./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0 --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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- 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-e04fb08 [2022-11-16 16:06:07,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 16:06:07,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 16:06:07,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 16:06:07,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 16:06:07,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 16:06:07,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 16:06:07,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 16:06:07,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 16:06:07,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 16:06:07,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 16:06:07,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 16:06:07,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 16:06:07,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 16:06:07,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 16:06:07,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 16:06:07,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 16:06:07,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 16:06:07,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 16:06:07,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 16:06:07,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 16:06:07,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 16:06:07,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 16:06:07,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 16:06:07,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 16:06:07,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 16:06:07,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 16:06:07,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 16:06:07,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 16:06:07,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 16:06:07,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 16:06:07,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 16:06:07,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 16:06:07,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 16:06:07,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 16:06:07,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 16:06:07,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 16:06:07,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 16:06:07,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 16:06:07,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 16:06:07,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 16:06:07,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 16:06:07,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 16:06:07,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 16:06:07,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 16:06:07,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 16:06:07,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 16:06:07,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 16:06:07,941 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 16:06:07,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 16:06:07,941 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 16:06:07,941 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 16:06:07,942 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 16:06:07,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 16:06:07,942 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 16:06:07,942 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 16:06:07,943 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 16:06:07,943 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 16:06:07,943 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 16:06:07,944 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 16:06:07,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 16:06:07,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 16:06:07,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 16:06:07,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 16:06:07,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 16:06:07,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 16:06:07,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 16:06:07,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 16:06:07,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 16:06:07,947 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 16:06:07,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 16:06:07,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 16:06:07,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 16:06:07,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 16:06:07,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 16:06:07,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 16:06:07,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:06:07,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 16:06:07,949 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 16:06:07,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 16:06:07,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 16:06:07,955 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 16:06:07,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 16:06:07,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 16:06:07,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 16:06:07,956 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_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2022-11-16 16:06:08,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 16:06:08,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 16:06:08,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 16:06:08,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 16:06:08,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 16:06:08,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2022-11-16 16:06:08,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/data/28d2ebfe2/e8abe47ba7b0499d83a0a90037b44e6c/FLAG3bf1d8b3d [2022-11-16 16:06:08,944 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 16:06:08,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2022-11-16 16:06:08,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/data/28d2ebfe2/e8abe47ba7b0499d83a0a90037b44e6c/FLAG3bf1d8b3d [2022-11-16 16:06:09,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/data/28d2ebfe2/e8abe47ba7b0499d83a0a90037b44e6c [2022-11-16 16:06:09,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 16:06:09,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 16:06:09,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 16:06:09,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 16:06:09,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 16:06:09,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1eb5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09, skipping insertion in model container [2022-11-16 16:06:09,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 16:06:09,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 16:06:09,664 WARN L229 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_2529d4d4-932c-4797-aa1c-f938054e565d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2022-11-16 16:06:09,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:06:09,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 16:06:09,803 WARN L229 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_2529d4d4-932c-4797-aa1c-f938054e565d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2022-11-16 16:06:09,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 16:06:09,888 INFO L208 MainTranslator]: Completed translation [2022-11-16 16:06:09,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09 WrapperNode [2022-11-16 16:06:09,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 16:06:09,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 16:06:09,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 16:06:09,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 16:06:09,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,963 INFO L138 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778 [2022-11-16 16:06:09,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 16:06:09,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 16:06:09,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 16:06:09,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 16:06:09,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:09,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 16:06:10,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 16:06:10,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 16:06:10,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 16:06:10,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (1/1) ... [2022-11-16 16:06:10,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 16:06:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:10,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 16:06:10,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 16:06:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 16:06:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 16:06:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 16:06:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 16:06:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 16:06:10,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 16:06:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 16:06:10,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 16:06:10,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 16:06:10,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 16:06:10,481 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 16:06:10,484 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 16:06:11,708 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 16:06:11,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 16:06:11,998 INFO L300 CfgBuilder]: Removed 40 assume(true) statements. [2022-11-16 16:06:12,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:06:12 BoogieIcfgContainer [2022-11-16 16:06:12,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 16:06:12,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 16:06:12,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 16:06:12,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 16:06:12,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:06:09" (1/3) ... [2022-11-16 16:06:12,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b94b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:06:12, skipping insertion in model container [2022-11-16 16:06:12,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:09" (2/3) ... [2022-11-16 16:06:12,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b94b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:06:12, skipping insertion in model container [2022-11-16 16:06:12,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 04:06:12" (3/3) ... [2022-11-16 16:06:12,009 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-2.i [2022-11-16 16:06:12,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 16:06:12,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 16:06:12,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 16:06:12,083 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;@1e77517d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 16:06:12,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 16:06:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 16:06:12,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 16:06:12,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:12,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 16:06:12,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 16:06:12,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:12,099 INFO L85 PathProgramCache]: Analyzing trace with hash 656327, now seen corresponding path program 1 times [2022-11-16 16:06:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:12,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318492555] [2022-11-16 16:06:12,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:12,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:12,212 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:12,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581488455] [2022-11-16 16:06:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:12,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:12,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:12,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:12,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 16:06:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:12,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:06:12,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:06:12,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:06:12,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:12,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318492555] [2022-11-16 16:06:12,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:06:12,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581488455] [2022-11-16 16:06:12,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581488455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:12,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:06:12,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 16:06:12,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883694592] [2022-11-16 16:06:12,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:12,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:06:12,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:06:12,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:06:12,525 INFO L87 Difference]: Start difference. First operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:06:14,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:06:16,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:06:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:16,245 INFO L93 Difference]: Finished difference Result 258 states and 438 transitions. [2022-11-16 16:06:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:06:16,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 16:06:16,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:16,263 INFO L225 Difference]: With dead ends: 258 [2022-11-16 16:06:16,264 INFO L226 Difference]: Without dead ends: 141 [2022-11-16 16:06:16,266 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 [2022-11-16 16:06:16,270 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 54 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:16,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 234 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 16:06:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-16 16:06:16,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 89. [2022-11-16 16:06:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.318840579710145) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 16:06:16,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2022-11-16 16:06:16,324 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 3 [2022-11-16 16:06:16,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:16,325 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2022-11-16 16:06:16,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 16:06:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2022-11-16 16:06:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 16:06:16,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:16,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:16,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 16:06:16,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-16 16:06:16,536 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 16:06:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2085923058, now seen corresponding path program 1 times [2022-11-16 16:06:16,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:16,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094870454] [2022-11-16 16:06:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:16,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:16,737 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:16,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232920537] [2022-11-16 16:06:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:16,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:16,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:16,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:16,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 16:06:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:17,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:06:17,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:17,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:06:17,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:06:17,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:17,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094870454] [2022-11-16 16:06:17,542 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:06:17,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232920537] [2022-11-16 16:06:17,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232920537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:17,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:06:17,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:06:17,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223763839] [2022-11-16 16:06:17,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:17,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:06:17,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:17,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:06:17,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:06:17,546 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-11-16 16:06:20,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 16:06:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:20,083 INFO L93 Difference]: Finished difference Result 141 states and 177 transitions. [2022-11-16 16:06:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 16:06:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 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) Word has length 27 [2022-11-16 16:06:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:20,090 INFO L225 Difference]: With dead ends: 141 [2022-11-16 16:06:20,090 INFO L226 Difference]: Without dead ends: 140 [2022-11-16 16:06:20,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:06:20,091 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 31 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:20,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 318 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 16:06:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-16 16:06:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2022-11-16 16:06:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 16:06:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2022-11-16 16:06:20,108 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 27 [2022-11-16 16:06:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:20,108 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2022-11-16 16:06:20,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 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) [2022-11-16 16:06:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2022-11-16 16:06:20,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-16 16:06:20,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:20,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:20,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 16:06:20,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:20,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 16:06:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash 239105766, now seen corresponding path program 1 times [2022-11-16 16:06:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754739667] [2022-11-16 16:06:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:20,483 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:20,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582905523] [2022-11-16 16:06:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:20,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:20,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:20,485 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:20,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 16:06:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:21,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 16:06:21,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:06:21,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:06:21,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:21,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754739667] [2022-11-16 16:06:21,387 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:06:21,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582905523] [2022-11-16 16:06:21,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582905523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:21,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:06:21,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:06:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921999984] [2022-11-16 16:06:21,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:21,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:06:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:06:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:06:21,391 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-11-16 16:06:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:21,841 INFO L93 Difference]: Finished difference Result 135 states and 171 transitions. [2022-11-16 16:06:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:06:21,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) Word has length 28 [2022-11-16 16:06:21,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:21,847 INFO L225 Difference]: With dead ends: 135 [2022-11-16 16:06:21,847 INFO L226 Difference]: Without dead ends: 134 [2022-11-16 16:06:21,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:06:21,851 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:21,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 207 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 16:06:21,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-16 16:06:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-16 16:06:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 125 states have internal predecessors, (138), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 16:06:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-11-16 16:06:21,866 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 28 [2022-11-16 16:06:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:21,867 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-11-16 16:06:21,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2022-11-16 16:06:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-11-16 16:06:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-16 16:06:21,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:21,868 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:21,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 16:06:22,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:22,078 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 16:06:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2147395544, now seen corresponding path program 1 times [2022-11-16 16:06:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:22,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179219295] [2022-11-16 16:06:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:22,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:22,214 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:22,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844138854] [2022-11-16 16:06:22,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:22,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:22,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:22,219 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:22,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 16:06:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:23,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:06:23,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:06:23,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:06:23,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179219295] [2022-11-16 16:06:23,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:06:23,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844138854] [2022-11-16 16:06:23,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844138854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:23,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:06:23,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 16:06:23,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526043824] [2022-11-16 16:06:23,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:23,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 16:06:23,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:23,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 16:06:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:06:23,309 INFO L87 Difference]: Start difference. First operand 134 states and 170 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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) [2022-11-16 16:06:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:24,241 INFO L93 Difference]: Finished difference Result 240 states and 308 transitions. [2022-11-16 16:06:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 16:06:24,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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) Word has length 30 [2022-11-16 16:06:24,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:24,246 INFO L225 Difference]: With dead ends: 240 [2022-11-16 16:06:24,246 INFO L226 Difference]: Without dead ends: 132 [2022-11-16 16:06:24,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 16:06:24,248 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 11 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:24,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 191 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 16:06:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-16 16:06:24,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-16 16:06:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.2272727272727273) internal successors, (135), 123 states have internal predecessors, (135), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 16:06:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-11-16 16:06:24,264 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 30 [2022-11-16 16:06:24,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:24,264 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-11-16 16:06:24,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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) [2022-11-16 16:06:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-11-16 16:06:24,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-16 16:06:24,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:24,266 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:24,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 16:06:24,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:24,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-16 16:06:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1323555771, now seen corresponding path program 1 times [2022-11-16 16:06:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:24,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252561551] [2022-11-16 16:06:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:24,554 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:24,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571097325] [2022-11-16 16:06:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:24,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:24,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:24,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 16:06:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:06:49,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 16:06:49,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:06:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 16:06:49,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 16:06:49,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:06:49,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252561551] [2022-11-16 16:06:49,834 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:06:49,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571097325] [2022-11-16 16:06:49,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571097325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 16:06:49,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 16:06:49,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 16:06:49,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936223262] [2022-11-16 16:06:49,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 16:06:49,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 16:06:49,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 16:06:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 16:06:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 16:06:49,837 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 16:06:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 16:06:50,630 INFO L93 Difference]: Finished difference Result 246 states and 320 transitions. [2022-11-16 16:06:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 16:06:50,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-11-16 16:06:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 16:06:50,635 INFO L225 Difference]: With dead ends: 246 [2022-11-16 16:06:50,635 INFO L226 Difference]: Without dead ends: 134 [2022-11-16 16:06:50,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 16:06:50,637 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 16:06:50,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 299 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 16:06:50,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-11-16 16:06:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-11-16 16:06:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 125 states have internal predecessors, (137), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-16 16:06:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2022-11-16 16:06:50,652 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 43 [2022-11-16 16:06:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 16:06:50,652 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2022-11-16 16:06:50,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 16:06:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2022-11-16 16:06:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-16 16:06:50,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 16:06:50,654 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 16:06:50,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 16:06:50,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:50,867 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)] === [2022-11-16 16:06:50,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 16:06:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1800001479, now seen corresponding path program 1 times [2022-11-16 16:06:50,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 16:06:50,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727528717] [2022-11-16 16:06:50,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:50,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 16:06:50,927 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 16:06:50,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598347974] [2022-11-16 16:06:50,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 16:06:50,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 16:06:50,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 16:06:50,929 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 16:06:50,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2529d4d4-932c-4797-aa1c-f938054e565d/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 16:07:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 16:07:28,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 16:07:28,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 16:07:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:07:28,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 16:07:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 16:07:28,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 16:07:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727528717] [2022-11-16 16:07:28,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 16:07:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598347974] [2022-11-16 16:07:28,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598347974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 16:07:28,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1383342273] [2022-11-16 16:07:28,745 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-16 16:07:28,745 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 16:07:28,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 16:07:28,755 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 16:07:28,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 16:07:28,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 16:07:28,903 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 16:07:28,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-16 16:07:28,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 16:07:28,936 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 16:07:28,936 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 1 case distinctions, treesize of input 26 treesize of output 32 [2022-11-16 16:07:28,981 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 16:07:28,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 16:07:29,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 16:07:29,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-16 16:07:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,048 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 37 treesize of output 42 [2022-11-16 16:07:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 16:07:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-16 16:07:29,621 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 29 treesize of output 19 [2022-11-16 16:07:29,661 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 29 treesize of output 19 [2022-11-16 16:07:29,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 16:07:29,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-16 16:07:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-16 16:07:29,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 16:07:29,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:29,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 16:07:29,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 16:07:29,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 16:07:30,079 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 16:07:30,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 16:07:30,102 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 28 treesize of output 36 [2022-11-16 16:07:30,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:07:30,299 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 16 treesize of output 12 [2022-11-16 16:07:30,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:07:30,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 16:07:30,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 16:07:30,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-16 16:07:30,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:07:30,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 16:07:30,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 16:07:30,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 16:07:30,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 16:07:30,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 16:07:30,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:07:30,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 16:07:30,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-16 16:07:30,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 16:07:32,073 INFO L217 Elim1Store]: Index analysis took 1044 ms [2022-11-16 16:07:36,384 INFO L321 Elim1Store]: treesize reduction 128, result has 22.4 percent of original size [2022-11-16 16:07:36,385 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 10752687 treesize of output 10752705 [2022-11-16 16:07:37,518 INFO L217 Elim1Store]: Index analysis took 890 ms [2022-11-16 16:07:37,540 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-16 16:07:37,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 10752682 treesize of output 10752685 [2022-11-16 16:07:49,961 WARN L233 SmtUtils]: Spent 12.28s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:07:49,962 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-16 16:07:49,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-16 16:07:50,338 INFO L217 Elim1Store]: Index analysis took 166 ms [2022-11-16 16:08:12,506 WARN L233 SmtUtils]: Spent 22.16s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:08:12,507 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 16:08:12,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1819 [2022-11-16 16:08:14,439 INFO L217 Elim1Store]: Index analysis took 1036 ms [2022-11-16 16:08:50,172 WARN L233 SmtUtils]: Spent 34.84s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 16:08:50,173 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-16 16:08:50,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-16 16:08:51,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:51,819 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-16 16:08:51,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:08:51,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:51,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-16 16:08:52,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:52,059 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:52,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:52,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 212 [2022-11-16 16:08:52,265 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:08:52,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:08:52,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 16:08:52,401 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 42 treesize of output 30 [2022-11-16 16:08:53,617 INFO L217 Elim1Store]: Index analysis took 870 ms [2022-11-16 16:08:54,548 INFO L321 Elim1Store]: treesize reduction 36, result has 33.3 percent of original size [2022-11-16 16:08:54,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 113 [2022-11-16 16:08:54,721 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:08:54,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-16 16:08:55,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:08:55,132 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-16 16:08:55,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2022-11-16 16:08:57,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:08:57,102 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 17 treesize of output 11 [2022-11-16 16:08:57,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:08:57,565 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 17 treesize of output 11 [2022-11-16 16:09:39,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:09:39,490 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 19 treesize of output 13 [2022-11-16 16:10:17,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:10:17,926 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 19 treesize of output 13 [2022-11-16 16:11:10,340 WARN L233 SmtUtils]: Spent 6.89s on a formula simplification that was a NOOP. DAG size: 27013 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-16 16:13:21,154 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:13:21,644 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 125 treesize of output 49 [2022-11-16 16:13:21,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:21,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:13:21,970 INFO L217 Elim1Store]: Index analysis took 126 ms [2022-11-16 16:13:21,971 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 100 treesize of output 54 [2022-11-16 16:14:23,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:23,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:23,174 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 380 treesize of output 194 [2022-11-16 16:14:23,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:14:23,310 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 541 treesize of output 187 [2022-11-16 16:14:23,599 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 16:14:27,510 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 16:14:27,510 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 649 treesize of output 574 [2022-11-16 16:14:27,588 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 21 [2022-11-16 16:14:29,859 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-16 16:14:29,859 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 1129 treesize of output 1042 [2022-11-16 16:14:29,930 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 23 treesize of output 15 [2022-11-16 16:15:20,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:20,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:15:20,636 INFO L217 Elim1Store]: Index analysis took 126 ms [2022-11-16 16:15:20,637 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 44 treesize of output 26 [2022-11-16 16:15:20,748 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 21