./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:20:58,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:20:58,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:20:58,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:20:58,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:20:58,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:20:58,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:20:58,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:20:58,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:20:58,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:20:58,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:20:58,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:20:58,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:20:58,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:20:58,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:20:58,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:20:58,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:20:58,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:20:58,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:20:58,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:20:58,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:20:58,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:20:58,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:20:58,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:20:58,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:20:58,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:20:58,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:20:58,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:20:58,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:20:58,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:20:58,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:20:58,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:20:58,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:20:58,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:20:58,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:20:58,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:20:58,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:20:58,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:20:58,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:20:58,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:20:58,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:20:58,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:20:58,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:20:58,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:20:58,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:20:58,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:20:58,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:20:58,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:20:58,908 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:20:58,909 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:20:58,909 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:20:58,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:20:58,910 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:20:58,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:20:58,910 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:20:58,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:20:58,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:20:58,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:20:58,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:20:58,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:20:58,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:20:58,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:20:58,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:20:58,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:20:58,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:20:58,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:20:58,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:20:58,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:20:58,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:20:58,916 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:20:58,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:20:58,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:20:58,917 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:20:58,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:20:58,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:20:58,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:20:58,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:20:58,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:20:58,919 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:20:58,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:20:58,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:20:58,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:20:58,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:20:58,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:20:58,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:20:58,921 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_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2022-11-22 02:20:59,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:20:59,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:20:59,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:20:59,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:20:59,322 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:20:59,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2022-11-22 02:21:02,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:21:03,025 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:21:03,026 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2022-11-22 02:21:03,060 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/data/328c2f99d/298bb7638ae544dba6223c1e4f62b9da/FLAGa272586fa [2022-11-22 02:21:03,080 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/data/328c2f99d/298bb7638ae544dba6223c1e4f62b9da [2022-11-22 02:21:03,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:21:03,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:21:03,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:21:03,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:21:03,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:21:03,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244fb7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03, skipping insertion in model container [2022-11-22 02:21:03,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:21:03,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:21:03,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2022-11-22 02:21:03,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:21:03,587 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:21:03,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2022-11-22 02:21:03,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:21:03,680 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:21:03,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03 WrapperNode [2022-11-22 02:21:03,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:21:03,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:21:03,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:21:03,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:21:03,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,738 INFO L138 Inliner]: procedures = 126, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2022-11-22 02:21:03,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:21:03,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:21:03,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:21:03,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:21:03,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:21:03,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:21:03,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:21:03,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:21:03,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (1/1) ... [2022-11-22 02:21:03,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:21:03,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:03,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:21:03,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:21:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-22 02:21:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-22 02:21:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:21:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:21:03,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:21:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:21:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:21:03,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:21:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:21:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:21:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:21:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:21:03,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:21:04,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:21:04,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:21:04,164 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-22 02:21:04,358 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:21:04,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:21:04,458 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 02:21:04,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:04 BoogieIcfgContainer [2022-11-22 02:21:04,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:21:04,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:21:04,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:21:04,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:21:04,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:21:03" (1/3) ... [2022-11-22 02:21:04,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e7986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:04, skipping insertion in model container [2022-11-22 02:21:04,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:03" (2/3) ... [2022-11-22 02:21:04,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e7986f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:04, skipping insertion in model container [2022-11-22 02:21:04,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:04" (3/3) ... [2022-11-22 02:21:04,472 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all_reverse.i [2022-11-22 02:21:04,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:21:04,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 02:21:04,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:21:04,599 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;@12a60585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:21:04,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 02:21:04,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:21:04,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:04,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:21:04,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 128320, now seen corresponding path program 1 times [2022-11-22 02:21:04,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:04,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940354687] [2022-11-22 02:21:04,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:04,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:04,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:04,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940354687] [2022-11-22 02:21:04,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940354687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:04,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:04,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:21:04,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740521233] [2022-11-22 02:21:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:04,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:04,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:04,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:21:04,959 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:05,040 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2022-11-22 02:21:05,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:05,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-22 02:21:05,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:05,054 INFO L225 Difference]: With dead ends: 49 [2022-11-22 02:21:05,057 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:21:05,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:21:05,070 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:05,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:21:05,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:21:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2022-11-22 02:21:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-22 02:21:05,154 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 3 [2022-11-22 02:21:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:05,156 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-22 02:21:05,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-22 02:21:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:21:05,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:05,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:21:05,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:21:05,159 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)] === [2022-11-22 02:21:05,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:05,161 INFO L85 PathProgramCache]: Analyzing trace with hash 120559001, now seen corresponding path program 1 times [2022-11-22 02:21:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:05,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18122] [2022-11-22 02:21:05,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:05,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:05,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:05,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:05,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18122] [2022-11-22 02:21:05,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:05,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:05,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:21:05,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749992388] [2022-11-22 02:21:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:05,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:05,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:05,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:05,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:05,455 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:05,557 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-22 02:21:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:21:05,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:21:05,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:05,559 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:21:05,560 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 02:21:05,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:21:05,562 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:05,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 52 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:21:05,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 02:21:05,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-22 02:21:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 25 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) [2022-11-22 02:21:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-22 02:21:05,570 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 5 [2022-11-22 02:21:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:05,570 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-22 02:21:05,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-22 02:21:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:21:05,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:05,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:21:05,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:21:05,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:05,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:05,573 INFO L85 PathProgramCache]: Analyzing trace with hash -557638200, now seen corresponding path program 1 times [2022-11-22 02:21:05,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:05,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965666572] [2022-11-22 02:21:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:05,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:05,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965666572] [2022-11-22 02:21:05,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965666572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:05,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:05,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:21:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775113270] [2022-11-22 02:21:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:05,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:05,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:05,725 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:05,806 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-22 02:21:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:21:05,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:21:05,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:05,808 INFO L225 Difference]: With dead ends: 28 [2022-11-22 02:21:05,809 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 02:21:05,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:21:05,811 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:05,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:21:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 02:21:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 02:21:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-22 02:21:05,817 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 6 [2022-11-22 02:21:05,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:05,818 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-22 02:21:05,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-22 02:21:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:21:05,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:05,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:05,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:21:05,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:05,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash 980606151, now seen corresponding path program 1 times [2022-11-22 02:21:05,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:05,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511050680] [2022-11-22 02:21:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:05,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:06,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:06,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511050680] [2022-11-22 02:21:06,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511050680] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:06,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401341705] [2022-11-22 02:21:06,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:06,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:06,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:06,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:06,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:21:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:21:06,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:21:06,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:21:06,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401341705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:06,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:21:06,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 2 [2022-11-22 02:21:06,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412391799] [2022-11-22 02:21:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:06,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:06,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:06,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:06,266 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:06,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:06,300 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-22 02:21:06,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:06,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:21:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:06,301 INFO L225 Difference]: With dead ends: 27 [2022-11-22 02:21:06,302 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 02:21:06,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:06,304 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:06,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:21:06,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 02:21:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-22 02:21:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 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) [2022-11-22 02:21:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-22 02:21:06,310 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 8 [2022-11-22 02:21:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:06,311 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-22 02:21:06,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-22 02:21:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:21:06,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:06,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:06,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:06,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:06,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:06,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:06,521 INFO L85 PathProgramCache]: Analyzing trace with hash 334019684, now seen corresponding path program 1 times [2022-11-22 02:21:06,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:06,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418992522] [2022-11-22 02:21:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:06,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:06,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:06,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418992522] [2022-11-22 02:21:06,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418992522] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:06,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667746241] [2022-11-22 02:21:06,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:06,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:06,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:06,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:06,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:21:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:06,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:21:06,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:21:06,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:21:06,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667746241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:06,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:21:06,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 2 [2022-11-22 02:21:06,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664469610] [2022-11-22 02:21:06,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:06,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:06,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:06,904 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-22 02:21:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:06,946 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-22 02:21:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:06,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2022-11-22 02:21:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:06,949 INFO L225 Difference]: With dead ends: 26 [2022-11-22 02:21:06,949 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 02:21:06,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:06,951 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:06,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:21:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 02:21:06,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 02:21:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-22 02:21:06,959 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2022-11-22 02:21:06,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:06,960 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-22 02:21:06,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2022-11-22 02:21:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-22 02:21:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:21:06,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:06,961 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-22 02:21:06,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:07,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:07,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1761916768, now seen corresponding path program 1 times [2022-11-22 02:21:07,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:07,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140368429] [2022-11-22 02:21:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:07,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:07,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:07,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140368429] [2022-11-22 02:21:07,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140368429] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:07,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214677778] [2022-11-22 02:21:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:07,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:07,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:07,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:07,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:21:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:07,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 02:21:07,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:07,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:21:07,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214677778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:07,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:21:07,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-22 02:21:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586532405] [2022-11-22 02:21:07,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:07,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:21:07,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:21:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:21:07,738 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:07,849 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-11-22 02:21:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:21:07,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 02:21:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:07,852 INFO L225 Difference]: With dead ends: 25 [2022-11-22 02:21:07,852 INFO L226 Difference]: Without dead ends: 24 [2022-11-22 02:21:07,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:21:07,854 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:07,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:21:07,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-22 02:21:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-22 02:21:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-22 02:21:07,858 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2022-11-22 02:21:07,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:07,859 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-22 02:21:07,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:07,859 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-22 02:21:07,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:21:07,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:07,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-11-22 02:21:07,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:08,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:08,074 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:08,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:08,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1215154975, now seen corresponding path program 1 times [2022-11-22 02:21:08,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:08,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898934390] [2022-11-22 02:21:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:08,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:21:08,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:08,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898934390] [2022-11-22 02:21:08,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898934390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:08,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:08,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:21:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438256400] [2022-11-22 02:21:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:08,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:21:08,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:08,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:21:08,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:21:08,158 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:08,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:08,198 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-22 02:21:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:21:08,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 [2022-11-22 02:21:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:08,200 INFO L225 Difference]: With dead ends: 24 [2022-11-22 02:21:08,200 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 02:21:08,200 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 [2022-11-22 02:21:08,201 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:08,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:21:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 02:21:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-11-22 02:21:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 18 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) [2022-11-22 02:21:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-22 02:21:08,206 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2022-11-22 02:21:08,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:08,207 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-22 02:21:08,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:08,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-22 02:21:08,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 02:21:08,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:08,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:08,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:21:08,208 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)] === [2022-11-22 02:21:08,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:08,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1054013396, now seen corresponding path program 1 times [2022-11-22 02:21:08,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:08,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268030624] [2022-11-22 02:21:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:08,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:08,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:08,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268030624] [2022-11-22 02:21:08,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268030624] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:08,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157454368] [2022-11-22 02:21:08,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:08,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:08,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:08,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:08,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:21:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:08,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:21:08,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:08,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:21:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:08,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157454368] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:21:08,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1439491358] [2022-11-22 02:21:08,590 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-22 02:21:08,590 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:21:08,594 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:21:08,600 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:21:08,600 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:21:08,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,746 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:21:08,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:21:08,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,771 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 [2022-11-22 02:21:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,867 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:21:08,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 02:21:08,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:08,934 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:21:08,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 02:21:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-22 02:21:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-22 02:21:09,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:09,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:09,415 INFO L321 Elim1Store]: treesize reduction 124, result has 24.8 percent of original size [2022-11-22 02:21:09,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 280 treesize of output 304 [2022-11-22 02:21:09,485 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-22 02:21:09,486 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 7 case distinctions, treesize of input 273 treesize of output 282 [2022-11-22 02:21:09,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:09,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,145 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 02:21:10,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 281 treesize of output 267 [2022-11-22 02:21:10,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,259 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 02:21:10,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 285 treesize of output 270 [2022-11-22 02:21:10,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 274 treesize of output 265 [2022-11-22 02:21:10,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,440 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-22 02:21:10,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 444 [2022-11-22 02:21:10,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 277 [2022-11-22 02:21:10,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:10,596 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-22 02:21:10,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 408 treesize of output 432 [2022-11-22 02:21:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:10,722 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 02:21:10,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 413 treesize of output 368 [2022-11-22 02:21:11,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 429 treesize of output 384 [2022-11-22 02:21:11,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 364 treesize of output 360 [2022-11-22 02:21:11,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:21:11,179 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:21:11,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 492 treesize of output 433 [2022-11-22 02:21:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 327 treesize of output 315 [2022-11-22 02:21:11,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 392 treesize of output 324 [2022-11-22 02:21:11,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:11,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:11,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:11,844 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 02:21:11,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 180 [2022-11-22 02:21:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:11,942 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:11,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-22 02:21:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:11,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:12,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:12,081 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:21:12,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-22 02:21:12,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:21:12,152 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:21:12,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-22 02:21:12,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-22 02:21:12,509 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 15 treesize of output 1 [2022-11-22 02:21:12,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:21:12,526 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 2 case distinctions, treesize of input 63 treesize of output 49 [2022-11-22 02:21:12,551 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-22 02:21:12,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2022-11-22 02:21:12,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2022-11-22 02:21:12,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:12,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:12,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:12,710 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:12,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-22 02:21:12,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:12,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:12,785 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:21:12,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-22 02:21:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:12,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:12,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:12,903 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:21:12,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 30 [2022-11-22 02:21:12,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:12,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:21:12,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 65 [2022-11-22 02:21:13,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:13,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:13,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-22 02:21:13,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 25 treesize of output 3 [2022-11-22 02:21:13,160 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:21:15,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1439491358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:15,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:21:15,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-11-22 02:21:15,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197416609] [2022-11-22 02:21:15,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:15,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:21:15,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:21:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2022-11-22 02:21:15,302 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:15,626 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-22 02:21:15,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:21:15,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 13 [2022-11-22 02:21:15,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:15,627 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:21:15,627 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 02:21:15,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2022-11-22 02:21:15,628 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:15,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 20 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:21:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 02:21:15,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-11-22 02:21:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-22 02:21:15,634 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2022-11-22 02:21:15,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:15,635 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-22 02:21:15,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-22 02:21:15,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 02:21:15,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:15,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:15,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:15,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:15,837 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:15,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:15,838 INFO L85 PathProgramCache]: Analyzing trace with hash -367217657, now seen corresponding path program 1 times [2022-11-22 02:21:15,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:15,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69365167] [2022-11-22 02:21:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:15,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:15,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:15,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69365167] [2022-11-22 02:21:15,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69365167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:15,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270281593] [2022-11-22 02:21:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:15,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:15,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:15,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:15,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 02:21:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:16,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:21:16,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:16,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:21:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:21:16,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270281593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:21:16,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2116236112] [2022-11-22 02:21:16,152 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 02:21:16,152 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:21:16,153 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:21:16,155 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:21:16,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:21:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,199 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:21:16,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:21:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,211 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 [2022-11-22 02:21:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,265 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:21:16,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 02:21:16,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:21:16,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-22 02:21:16,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-22 02:21:16,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:16,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:16,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:16,539 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 02:21:16,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-22 02:21:16,644 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-22 02:21:16,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-22 02:21:16,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,217 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:21:17,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 281 treesize of output 267 [2022-11-22 02:21:17,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,304 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:21:17,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 285 treesize of output 270 [2022-11-22 02:21:17,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 274 treesize of output 265 [2022-11-22 02:21:17,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,486 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-22 02:21:17,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 449 [2022-11-22 02:21:17,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 286 treesize of output 277 [2022-11-22 02:21:17,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,646 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-22 02:21:17,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 408 treesize of output 437 [2022-11-22 02:21:17,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 49 [2022-11-22 02:21:17,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:21:17,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-22 02:21:17,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:17,773 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 02:21:17,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 413 treesize of output 368 [2022-11-22 02:21:17,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 59 [2022-11-22 02:21:17,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:17,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 17 [2022-11-22 02:21:18,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 02:21:18,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:18,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:18,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:18,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:18,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:18,908 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:18,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 184 [2022-11-22 02:21:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:18,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:18,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:18,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:19,010 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:21:19,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-22 02:21:19,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:19,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:19,161 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:21:19,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-22 02:21:19,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-22 02:21:19,259 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:21:19,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 143 treesize of output 122 [2022-11-22 02:21:19,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 104 treesize of output 78 [2022-11-22 02:21:19,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:19,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:19,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:19,585 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:19,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-22 02:21:19,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:19,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:19,650 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:21:19,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 173 [2022-11-22 02:21:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:19,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:19,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:19,797 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 02:21:19,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 101 [2022-11-22 02:21:19,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 101 treesize of output 71 [2022-11-22 02:21:19,851 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-22 02:21:19,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 145 [2022-11-22 02:21:19,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 3 [2022-11-22 02:21:19,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:19,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 125 treesize of output 91 [2022-11-22 02:21:19,920 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:21:21,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2116236112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:21,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:21:21,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4, 4, 4] total 14 [2022-11-22 02:21:21,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227287667] [2022-11-22 02:21:21,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:21,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:21:21,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:21,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:21:21,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=157, Unknown=2, NotChecked=0, Total=210 [2022-11-22 02:21:21,809 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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) [2022-11-22 02:21:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:22,106 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-11-22 02:21:22,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:21:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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 16 [2022-11-22 02:21:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:22,109 INFO L225 Difference]: With dead ends: 39 [2022-11-22 02:21:22,109 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 02:21:22,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=51, Invalid=157, Unknown=2, NotChecked=0, Total=210 [2022-11-22 02:21:22,110 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:22,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 30 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:21:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 02:21:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2022-11-22 02:21:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-22 02:21:22,116 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 16 [2022-11-22 02:21:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:22,116 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-22 02:21:22,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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) [2022-11-22 02:21:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-22 02:21:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 02:21:22,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:22,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:22,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:22,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 02:21:22,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 02:21:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:22,323 INFO L85 PathProgramCache]: Analyzing trace with hash 560460682, now seen corresponding path program 1 times [2022-11-22 02:21:22,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:22,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683993250] [2022-11-22 02:21:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:22,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:21:22,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:22,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683993250] [2022-11-22 02:21:22,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683993250] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:21:22,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675940417] [2022-11-22 02:21:22,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:22,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:21:22,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:22,409 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:21:22,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 02:21:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:22,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 02:21:22,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:21:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:21:22,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:21:22,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 02:21:22,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675940417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:21:22,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1218690311] [2022-11-22 02:21:22,605 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:21:22,605 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:21:22,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:21:22,606 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:21:22,606 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:21:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,634 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:21:22,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-22 02:21:22,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,659 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:21:22,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-22 02:21:22,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,711 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:21:22,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 02:21:22,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 02:21:22,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:22,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2022-11-22 02:21:22,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-11-22 02:21:22,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:22,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:21:22,974 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 02:21:22,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 275 treesize of output 284 [2022-11-22 02:21:23,074 INFO L321 Elim1Store]: treesize reduction 132, result has 20.0 percent of original size [2022-11-22 02:21:23,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 278 treesize of output 294 [2022-11-22 02:21:23,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,563 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:21:23,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 281 treesize of output 267 [2022-11-22 02:21:23,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,655 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:21:23,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 285 treesize of output 270 [2022-11-22 02:21:23,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 274 treesize of output 265 [2022-11-22 02:21:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 274 treesize of output 265 [2022-11-22 02:21:23,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,775 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,829 INFO L321 Elim1Store]: treesize reduction 66, result has 32.0 percent of original size [2022-11-22 02:21:23,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 444 [2022-11-22 02:21:23,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:23,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:23,932 INFO L321 Elim1Store]: treesize reduction 74, result has 34.5 percent of original size [2022-11-22 02:21:23,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 408 treesize of output 437 [2022-11-22 02:21:24,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,025 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-22 02:21:24,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 413 treesize of output 368 [2022-11-22 02:21:24,186 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-22 02:21:24,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 185 [2022-11-22 02:21:24,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 178 treesize of output 134 [2022-11-22 02:21:24,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 41 treesize of output 17 [2022-11-22 02:21:24,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,326 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 429 treesize of output 376 [2022-11-22 02:21:24,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 356 treesize of output 350 [2022-11-22 02:21:24,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:21:24,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:24,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:24,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:24,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:24,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:25,002 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 02:21:25,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 185 [2022-11-22 02:21:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:25,084 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:25,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 159 [2022-11-22 02:21:25,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:25,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:25,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 67 [2022-11-22 02:21:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 67 treesize of output 45 [2022-11-22 02:21:25,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 3 [2022-11-22 02:21:25,381 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 02:21:25,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 169 treesize of output 144 [2022-11-22 02:21:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 126 treesize of output 92 [2022-11-22 02:21:25,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,569 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:21:25,569 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 2 case distinctions, treesize of input 63 treesize of output 49 [2022-11-22 02:21:25,594 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-11-22 02:21:25,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2022-11-22 02:21:25,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2022-11-22 02:21:25,619 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 15 treesize of output 1 [2022-11-22 02:21:25,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:25,717 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:21:25,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 61 [2022-11-22 02:21:25,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:25,759 INFO L321 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2022-11-22 02:21:25,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 02:21:25,782 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 02:21:25,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 02:21:25,797 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 15 treesize of output 1 [2022-11-22 02:21:25,880 INFO L321 Elim1Store]: treesize reduction 61, result has 17.6 percent of original size [2022-11-22 02:21:25,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 46 [2022-11-22 02:21:25,918 INFO L321 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2022-11-22 02:21:25,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 41 [2022-11-22 02:21:25,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 [2022-11-22 02:21:25,958 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 15 treesize of output 1 [2022-11-22 02:21:26,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:21:26,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:21:26,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:26,129 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 02:21:26,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 189 [2022-11-22 02:21:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:26,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:21:26,203 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 02:21:26,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 178 [2022-11-22 02:21:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:21:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:21:26,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 02:21:26,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 43 [2022-11-22 02:21:26,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 3 [2022-11-22 02:21:26,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 02:21:26,421 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-22 02:21:26,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 65 [2022-11-22 02:21:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:21:26,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 45 treesize of output 27 [2022-11-22 02:21:26,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 3 [2022-11-22 02:21:26,492 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:21:27,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1218690311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:27,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:21:27,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 14 [2022-11-22 02:21:27,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175885779] [2022-11-22 02:21:27,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:27,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:21:27,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:27,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:21:27,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=162, Unknown=2, NotChecked=0, Total=210 [2022-11-22 02:21:27,897 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2022-11-22 02:21:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:28,625 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-22 02:21:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 02:21:28,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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 18 [2022-11-22 02:21:28,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:28,626 INFO L225 Difference]: With dead ends: 29 [2022-11-22 02:21:28,626 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:21:28,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=266, Unknown=2, NotChecked=0, Total=342 [2022-11-22 02:21:28,627 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 58 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:28,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 6 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 1 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:21:28,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:21:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:21:28,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:21:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:21:28,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-22 02:21:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:28,629 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:21:28,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2022-11-22 02:21:28,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:21:28,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:21:28,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 02:21:28,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 02:21:28,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 02:21:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 02:21:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 02:21:28,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 02:21:28,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:21:28,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 02:21:28,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:21:29,559 INFO L902 garLoopResultBuilder]: At program point myexitENTRY(lines 572 574) the Hoare annotation is: true [2022-11-22 02:21:29,559 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point L610-1(lines 610 613) no Hoare annotation was computed. [2022-11-22 02:21:29,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L895 garLoopResultBuilder]: At program point L610-3(lines 610 613) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_dll_remove_last_#in~head#1.offset| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_last_~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0)) [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point L610-4(lines 610 613) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point L623-1(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,560 INFO L899 garLoopResultBuilder]: For program point L623-5(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point L623-6(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L895 garLoopResultBuilder]: At program point L623-7(lines 623 625) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse2 (<= |ULTIMATE.start_dll_create_#res#1.offset| 0)) (.cse3 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse4 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse5 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse6 (<= |ULTIMATE.start_dll_create_~len#1| 0)) (.cse7 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse8 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse9 (= |#NULL.offset| 0)) (.cse10 (<= 0 |ULTIMATE.start_main_~#s~0#1.base|)) (.cse11 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse12 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse13 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse14 (<= 0 |#StackHeapBarrier|)) (.cse15 (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|)) (.cse16 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) .cse4 .cse5 .cse6 .cse7 .cse8 (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) .cse16) (and (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.offset|) .cse0 (<= |ULTIMATE.start_dll_remove_last_#in~head#1.offset| 0) .cse1 (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_last_~head#1.offset| 0) .cse2 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) .cse3 (<= 0 |ULTIMATE.start_dll_remove_last_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_last_#in~head#1.offset|) .cse4 .cse5 (= |ULTIMATE.start_main_~#s~0#1.offset| 0) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= |ULTIMATE.start_main_~i~0#1| 1) .cse14 .cse15 .cse16))) [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 599) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 617) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-11-22 02:21:29,561 INFO L899 garLoopResultBuilder]: For program point L599-1(line 599) no Hoare annotation was computed. [2022-11-22 02:21:29,562 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_dll_create_~data#1|)) (.cse1 (<= 2 |ULTIMATE.start_dll_create_#in~len#1|)) (.cse2 (<= |ULTIMATE.start_dll_create_~data#1| 1)) (.cse3 (= |ULTIMATE.start_main_~data~0#1| 1)) (.cse4 (<= |ULTIMATE.start_dll_create_#in~len#1| 2)) (.cse5 (<= 1 |ULTIMATE.start_dll_create_#in~data#1|)) (.cse6 (= |ULTIMATE.start_main_~len~0#1| 2)) (.cse7 (<= |ULTIMATE.start_main_~#s~0#1.offset| 0)) (.cse8 (= |#NULL.offset| 0)) (.cse9 (<= 0 |ULTIMATE.start_main_~#s~0#1.base|)) (.cse10 (<= |ULTIMATE.start_dll_create_#in~data#1| 1)) (.cse11 (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse12 (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|)) (.cse13 (<= 0 |#StackHeapBarrier|)) (.cse14 (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|)) (.cse15 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (<= |ULTIMATE.start_dll_create_~len#1| 1) .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 (= 2 |ULTIMATE.start_dll_create_~len#1|) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2022-11-22 02:21:29,562 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 623) no Hoare annotation was computed. [2022-11-22 02:21:29,562 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 616) no Hoare annotation was computed. [2022-11-22 02:21:29,565 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:29,569 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:21:29,598 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:21:29,605 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:21:29,607 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:21:29,613 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:21:29,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:21:29 BoogieIcfgContainer [2022-11-22 02:21:29,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:21:29,617 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:21:29,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:21:29,618 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:21:29,618 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:04" (3/4) ... [2022-11-22 02:21:29,622 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:21:29,627 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2022-11-22 02:21:29,632 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-22 02:21:29,634 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 02:21:29,634 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:21:29,634 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:21:29,663 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((1 <= data && 2 <= \old(len)) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) || ((((((((((((((((1 <= data && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) [2022-11-22 02:21:29,663 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((1 <= data && 2 <= \old(len)) && \result <= 0) && data <= 1) && \result == #memory_$Pointer$[s][s]) && head == \result) && #memory_$Pointer$[s][s] == \result) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && len == i + 1) && 0 <= s) && #NULL == 0) || (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && 0 <= i + 2147483648) && data <= 1) && 0 <= head) && 0 <= head) && data == 1) && \old(len) <= 2) && s == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && #NULL == 0) [2022-11-22 02:21:29,665 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && data <= 1) && 0 <= head) && 0 <= head) && 0 <= i) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && 0 <= s) && #NULL == 0 [2022-11-22 02:21:29,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:21:29,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:21:29,687 INFO L158 Benchmark]: Toolchain (without parser) took 26601.82ms. Allocated memory was 138.4MB in the beginning and 362.8MB in the end (delta: 224.4MB). Free memory was 74.7MB in the beginning and 324.3MB in the end (delta: -249.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:21:29,687 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:21:29,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 593.66ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 74.4MB in the beginning and 130.9MB in the end (delta: -56.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:21:29,694 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.53ms. Allocated memory is still 174.1MB. Free memory was 130.9MB in the beginning and 128.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:21:29,694 INFO L158 Benchmark]: Boogie Preprocessor took 57.46ms. Allocated memory is still 174.1MB. Free memory was 128.8MB in the beginning and 127.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:21:29,694 INFO L158 Benchmark]: RCFGBuilder took 662.98ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 108.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:21:29,696 INFO L158 Benchmark]: TraceAbstraction took 25152.84ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 108.4MB in the beginning and 327.4MB in the end (delta: -219.0MB). Peak memory consumption was 183.6MB. Max. memory is 16.1GB. [2022-11-22 02:21:29,696 INFO L158 Benchmark]: Witness Printer took 69.17ms. Allocated memory is still 362.8MB. Free memory was 327.4MB in the beginning and 324.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:21:29,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 138.4MB. Free memory is still 107.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 593.66ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 74.4MB in the beginning and 130.9MB in the end (delta: -56.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.53ms. Allocated memory is still 174.1MB. Free memory was 130.9MB in the beginning and 128.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.46ms. Allocated memory is still 174.1MB. Free memory was 128.8MB in the beginning and 127.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 662.98ms. Allocated memory is still 174.1MB. Free memory was 127.2MB in the beginning and 108.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25152.84ms. Allocated memory was 174.1MB in the beginning and 362.8MB in the end (delta: 188.7MB). Free memory was 108.4MB in the beginning and 327.4MB in the end (delta: -219.0MB). Peak memory consumption was 183.6MB. Max. memory is 16.1GB. * Witness Printer took 69.17ms. Allocated memory is still 362.8MB. Free memory was 327.4MB in the beginning and 324.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 623]: 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, 27 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 25.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 314 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 183 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 131 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 124 SyntacticMatches, 12 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 18 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 8 PreInvPairs, 15 NumberOfFragments, 352 HoareAnnotationTreeSize, 8 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 1197 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 457 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1097 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 24/38 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: 12.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 36, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 94, TOOLS_POST_TIME: 11.8s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 94, TOOLS_QUANTIFIERELIM_TIME: 11.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 162, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 11, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 36, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME: 10.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 10.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 11, 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: 344, DAG_COMPRESSION_RETAINED_NODES: 125, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: ((((((((((((((((1 <= data && 2 <= \old(len)) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && len <= 1) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) || ((((((((((((((((1 <= data && 2 <= \old(len)) && 2 == len) && data <= 1) && data == 1) && \old(len) <= 2) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= s) && #NULL == 0) - InvariantResult [Line: 623]: Loop Invariant [2022-11-22 02:21:29,723 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:21:29,723 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2022-11-22 02:21:29,724 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-22 02:21:29,725 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((((((((((((1 <= data && 2 <= \old(len)) && \result <= 0) && data <= 1) && \result == #memory_$Pointer$[s][s]) && head == \result) && #memory_$Pointer$[s][s] == \result) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && len == i + 1) && 0 <= s) && #NULL == 0) || (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && 0 <= i + 2147483648) && data <= 1) && 0 <= head) && 0 <= head) && data == 1) && \old(len) <= 2) && s == 0) && len <= 0) && 1 <= \old(data)) && len == 2) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && #NULL == 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((0 <= head && 1 <= data) && head <= 0) && 2 <= \old(len)) && 0 <= head) && head <= 0) && \result <= 0) && data <= 1) && 0 <= head) && 0 <= head) && 0 <= i) && data == 1) && \old(len) <= 2) && len <= 0) && 1 <= \old(data)) && len == 2) && s <= 0) && #NULL == 0) && 0 <= s) && \old(data) <= 1) && head <= 0) && 0 <= head) && i <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && 0 <= \result) && 0 <= s) && #NULL == 0 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 02:21:29,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae25347-99f4-453b-9991-56652b817a24/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE