,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:34,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452443948] [2022-11-26 00:19:34,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452443948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:34,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:34,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:19:34,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417633680] [2022-11-26 00:19:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:34,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:34,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:34,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:34,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:34,990 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 4 states have (on average 2.5) 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) [2022-11-26 00:19:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:35,046 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2022-11-26 00:19:35,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) 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 [2022-11-26 00:19:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:35,048 INFO L225 Difference]: With dead ends: 43 [2022-11-26 00:19:35,048 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:19:35,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:19:35,050 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 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 [2022-11-26 00:19:35,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:19:35,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-26 00:19:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.4) internal successors, (28), 25 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-26 00:19:35,056 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2022-11-26 00:19:35,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:35,057 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-26 00:19:35,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) 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) [2022-11-26 00:19:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-26 00:19:35,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:19:35,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:35,058 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-26 00:19:35,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:19:35,059 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:35,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash 487797454, now seen corresponding path program 1 times [2022-11-26 00:19:35,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:35,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939494917] [2022-11-26 00:19:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:35,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:35,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:35,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:35,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939494917] [2022-11-26 00:19:35,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939494917] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:35,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338961135] [2022-11-26 00:19:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:35,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:35,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:35,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:35,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:19:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:35,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:35,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:35,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:35,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:19:35,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338961135] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:35,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [943408339] [2022-11-26 00:19:35,403 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:19:35,403 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:35,407 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:35,413 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:35,413 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:35,528 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:35,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:35,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:19:35,625 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:19:35,629 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:35,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [943408339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:35,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:35,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5, 5, 5] total 13 [2022-11-26 00:19:35,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82863662] [2022-11-26 00:19:35,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:35,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:19:35,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:35,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:19:35,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:19:35,764 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) 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) [2022-11-26 00:19:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:35,826 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2022-11-26 00:19:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:19:35,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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 10 [2022-11-26 00:19:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:35,828 INFO L225 Difference]: With dead ends: 53 [2022-11-26 00:19:35,828 INFO L226 Difference]: Without dead ends: 28 [2022-11-26 00:19:35,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-26 00:19:35,830 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:35,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:35,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-26 00:19:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-26 00:19:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-26 00:19:35,836 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-11-26 00:19:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:35,837 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-26 00:19:35,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) 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) [2022-11-26 00:19:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-26 00:19:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:19:35,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:35,838 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-26 00:19:35,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:36,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:36,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash 839535025, now seen corresponding path program 1 times [2022-11-26 00:19:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:36,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306472168] [2022-11-26 00:19:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:36,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:36,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:36,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306472168] [2022-11-26 00:19:36,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306472168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:36,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017238852] [2022-11-26 00:19:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:36,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:36,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:36,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:19:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:36,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:19:36,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:36,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:36,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017238852] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:36,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2062670759] [2022-11-26 00:19:36,359 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:19:36,359 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:36,360 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:36,360 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:36,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:36,416 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:36,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:36,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:19:36,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:19:36,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:19:36,609 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-26 00:19:36,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-26 00:19:36,701 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 [2022-11-26 00:19:36,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:36,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:37,044 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:37,645 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '629#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum_#t~post6#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:19:37,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:37,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:37,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-26 00:19:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145728777] [2022-11-26 00:19:37,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:37,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:19:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:37,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:19:37,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:19:37,648 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:37,824 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2022-11-26 00:19:37,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:19:37,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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 [2022-11-26 00:19:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:37,825 INFO L225 Difference]: With dead ends: 83 [2022-11-26 00:19:37,825 INFO L226 Difference]: Without dead ends: 82 [2022-11-26 00:19:37,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-11-26 00:19:37,827 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 72 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:37,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 169 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:37,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-26 00:19:37,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 40. [2022-11-26 00:19:37,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:37,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2022-11-26 00:19:37,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 11 [2022-11-26 00:19:37,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:37,837 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2022-11-26 00:19:37,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2022-11-26 00:19:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:19:37,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:37,839 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:37,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-26 00:19:38,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:38,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:38,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:38,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1224890650, now seen corresponding path program 1 times [2022-11-26 00:19:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:38,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287348295] [2022-11-26 00:19:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:38,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:38,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:38,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287348295] [2022-11-26 00:19:38,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287348295] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:38,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103615664] [2022-11-26 00:19:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:38,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:38,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:38,285 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:38,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:19:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:38,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-26 00:19:38,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:38,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:38,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:38,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:19:38,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:38,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103615664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:38,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:19:38,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-11-26 00:19:38,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097007643] [2022-11-26 00:19:38,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:38,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:19:38,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:38,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:19:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:19:38,506 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:38,612 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-11-26 00:19:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:19:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 [2022-11-26 00:19:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:38,613 INFO L225 Difference]: With dead ends: 50 [2022-11-26 00:19:38,614 INFO L226 Difference]: Without dead ends: 49 [2022-11-26 00:19:38,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:19:38,615 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:38,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 42 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-26 00:19:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2022-11-26 00:19:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-26 00:19:38,623 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 15 [2022-11-26 00:19:38,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:38,624 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-26 00:19:38,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-26 00:19:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:19:38,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:38,625 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:38,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:38,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:38,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:38,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:38,831 INFO L85 PathProgramCache]: Analyzing trace with hash 683095597, now seen corresponding path program 1 times [2022-11-26 00:19:38,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:38,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354441150] [2022-11-26 00:19:38,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:39,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:39,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354441150] [2022-11-26 00:19:39,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354441150] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:39,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914894722] [2022-11-26 00:19:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:39,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:39,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:39,009 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:39,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:19:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:39,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-26 00:19:39,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:39,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:39,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:39,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:19:39,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:19:39,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914894722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:39,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:19:39,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-11-26 00:19:39,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255744336] [2022-11-26 00:19:39,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:39,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:19:39,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:39,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:19:39,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:19:39,258 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-26 00:19:39,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:39,356 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-26 00:19:39,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:19:39,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 16 [2022-11-26 00:19:39,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:39,358 INFO L225 Difference]: With dead ends: 45 [2022-11-26 00:19:39,358 INFO L226 Difference]: Without dead ends: 44 [2022-11-26 00:19:39,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:19:39,359 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:39,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 42 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:19:39,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-26 00:19:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-26 00:19:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 42 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-11-26 00:19:39,366 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 16 [2022-11-26 00:19:39,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:39,366 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-11-26 00:19:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2022-11-26 00:19:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-11-26 00:19:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:19:39,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:39,368 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:39,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-26 00:19:39,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-26 00:19:39,579 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:39,579 INFO L85 PathProgramCache]: Analyzing trace with hash -298871832, now seen corresponding path program 1 times [2022-11-26 00:19:39,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:39,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117500093] [2022-11-26 00:19:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:39,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:19:39,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:39,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117500093] [2022-11-26 00:19:39,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117500093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:19:39,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:19:39,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:19:39,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439045961] [2022-11-26 00:19:39,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:19:39,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:19:39,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:39,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:19:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:19:39,655 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:39,699 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-26 00:19:39,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:19:39,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2022-11-26 00:19:39,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:39,701 INFO L225 Difference]: With dead ends: 48 [2022-11-26 00:19:39,701 INFO L226 Difference]: Without dead ends: 46 [2022-11-26 00:19:39,702 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 [2022-11-26 00:19:39,703 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:39,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:19:39,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-26 00:19:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-26 00:19:39,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 44 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-26 00:19:39,726 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-11-26 00:19:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:39,727 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-26 00:19:39,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-26 00:19:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-26 00:19:39,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:39,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:39,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:19:39,730 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:39,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:39,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1662842011, now seen corresponding path program 1 times [2022-11-26 00:19:39,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:39,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826037363] [2022-11-26 00:19:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:39,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-26 00:19:39,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826037363] [2022-11-26 00:19:39,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826037363] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:39,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584368982] [2022-11-26 00:19:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:39,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:39,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:39,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:19:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:40,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-26 00:19:40,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:40,052 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 6 treesize of output 5 [2022-11-26 00:19:40,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:40,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:40,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:19:40,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584368982] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:40,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [938444517] [2022-11-26 00:19:40,549 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:19:40,550 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:40,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:40,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:40,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:40,615 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:19:40,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 00:19:40,656 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:40,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:40,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:19:40,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:19:40,802 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-26 00:19:40,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-26 00:19:40,872 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 [2022-11-26 00:19:40,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:40,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:41,786 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:46,818 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1410#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (and (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|))) (or (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|)) (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-26 00:19:46,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:46,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:46,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 25 [2022-11-26 00:19:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292476789] [2022-11-26 00:19:46,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:46,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-26 00:19:46,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-26 00:19:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1398, Unknown=0, NotChecked=0, Total=1560 [2022-11-26 00:19:46,820 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:47,528 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2022-11-26 00:19:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-26 00:19:47,530 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 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 [2022-11-26 00:19:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:47,531 INFO L225 Difference]: With dead ends: 80 [2022-11-26 00:19:47,531 INFO L226 Difference]: Without dead ends: 46 [2022-11-26 00:19:47,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=315, Invalid=2337, Unknown=0, NotChecked=0, Total=2652 [2022-11-26 00:19:47,534 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 61 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:47,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 191 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:19:47,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-26 00:19:47,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-26 00:19:47,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 44 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-11-26 00:19:47,542 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 21 [2022-11-26 00:19:47,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:47,542 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-11-26 00:19:47,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.28) internal successors, (57), 25 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-11-26 00:19:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:19:47,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:47,544 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1] [2022-11-26 00:19:47,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:47,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:47,750 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:47,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1362841001, now seen corresponding path program 2 times [2022-11-26 00:19:47,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:47,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362989063] [2022-11-26 00:19:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:19:48,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:48,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362989063] [2022-11-26 00:19:48,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362989063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:48,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045786978] [2022-11-26 00:19:48,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:19:48,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:48,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:48,013 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:48,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:19:48,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:19:48,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:48,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-26 00:19:48,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:48,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 50 [2022-11-26 00:19:48,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:19:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-26 00:19:48,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-26 00:19:48,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045786978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:48,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1233290981] [2022-11-26 00:19:48,378 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-26 00:19:48,378 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:48,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:48,379 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:48,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:48,414 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:19:48,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 00:19:48,462 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:48,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:48,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:19:48,592 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:19:48,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:19:48,642 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 [2022-11-26 00:19:48,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:48,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:48,877 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:49,683 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1757#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum_#t~post6#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (< |ULTIMATE.start_Sum_~i~0#1| (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_Sum_#t~post6#1| |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:19:49,683 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:49,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:49,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 17 [2022-11-26 00:19:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587381871] [2022-11-26 00:19:49,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:49,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:19:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:19:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:19:49,689 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:50,127 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2022-11-26 00:19:50,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:19:50,127 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 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 23 [2022-11-26 00:19:50,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:50,128 INFO L225 Difference]: With dead ends: 68 [2022-11-26 00:19:50,128 INFO L226 Difference]: Without dead ends: 39 [2022-11-26 00:19:50,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 52 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=182, Invalid=874, Unknown=0, NotChecked=0, Total=1056 [2022-11-26 00:19:50,130 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 61 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:50,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 101 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:19:50,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-26 00:19:50,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-26 00:19:50,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 37 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-26 00:19:50,136 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 23 [2022-11-26 00:19:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:50,136 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-26 00:19:50,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 17 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-26 00:19:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 00:19:50,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:50,137 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:50,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:50,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:50,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash -373173781, now seen corresponding path program 2 times [2022-11-26 00:19:50,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:50,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090638924] [2022-11-26 00:19:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-26 00:19:50,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:50,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090638924] [2022-11-26 00:19:50,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090638924] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:50,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908641812] [2022-11-26 00:19:50,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:19:50,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:50,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:50,511 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:50,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-26 00:19:50,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-26 00:19:50,621 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:19:50,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-26 00:19:50,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:50,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:51,062 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:51,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 16 [2022-11-26 00:19:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-26 00:19:51,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:51,252 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-26 00:19:51,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908641812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:51,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496713756] [2022-11-26 00:19:51,255 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:19:51,255 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:51,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:51,256 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:51,256 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:51,318 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:51,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:51,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:19:51,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:19:51,428 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:19:51,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:19:51,473 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 [2022-11-26 00:19:51,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:51,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:52,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:19:56,763 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2104#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (and (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|))) (or (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|)) (and (<= 0 |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~count~1#1|) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= |#NULL.base| 0) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#value#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-26 00:19:56,763 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:19:56,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:19:56,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 17 [2022-11-26 00:19:56,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528171726] [2022-11-26 00:19:56,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:19:56,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-26 00:19:56,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:19:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-26 00:19:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2022-11-26 00:19:56,765 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:57,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:19:57,421 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2022-11-26 00:19:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-26 00:19:57,422 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 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 29 [2022-11-26 00:19:57,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:19:57,422 INFO L225 Difference]: With dead ends: 90 [2022-11-26 00:19:57,422 INFO L226 Difference]: Without dead ends: 54 [2022-11-26 00:19:57,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=223, Invalid=1499, Unknown=0, NotChecked=0, Total=1722 [2022-11-26 00:19:57,424 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 53 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:19:57,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 74 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:19:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-26 00:19:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2022-11-26 00:19:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 47 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:19:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2022-11-26 00:19:57,431 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 29 [2022-11-26 00:19:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:19:57,431 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2022-11-26 00:19:57,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 17 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:19:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2022-11-26 00:19:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-26 00:19:57,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:19:57,432 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:19:57,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-26 00:19:57,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:57,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:19:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:19:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1834339541, now seen corresponding path program 1 times [2022-11-26 00:19:57,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:19:57,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69547981] [2022-11-26 00:19:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:19:57,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:19:57,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:19:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69547981] [2022-11-26 00:19:57,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69547981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:19:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188150224] [2022-11-26 00:19:57,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:19:57,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:19:57,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:19:57,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:19:57,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-26 00:19:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:19:57,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-26 00:19:57,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:19:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:57,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:58,242 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:19:58,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2022-11-26 00:19:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-26 00:19:58,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:19:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-26 00:19:58,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188150224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:19:58,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2090191364] [2022-11-26 00:19:58,455 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:19:58,455 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:19:58,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:19:58,456 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:19:58,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:19:58,499 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:19:58,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 00:19:58,541 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:19:58,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:19:58,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:19:58,653 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:19:58,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:19:58,697 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 [2022-11-26 00:19:58,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:19:58,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:19:59,413 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:03,418 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2514#(and (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:20:03,418 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:03,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:03,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 18 [2022-11-26 00:20:03,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590943718] [2022-11-26 00:20:03,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:03,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-26 00:20:03,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-26 00:20:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2022-11-26 00:20:03,421 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:03,976 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2022-11-26 00:20:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:20:03,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 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 31 [2022-11-26 00:20:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:03,977 INFO L225 Difference]: With dead ends: 97 [2022-11-26 00:20:03,977 INFO L226 Difference]: Without dead ends: 52 [2022-11-26 00:20:03,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=202, Invalid=1520, Unknown=0, NotChecked=0, Total=1722 [2022-11-26 00:20:03,979 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 59 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:03,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 105 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:20:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-26 00:20:03,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2022-11-26 00:20:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 48 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:20:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-26 00:20:03,986 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 31 [2022-11-26 00:20:03,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:03,987 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-26 00:20:03,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-26 00:20:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-26 00:20:03,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:03,988 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:03,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:04,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-26 00:20:04,194 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:20:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:04,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1048989363, now seen corresponding path program 1 times [2022-11-26 00:20:04,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:04,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424558162] [2022-11-26 00:20:04,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:04,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:20:04,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:04,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424558162] [2022-11-26 00:20:04,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424558162] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:04,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514822529] [2022-11-26 00:20:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:04,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:04,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:04,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:04,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-26 00:20:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:04,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:20:04,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:20:04,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:20:04,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514822529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:20:04,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:20:04,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-26 00:20:04,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815240774] [2022-11-26 00:20:04,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:20:04,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:20:04,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:20:04,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:20:04,443 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:04,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:04,507 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-26 00:20:04,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:20:04,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 33 [2022-11-26 00:20:04,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:04,509 INFO L225 Difference]: With dead ends: 50 [2022-11-26 00:20:04,509 INFO L226 Difference]: Without dead ends: 49 [2022-11-26 00:20:04,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:20:04,512 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:04,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 55 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:20:04,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-26 00:20:04,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-26 00:20:04,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 47 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:20:04,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-26 00:20:04,520 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 33 [2022-11-26 00:20:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:04,520 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-26 00:20:04,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:04,520 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-26 00:20:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-26 00:20:04,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:04,521 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:04,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:04,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-26 00:20:04,727 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:20:04,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:04,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1841068204, now seen corresponding path program 1 times [2022-11-26 00:20:04,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:04,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746330997] [2022-11-26 00:20:04,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:04,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:20:04,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:04,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746330997] [2022-11-26 00:20:04,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746330997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:04,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874477082] [2022-11-26 00:20:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:04,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:04,828 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:04,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-26 00:20:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:04,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:20:04,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:20:04,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-26 00:20:05,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874477082] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:05,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [706322479] [2022-11-26 00:20:05,022 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:20:05,023 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:05,023 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:05,023 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:05,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:05,064 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:20:05,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-26 00:20:05,105 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:20:05,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:20:05,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-26 00:20:05,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:20:05,217 INFO L321 Elim1Store]: treesize reduction 76, result has 25.5 percent of original size [2022-11-26 00:20:05,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 213 [2022-11-26 00:20:05,276 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 [2022-11-26 00:20:05,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:05,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:20:05,982 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:09,508 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3183#(and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (< 2147483646 |ULTIMATE.start_Sum2_#t~post9#1|) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:20:09,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:09,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:09,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-26 00:20:09,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644612688] [2022-11-26 00:20:09,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:09,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:20:09,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:09,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:20:09,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2022-11-26 00:20:09,511 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 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) [2022-11-26 00:20:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:09,627 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-11-26 00:20:09,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:20:09,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 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) Word has length 34 [2022-11-26 00:20:09,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:09,629 INFO L225 Difference]: With dead ends: 62 [2022-11-26 00:20:09,629 INFO L226 Difference]: Without dead ends: 61 [2022-11-26 00:20:09,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:20:09,630 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:09,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 109 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:20:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-26 00:20:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2022-11-26 00:20:09,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:20:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-26 00:20:09,640 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 34 [2022-11-26 00:20:09,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:09,643 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-26 00:20:09,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 12 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) [2022-11-26 00:20:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-26 00:20:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-26 00:20:09,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:09,645 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:09,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:09,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:09,846 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:20:09,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:09,846 INFO L85 PathProgramCache]: Analyzing trace with hash -732227373, now seen corresponding path program 2 times [2022-11-26 00:20:09,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:09,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555830883] [2022-11-26 00:20:09,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:09,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:10,003 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-26 00:20:10,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:10,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555830883] [2022-11-26 00:20:10,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555830883] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:10,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697853662] [2022-11-26 00:20:10,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:20:10,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:10,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:10,006 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:10,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-26 00:20:10,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-26 00:20:10,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:10,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-26 00:20:10,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-26 00:20:10,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-26 00:20:10,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697853662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:10,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1009195654] [2022-11-26 00:20:10,569 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:20:10,569 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:10,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:10,569 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:10,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:10,617 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:20:10,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:20:10,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:20:10,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:20:10,733 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:20:10,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:20:10,778 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 [2022-11-26 00:20:10,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:10,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:20:11,491 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:15,400 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3592#(and (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:20:15,400 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:15,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:15,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-11-26 00:20:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40000871] [2022-11-26 00:20:15,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:15,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:20:15,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:15,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:20:15,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2022-11-26 00:20:15,403 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 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) [2022-11-26 00:20:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:15,808 INFO L93 Difference]: Finished difference Result 116 states and 130 transitions. [2022-11-26 00:20:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 00:20:15,809 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 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) Word has length 38 [2022-11-26 00:20:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:15,809 INFO L225 Difference]: With dead ends: 116 [2022-11-26 00:20:15,809 INFO L226 Difference]: Without dead ends: 63 [2022-11-26 00:20:15,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=156, Invalid=714, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:20:15,810 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:15,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 88 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:20:15,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-26 00:20:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-26 00:20:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 61 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:20:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2022-11-26 00:20:15,820 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 38 [2022-11-26 00:20:15,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:15,820 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2022-11-26 00:20:15,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 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) [2022-11-26 00:20:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2022-11-26 00:20:15,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-26 00:20:15,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:15,822 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:15,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:16,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-26 00:20:16,027 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:20:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1228839818, now seen corresponding path program 3 times [2022-11-26 00:20:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:16,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547384635] [2022-11-26 00:20:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-26 00:20:16,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:16,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547384635] [2022-11-26 00:20:16,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547384635] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:16,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916004455] [2022-11-26 00:20:16,430 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:20:16,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:16,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:16,431 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:16,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-26 00:20:16,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:20:16,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:16,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-26 00:20:16,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:16,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:16,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:20:17,314 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 00:20:17,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2022-11-26 00:20:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-26 00:20:17,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-26 00:20:17,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916004455] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:17,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1261893560] [2022-11-26 00:20:17,781 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:20:17,781 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:17,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:17,782 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:17,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:17,824 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:20:17,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:20:17,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:20:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:20:17,918 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:20:17,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:20:17,972 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 [2022-11-26 00:20:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:17,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:20:18,635 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:22,527 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4127#(and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (not (<= (+ |ULTIMATE.start_Sum2_#t~mem11#1| |ULTIMATE.start_Sum2_~count~1#1|) 9223372036854775807)) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (<= 94 |ULTIMATE.start_#Ultimate.C_memset_#amount#1|) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_Sum2_~i~1#1|) (= |#NULL.base| 0))' at error location [2022-11-26 00:20:22,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:22,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:22,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 30 [2022-11-26 00:20:22,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765986777] [2022-11-26 00:20:22,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:22,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-26 00:20:22,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-26 00:20:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1729, Unknown=0, NotChecked=0, Total=1892 [2022-11-26 00:20:22,530 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 30 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:23,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:23,949 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2022-11-26 00:20:23,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-26 00:20:23,950 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 30 states have internal predecessors, (79), 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 43 [2022-11-26 00:20:23,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:23,950 INFO L225 Difference]: With dead ends: 117 [2022-11-26 00:20:23,951 INFO L226 Difference]: Without dead ends: 64 [2022-11-26 00:20:23,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=320, Invalid=3586, Unknown=0, NotChecked=0, Total=3906 [2022-11-26 00:20:23,953 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 37 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:23,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 184 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:20:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-26 00:20:23,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-26 00:20:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 59 states have (on average 1.11864406779661) internal successors, (66), 62 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:20:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2022-11-26 00:20:23,963 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 43 [2022-11-26 00:20:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:23,964 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2022-11-26 00:20:23,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 30 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2022-11-26 00:20:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-26 00:20:23,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:20:23,965 INFO L195 NwaCegarLoop]: trace histogram [9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:23,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-26 00:20:24,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-26 00:20:24,171 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:20:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:20:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash -73195371, now seen corresponding path program 3 times [2022-11-26 00:20:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:20:24,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466281352] [2022-11-26 00:20:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:20:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:20:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:20:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 11 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-26 00:20:24,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:20:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466281352] [2022-11-26 00:20:24,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466281352] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:20:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767671299] [2022-11-26 00:20:24,677 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 00:20:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:24,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:20:24,679 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:20:24,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-26 00:20:24,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 00:20:24,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:20:24,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-26 00:20:24,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:20:24,846 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 6 treesize of output 5 [2022-11-26 00:20:25,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-26 00:20:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-26 00:20:25,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:20:25,915 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 24 proven. 21 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-26 00:20:25,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767671299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:20:25,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1864256978] [2022-11-26 00:20:25,917 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-26 00:20:25,918 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:20:25,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:20:25,918 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:20:25,918 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:20:25,958 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:20:25,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-26 00:20:25,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:20:25,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:25,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-11-26 00:20:26,058 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-26 00:20:26,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 219 treesize of output 216 [2022-11-26 00:20:26,115 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 [2022-11-26 00:20:26,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:20:26,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 27 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2022-11-26 00:20:26,795 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:20:31,078 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4744#(and (< |ULTIMATE.start_Sum2_~i~1#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) |ULTIMATE.start_Sum2_~instrs#1.offset|)) (not (<= 0 (+ |ULTIMATE.start_Sum2_#t~mem11#1| 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|))) (or (and (<= |ULTIMATE.start_Sum2_~count~1#1| 9223372036854775807) (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum2_#in~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (<= |ULTIMATE.start_Sum2_~instrs#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) (<= |ULTIMATE.start_Sum2_~i~1#1| 2147483647) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (<= 0 |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_Sum2_~count~1#1|)) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= |ULTIMATE.start_Sum2_#in~instrs#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 94) (<= |ULTIMATE.start_Sum_~i~0#1| 2147483647) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_Sum2_~instrs#1.offset|) (<= |ULTIMATE.start_Sum_~instrs#1.offset| 0) (<= |ULTIMATE.start_Sum_#in~instrs#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_Sum2_~instrs#1.base|) (<= |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset| 0) (= |ULTIMATE.start_Sum2_#in~instrs#1.offset| |ULTIMATE.start_main_~p~0#1.offset|) (<= 0 |ULTIMATE.start_Sum_~instrs#1.offset|) (= |ULTIMATE.start_Sum2_~i~1#1| 0) (= |ULTIMATE.start_Sum_#res#1| |ULTIMATE.start_Sum_~count~0#1|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset|) (= |ULTIMATE.start_Sum2_~count~1#1| 0) (<= |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| 0) (<= 0 |ULTIMATE.start_Sum_#in~instrs#1.offset|) (= |ULTIMATE.start_#Ultimate.C_memset_#value#1| 0) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) (= 4311811859 (mod |ULTIMATE.start_Sum_#res#1| 18446744073709551616)) (= |ULTIMATE.start_Sum2_#in~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~p~0#1.offset| 0) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#res#1.offset|) (<= 0 |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) (= |ULTIMATE.start_Sum2_#t~mem11#1| (select (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|) (+ (* 30 |ULTIMATE.start_Sum2_~i~1#1|) 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))))' at error location [2022-11-26 00:20:31,078 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:20:31,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:20:31,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 19, 19] total 40 [2022-11-26 00:20:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357240664] [2022-11-26 00:20:31,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:20:31,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-26 00:20:31,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:20:31,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-26 00:20:31,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2604, Unknown=0, NotChecked=0, Total=2862 [2022-11-26 00:20:31,081 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 40 states, 40 states have (on average 2.375) internal successors, (95), 40 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:20:32,217 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2022-11-26 00:20:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-26 00:20:32,218 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.375) internal successors, (95), 40 states have internal predecessors, (95), 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 49 [2022-11-26 00:20:32,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:20:32,218 INFO L225 Difference]: With dead ends: 64 [2022-11-26 00:20:32,218 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:20:32,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 98 SyntacticMatches, 7 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=681, Invalid=4575, Unknown=0, NotChecked=0, Total=5256 [2022-11-26 00:20:32,221 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 139 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:20:32,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 106 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 00:20:32,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:20:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:20:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:20:32,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2022-11-26 00:20:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:20:32,223 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:20:32,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.375) internal successors, (95), 40 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:20:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:20:32,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:20:32,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-26 00:20:32,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-26 00:20:32,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-26 00:20:32,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-26 00:20:32,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-26 00:20:32,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-26 00:20:32,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-26 00:20:32,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:20:32,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:20:34,191 INFO L902 garLoopResultBuilder]: At program point dummy_abortFINAL(lines 571 573) the Hoare annotation is: true [2022-11-26 00:20:34,192 INFO L899 garLoopResultBuilder]: For program point dummy_abortEXIT(lines 571 573) no Hoare annotation was computed. [2022-11-26 00:20:34,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-11-26 00:20:34,192 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 558) no Hoare annotation was computed. [2022-11-26 00:20:34,192 INFO L895 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse7 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse1 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse2 (<= 555 .cse7)) (.cse3 (<= .cse7 555))) (or (and (<= (select .cse0 |ULTIMATE.start_main_~p~0#1.offset|) 1) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) .cse1 .cse2 .cse3) (let ((.cse4 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse5 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse4 4311810305) (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3) (<= .cse5 999) (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse4) (<= 999 .cse5) .cse1 .cse2 (let ((.cse6 (mod |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (or (< (mod (+ |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse6) (not (< (mod |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse6)))) .cse3)))))) [2022-11-26 00:20:34,192 INFO L899 garLoopResultBuilder]: For program point L556-4(line 556) no Hoare annotation was computed. [2022-11-26 00:20:34,192 INFO L899 garLoopResultBuilder]: For program point L556-5(line 556) no Hoare annotation was computed. [2022-11-26 00:20:34,193 INFO L895 garLoopResultBuilder]: At program point L556-6(lines 556 558) the Hoare annotation is: (let ((.cse16 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse12 (select .cse16 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse14 (select .cse16 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse7 (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse15 (select .cse16 (+ |ULTIMATE.start_main_~p~0#1.offset| 78)))) (let ((.cse0 (<= .cse15 4311810305)) (.cse1 (= .cse7 3)) (.cse2 (<= .cse14 999)) (.cse3 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse4 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse5 (<= 4311810305 .cse15)) (.cse6 (<= 999 .cse14)) (.cse8 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse9 (<= 555 .cse12)) (.cse10 (let ((.cse13 (mod |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (or (< (mod (+ |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse13) (not (< (mod |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse13))))) (.cse11 (<= .cse12 555))) (or (and (<= 2 |ULTIMATE.start_Sum_~i~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (< |ULTIMATE.start_Sum_~i~0#1| .cse7) .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_Sum_~i~0#1| 1) .cse3 .cse4 .cse5 .cse6 .cse8 (<= 1 |ULTIMATE.start_Sum_~i~0#1|) .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) .cse3 .cse4 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse8 (= |ULTIMATE.start_Sum_~i~0#1| 0) .cse9 .cse10 .cse11))))) [2022-11-26 00:20:34,193 INFO L895 garLoopResultBuilder]: At program point L556-7(lines 556 558) the Hoare annotation is: (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse7 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 18)))) (let ((.cse1 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse2 (<= 555 .cse7)) (.cse3 (<= .cse7 555))) (or (and (<= (select .cse0 |ULTIMATE.start_main_~p~0#1.offset|) 1) (<= 0 |ULTIMATE.start_Sum_~i~0#1|) .cse1 .cse2 .cse3) (let ((.cse4 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse5 (select .cse0 (+ |ULTIMATE.start_main_~p~0#1.offset| 48)))) (and (<= .cse4 4311810305) (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3) (<= .cse5 999) (<= 3 |ULTIMATE.start_Sum_~i~0#1|) (<= |ULTIMATE.start_Sum_~i~0#1| 3) (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|) (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|) (<= 4311810305 .cse4) (<= 999 .cse5) .cse1 .cse2 (let ((.cse6 (mod |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (or (< (mod (+ |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse6) (not (< (mod |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse6)))) .cse3)))))) [2022-11-26 00:20:34,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-26 00:20:34,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:20:34,193 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (= |ULTIMATE.start_main_~p~0#1.offset| 0) [2022-11-26 00:20:34,193 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 587) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L902 garLoopResultBuilder]: At program point L586-1(lines 586 587) the Hoare annotation is: true [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 556) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 566) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point L566-4(line 566) no Hoare annotation was computed. [2022-11-26 00:20:34,194 INFO L899 garLoopResultBuilder]: For program point L566-5(line 566) no Hoare annotation was computed. [2022-11-26 00:20:34,195 INFO L895 garLoopResultBuilder]: At program point L566-6(lines 566 568) the Hoare annotation is: (let ((.cse27 (select |#memory_int| |ULTIMATE.start_Sum2_~instrs#1.base|)) (.cse37 (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|))) (let ((.cse30 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 18))) (.cse29 (select .cse27 (+ 18 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse33 (select .cse27 (+ 78 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse31 (select .cse27 (+ 48 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (.cse35 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 48))) (.cse36 (select .cse37 (+ |ULTIMATE.start_main_~p~0#1.offset| 78))) (.cse34 (select .cse27 |ULTIMATE.start_Sum2_~instrs#1.offset|))) (let ((.cse0 (= |ULTIMATE.start_Sum2_~i~1#1| 0)) (.cse5 (<= |ULTIMATE.start_Sum2_~count~1#1| 0)) (.cse6 (<= 0 |ULTIMATE.start_Sum2_~count~1#1|)) (.cse2 (<= (select .cse37 |ULTIMATE.start_main_~p~0#1.offset|) 1)) (.cse3 (<= .cse34 1)) (.cse7 (<= 0 |ULTIMATE.start_Sum_~i~0#1|)) (.cse12 (<= .cse36 4311810305)) (.cse13 (= (select (select |#memory_int| |ULTIMATE.start_Sum_~instrs#1.base|) |ULTIMATE.start_Sum_~instrs#1.offset|) 3)) (.cse14 (<= .cse35 999)) (.cse15 (<= 999 .cse31)) (.cse16 (<= .cse33 4311810305)) (.cse1 (= |ULTIMATE.start_Sum2_~instrs#1.offset| 0)) (.cse17 (<= 3 |ULTIMATE.start_Sum_~i~0#1|)) (.cse18 (<= |ULTIMATE.start_Sum_~i~0#1| 3)) (.cse19 (= |ULTIMATE.start_Sum_~instrs#1.base| |ULTIMATE.start_main_~p~0#1.base|)) (.cse20 (= |ULTIMATE.start_main_~p~0#1.offset| |ULTIMATE.start_Sum_~instrs#1.offset|)) (.cse4 (<= .cse29 555)) (.cse21 (<= 4311810305 .cse36)) (.cse22 (<= 999 .cse35)) (.cse23 (<= .cse34 3)) (.cse24 (<= 4311810305 .cse33)) (.cse8 (= |ULTIMATE.start_main_~p~0#1.offset| 0)) (.cse9 (<= 555 .cse29)) (.cse10 (<= 555 .cse30)) (.cse25 (let ((.cse32 (mod |ULTIMATE.start_#Ultimate.C_memset_#amount#1| 4294967296))) (or (< (mod (+ |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 3) 4294967296) .cse32) (not (< (mod |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr17#1| 4294967296) .cse32))))) (.cse26 (<= .cse31 999)) (.cse11 (<= .cse30 555))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse13 .cse14 .cse0 .cse15 .cse16 .cse1 .cse17 .cse18 .cse19 .cse20 .cse4 .cse21 .cse5 .cse22 .cse23 .cse24 .cse6 .cse8 .cse9 .cse10 .cse25 .cse26 .cse11) (and (<= 1 |ULTIMATE.start_Sum2_~i~1#1|) .cse1 .cse2 .cse3 .cse7 .cse8 .cse10 .cse11) (let ((.cse28 (* 30 |ULTIMATE.start_Sum2_~i~1#1|))) (and .cse12 .cse13 .cse14 .cse16 .cse1 .cse17 (< 0 (+ 9223372036854775809 (select .cse27 (+ .cse28 18 |ULTIMATE.start_Sum2_~instrs#1.offset|)) |ULTIMATE.start_Sum2_~count~1#1|)) .cse18 .cse19 .cse20 .cse4 .cse21 .cse22 (= 2 |ULTIMATE.start_Sum2_~i~1#1|) .cse23 (<= |ULTIMATE.start_Sum2_~count~1#1| (+ .cse29 (select .cse27 (+ .cse28 (- 12) |ULTIMATE.start_Sum2_~instrs#1.offset|)))) .cse8 .cse10 .cse25 .cse26 .cse11)) (and .cse12 .cse13 .cse14 .cse1 .cse17 (<= 3 |ULTIMATE.start_Sum2_~i~1#1|) .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 (< |ULTIMATE.start_Sum2_~i~1#1| 2147483647) .cse8 .cse10 .cse25 .cse11) (and .cse12 .cse13 (<= .cse29 |ULTIMATE.start_Sum2_~count~1#1|) .cse14 .cse15 .cse16 .cse1 .cse17 .cse18 .cse19 .cse20 .cse4 .cse21 .cse22 .cse23 .cse24 (= |ULTIMATE.start_Sum2_~i~1#1| 1) .cse8 .cse9 .cse10 (<= |ULTIMATE.start_Sum2_~count~1#1| .cse29) .cse25 .cse26 .cse11))))) [2022-11-26 00:20:34,195 INFO L902 garLoopResultBuilder]: At program point L566-7(lines 566 568) the Hoare annotation is: true [2022-11-26 00:20:34,195 INFO L902 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: true [2022-11-26 00:20:34,195 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 567) no Hoare annotation was computed. [2022-11-26 00:20:34,195 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-11-26 00:20:34,196 INFO L899 garLoopResultBuilder]: For program point L567-1(line 567) no Hoare annotation was computed. [2022-11-26 00:20:34,196 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 585) no Hoare annotation was computed. [2022-11-26 00:20:34,196 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 585) no Hoare annotation was computed. [2022-11-26 00:20:34,199 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:20:34,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:20:34,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:20:34 BoogieIcfgContainer [2022-11-26 00:20:34,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:20:34,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:20:34,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:20:34,274 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:20:34,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:19:33" (3/4) ... [2022-11-26 00:20:34,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:20:34,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure dummy_abort [2022-11-26 00:20:34,315 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-26 00:20:34,316 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-26 00:20:34,316 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:20:34,317 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:20:34,371 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:20:34,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:20:34,372 INFO L158 Benchmark]: Toolchain (without parser) took 62594.04ms. Allocated memory was 144.7MB in the beginning and 333.4MB in the end (delta: 188.7MB). Free memory was 98.8MB in the beginning and 213.1MB in the end (delta: -114.3MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,372 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:20:34,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.90ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 81.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.51ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,374 INFO L158 Benchmark]: Boogie Preprocessor took 51.14ms. Allocated memory is still 144.7MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,374 INFO L158 Benchmark]: RCFGBuilder took 605.32ms. Allocated memory is still 144.7MB. Free memory was 77.8MB in the beginning and 63.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,374 INFO L158 Benchmark]: TraceAbstraction took 61176.12ms. Allocated memory was 144.7MB in the beginning and 333.4MB in the end (delta: 188.7MB). Free memory was 62.7MB in the beginning and 216.2MB in the end (delta: -153.5MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,375 INFO L158 Benchmark]: Witness Printer took 97.63ms. Allocated memory is still 333.4MB. Free memory was 216.2MB in the beginning and 213.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:20:34,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.90ms. Allocated memory is still 144.7MB. Free memory was 98.8MB in the beginning and 81.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.51ms. Allocated memory is still 144.7MB. Free memory was 81.6MB in the beginning and 79.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.14ms. Allocated memory is still 144.7MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.32ms. Allocated memory is still 144.7MB. Free memory was 77.8MB in the beginning and 63.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 61176.12ms. Allocated memory was 144.7MB in the beginning and 333.4MB in the end (delta: 188.7MB). Free memory was 62.7MB in the beginning and 216.2MB in the end (delta: -153.5MB). Peak memory consumption was 150.6MB. Max. memory is 16.1GB. * Witness Printer took 97.63ms. Allocated memory is still 333.4MB. Free memory was 216.2MB in the beginning and 213.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: 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: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: 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 2 procedures, 29 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 61.0s, OverallIterations: 17, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 673 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 658 mSDsluCounter, 1562 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1276 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2363 IncrementalHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 286 mSDtfsCounter, 2363 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1117 GetRequests, 678 SyntacticMatches, 15 SemanticMatches, 424 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4631 ImplicationChecksByTransitivity, 37.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=16, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 86 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 22 PreInvPairs, 51 NumberOfFragments, 1389 HoareAnnotationTreeSize, 22 FomulaSimplifications, 790 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 756 NumberOfCodeBlocks, 727 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1004 ConstructedInterpolants, 0 QuantifiedInterpolants, 8269 SizeOfPredicates, 105 NumberOfNonLiveVariables, 2061 ConjunctsInSsa, 253 ConjunctsInUnsatCore, 41 InterpolantComputations, 7 PerfectInterpolantSequences, 807/1066 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: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 3, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 6, TOOLS_POST_TIME: 0.2s, 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: 2, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 12, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 3, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, 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: 44, DAG_COMPRESSION_RETAINED_NODES: 23, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: p == 0 - InvariantResult [Line: 566]: Loop Invariant Derived loop invariant: (((((((((((((((i == 0 && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && count <= 0) && 0 <= count) && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || (((((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && i == 0) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && count <= 0) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && 0 <= count) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((1 <= i && instrs == 0) && unknown-#memory_int-unknown[p][p] <= 1) && unknown-#memory_int-unknown[instrs][instrs] <= 1) && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && 0 < 9223372036854775809 + unknown-#memory_int-unknown[instrs][30 * i + 18 + instrs] + count) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && 2 == i) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && count <= unknown-#memory_int-unknown[instrs][18 + instrs] + unknown-#memory_int-unknown[instrs][30 * i + -12 + instrs]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && instrs == 0) && 3 <= i) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && i < 2147483647) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[instrs][18 + instrs] <= count) && unknown-#memory_int-unknown[p][p + 48] <= 999) && 999 <= unknown-#memory_int-unknown[instrs][48 + instrs]) && unknown-#memory_int-unknown[instrs][78 + instrs] <= 4311810305) && instrs == 0) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && unknown-#memory_int-unknown[instrs][18 + instrs] <= 555) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && unknown-#memory_int-unknown[instrs][instrs] <= 3) && 4311810305 <= unknown-#memory_int-unknown[instrs][78 + instrs]) && i == 1) && p == 0) && 555 <= unknown-#memory_int-unknown[instrs][18 + instrs]) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && count <= unknown-#memory_int-unknown[instrs][18 + instrs]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[instrs][48 + instrs] <= 999) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((((unknown-#memory_int-unknown[p][p] <= 1 && 0 <= i) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((((((((((((((2 <= i && unknown-#memory_int-unknown[p][p + 78] <= 4311810305) && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && i < unknown-#memory_int-unknown[instrs][instrs]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555) || ((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && i <= 1) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 1 <= i) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || ((((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && 3 <= i) && i <= 3) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555)) || (((((((((((unknown-#memory_int-unknown[p][p + 78] <= 4311810305 && unknown-#memory_int-unknown[instrs][instrs] == 3) && unknown-#memory_int-unknown[p][p + 48] <= 999) && instrs == p) && p == instrs) && 4311810305 <= unknown-#memory_int-unknown[p][p + 78]) && 999 <= unknown-#memory_int-unknown[p][p + 48]) && p == 0) && i == 0) && 555 <= unknown-#memory_int-unknown[p][p + 18]) && ((aux-#t~loopctr17-aux + 3) % 4294967296 < unknown-#amount-unknown % 4294967296 || !(aux-#t~loopctr17-aux % 4294967296 < unknown-#amount-unknown % 4294967296))) && unknown-#memory_int-unknown[p][p + 18] <= 555) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:20:34,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc857dc7-2701-400f-87b6-7f03e3e41b9f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE