./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/pcomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/pcomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:05:13,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:05:13,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:05:13,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:05:13,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:05:13,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:05:13,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:05:13,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:05:13,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:05:13,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:05:13,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:05:13,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:05:13,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:05:13,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:05:13,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:05:13,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:05:13,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:05:13,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:05:13,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:05:13,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:05:14,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:05:14,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:05:14,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:05:14,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:05:14,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:05:14,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:05:14,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:05:14,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:05:14,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:05:14,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:05:14,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:05:14,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:05:14,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:05:14,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:05:14,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:05:14,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:05:14,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:05:14,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:05:14,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:05:14,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:05:14,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:05:14,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:05:14,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:05:14,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:05:14,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:05:14,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:05:14,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:05:14,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:05:14,084 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:05:14,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:05:14,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:05:14,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:05:14,087 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:05:14,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:05:14,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:05:14,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:05:14,088 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:05:14,088 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:05:14,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:05:14,089 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:05:14,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:05:14,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:05:14,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:05:14,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:05:14,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:05:14,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:05:14,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:05:14,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:05:14,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:05:14,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:05:14,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:05:14,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:05:14,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:05:14,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:05:14,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:05:14,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:05:14,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:05:14,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:05:14,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:05:14,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:05:14,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:05:14,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:05:14,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:05:14,096 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 [2021-11-25 19:05:14,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:05:14,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:05:14,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:05:14,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:05:14,375 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:05:14,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-fpi/pcomp.c [2021-11-25 19:05:14,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/data/f24f72117/8954c14f46c34f358f07f1801499f1f1/FLAGb02a94a4a [2021-11-25 19:05:14,941 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:05:14,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/sv-benchmarks/c/array-fpi/pcomp.c [2021-11-25 19:05:14,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/data/f24f72117/8954c14f46c34f358f07f1801499f1f1/FLAGb02a94a4a [2021-11-25 19:05:15,282 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/data/f24f72117/8954c14f46c34f358f07f1801499f1f1 [2021-11-25 19:05:15,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:05:15,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:05:15,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:05:15,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:05:15,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:05:15,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c70a000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15, skipping insertion in model container [2021-11-25 19:05:15,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:05:15,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:05:15,495 WARN L230 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_c716a3db-2701-4b1e-a40f-bc14443b6ddf/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-25 19:05:15,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:05:15,531 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:05:15,553 WARN L230 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_c716a3db-2701-4b1e-a40f-bc14443b6ddf/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-25 19:05:15,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:05:15,581 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:05:15,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15 WrapperNode [2021-11-25 19:05:15,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:05:15,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:05:15,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:05:15,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:05:15,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,640 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2021-11-25 19:05:15,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:05:15,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:05:15,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:05:15,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:05:15,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:05:15,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:05:15,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:05:15,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:05:15,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (1/1) ... [2021-11-25 19:05:15,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:05:15,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:15,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:05:15,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:05:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:05:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:05:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:05:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:05:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:05:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:05:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:05:15,932 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:05:15,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:05:16,110 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:05:16,154 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:05:16,155 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:05:16,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:16 BoogieIcfgContainer [2021-11-25 19:05:16,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:05:16,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:05:16,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:05:16,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:05:16,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:05:15" (1/3) ... [2021-11-25 19:05:16,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4370cdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:05:16, skipping insertion in model container [2021-11-25 19:05:16,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:15" (2/3) ... [2021-11-25 19:05:16,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4370cdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:05:16, skipping insertion in model container [2021-11-25 19:05:16,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:16" (3/3) ... [2021-11-25 19:05:16,180 INFO L111 eAbstractionObserver]: Analyzing ICFG pcomp.c [2021-11-25 19:05:16,191 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:05:16,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:05:16,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:05:16,279 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:05:16,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:05:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-25 19:05:16,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:05:16,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:16,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:16,327 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:16,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:16,334 INFO L85 PathProgramCache]: Analyzing trace with hash 697271499, now seen corresponding path program 1 times [2021-11-25 19:05:16,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:16,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565284426] [2021-11-25 19:05:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:16,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:16,592 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:16,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554825034] [2021-11-25 19:05:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:16,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:16,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:16,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:05:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:16,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 19:05:16,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:17,009 INFO L354 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2021-11-25 19:05:17,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 182 [2021-11-25 19:05:17,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:17,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:17,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:18,794 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:18,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 31 [2021-11-25 19:05:18,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:19,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2021-11-25 19:05:19,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:19,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 19:05:19,291 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:05:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:19,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:05:19,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565284426] [2021-11-25 19:05:19,390 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:19,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554825034] [2021-11-25 19:05:19,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554825034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:19,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:19,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:05:19,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143337202] [2021-11-25 19:05:19,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:19,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:05:19,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:05:19,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:05:19,437 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:19,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:19,584 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2021-11-25 19:05:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:05:19,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 19:05:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:19,598 INFO L225 Difference]: With dead ends: 37 [2021-11-25 19:05:19,599 INFO L226 Difference]: Without dead ends: 22 [2021-11-25 19:05:19,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:05:19,612 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:19,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-25 19:05:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2021-11-25 19:05:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2021-11-25 19:05:19,643 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 8 [2021-11-25 19:05:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:19,644 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-11-25 19:05:19,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2021-11-25 19:05:19,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:05:19,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:19,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:19,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:19,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 19:05:19,860 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:19,861 INFO L85 PathProgramCache]: Analyzing trace with hash 131371694, now seen corresponding path program 1 times [2021-11-25 19:05:19,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:19,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727592365] [2021-11-25 19:05:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:19,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:19,918 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:19,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492209564] [2021-11-25 19:05:19,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:19,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:19,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:19,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:19,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:05:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:20,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 19:05:20,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:20,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:05:20,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:20,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727592365] [2021-11-25 19:05:20,044 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:20,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492209564] [2021-11-25 19:05:20,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492209564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:20,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:20,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 19:05:20,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042742671] [2021-11-25 19:05:20,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:20,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 19:05:20,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:20,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 19:05:20,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:05:20,048 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:20,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:20,143 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2021-11-25 19:05:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:05:20,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:05:20,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:20,144 INFO L225 Difference]: With dead ends: 36 [2021-11-25 19:05:20,144 INFO L226 Difference]: Without dead ends: 29 [2021-11-25 19:05:20,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-25 19:05:20,146 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:20,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-25 19:05:20,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2021-11-25 19:05:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-11-25 19:05:20,152 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2021-11-25 19:05:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:20,153 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-11-25 19:05:20,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-25 19:05:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:05:20,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:20,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:20,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:20,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:20,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -197136011, now seen corresponding path program 1 times [2021-11-25 19:05:20,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:20,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696634768] [2021-11-25 19:05:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:20,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:20,421 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:20,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9510078] [2021-11-25 19:05:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:20,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:20,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:20,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:20,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:05:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:20,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 19:05:20,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:20,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:20,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:20,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696634768] [2021-11-25 19:05:20,642 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:20,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9510078] [2021-11-25 19:05:20,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9510078] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:20,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [90566863] [2021-11-25 19:05:20,683 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:05:20,684 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:20,688 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:20,693 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:20,694 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:20,985 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:05:20,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:05:21,121 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:05:21,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:05:21,389 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:21,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:21,419 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:21,429 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:21,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:21,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:21,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:21,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:21,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:21,528 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:21,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:05:21,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:21,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:21,615 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:22,072 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '288#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= ~N~0 1) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:05:22,072 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:22,073 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:22,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-25 19:05:22,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349363243] [2021-11-25 19:05:22,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:22,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:05:22,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:05:22,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:05:22,075 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:22,200 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-25 19:05:22,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:05:22,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:05:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:22,201 INFO L225 Difference]: With dead ends: 33 [2021-11-25 19:05:22,201 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 19:05:22,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:05:22,204 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:22,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 22 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 19:05:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-11-25 19:05:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-11-25 19:05:22,210 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 9 [2021-11-25 19:05:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:22,211 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-25 19:05:22,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-25 19:05:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:05:22,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:22,212 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:22,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:22,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:22,431 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:22,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1958511373, now seen corresponding path program 1 times [2021-11-25 19:05:22,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:22,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853078051] [2021-11-25 19:05:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:22,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:22,453 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:22,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503448584] [2021-11-25 19:05:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:22,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:22,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:22,469 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:22,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:05:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:22,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:05:22,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:22,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:22,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:05:22,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:22,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853078051] [2021-11-25 19:05:22,608 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:22,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503448584] [2021-11-25 19:05:22,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503448584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:05:22,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:05:22,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:05:22,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602098879] [2021-11-25 19:05:22,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:05:22,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:05:22,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:22,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:05:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:05:22,611 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:22,701 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-25 19:05:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 19:05:22,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 19:05:22,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:22,702 INFO L225 Difference]: With dead ends: 29 [2021-11-25 19:05:22,702 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 19:05:22,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-25 19:05:22,704 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:22,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:22,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 19:05:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-11-25 19:05:22,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-25 19:05:22,708 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 11 [2021-11-25 19:05:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:22,709 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-25 19:05:22,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:22,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-25 19:05:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:05:22,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:22,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:22,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:22,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-25 19:05:22,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1012980313, now seen corresponding path program 1 times [2021-11-25 19:05:22,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:22,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195389649] [2021-11-25 19:05:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:22,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:22,964 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:22,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901116960] [2021-11-25 19:05:22,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:22,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:22,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:22,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:22,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:05:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:23,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-25 19:05:23,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:23,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-25 19:05:23,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:23,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:23,136 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 19:05:23,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2021-11-25 19:05:23,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:23,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:05:23,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:05:23,211 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-25 19:05:23,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:05:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:23,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:23,428 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_267) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:05:23,457 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_267 (Array Int Int)) (v_ArrVal_266 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_266) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_267) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:05:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 19:05:23,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:23,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195389649] [2021-11-25 19:05:23,483 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:23,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901116960] [2021-11-25 19:05:23,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901116960] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:23,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637084920] [2021-11-25 19:05:23,502 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:05:23,503 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:23,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:23,503 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:23,504 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:23,762 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:05:23,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:05:23,865 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:05:23,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:05:24,092 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:24,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:24,112 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:24,114 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,211 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:24,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:05:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:24,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,285 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:24,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,377 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:05:24,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:05:24,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,438 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:24,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,501 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:24,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,572 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,657 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:05:24,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 157 [2021-11-25 19:05:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:24,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:24,723 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:24,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:24,759 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:25,139 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '549#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:05:25,139 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:25,139 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:25,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-11-25 19:05:25,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214419071] [2021-11-25 19:05:25,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:25,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:05:25,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:25,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:05:25,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=174, Unknown=2, NotChecked=54, Total=272 [2021-11-25 19:05:25,141 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-25 19:05:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:25,365 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-25 19:05:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:05:25,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 19:05:25,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:25,367 INFO L225 Difference]: With dead ends: 29 [2021-11-25 19:05:25,367 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 19:05:25,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=274, Unknown=2, NotChecked=70, Total=420 [2021-11-25 19:05:25,369 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:25,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 42 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 72 Invalid, 0 Unknown, 46 Unchecked, 0.1s Time] [2021-11-25 19:05:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 19:05:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2021-11-25 19:05:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-25 19:05:25,374 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 11 [2021-11-25 19:05:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:25,375 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-25 19:05:25,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-25 19:05:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-25 19:05:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 19:05:25,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:25,376 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:25,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:25,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:25,593 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1328410336, now seen corresponding path program 2 times [2021-11-25 19:05:25,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:25,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151359546] [2021-11-25 19:05:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:25,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:25,626 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:25,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277468669] [2021-11-25 19:05:25,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:05:25,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:25,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:25,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:25,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:05:25,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 19:05:25,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:05:25,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:05:25,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:05:25,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:05:25,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:25,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151359546] [2021-11-25 19:05:25,806 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:25,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277468669] [2021-11-25 19:05:25,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277468669] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:25,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332695688] [2021-11-25 19:05:25,813 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:05:25,813 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:25,814 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:25,814 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:25,814 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:26,041 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:05:26,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:05:26,255 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:26,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:26,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:05:26,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,379 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:26,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:05:26,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:26,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,454 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:26,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,550 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:05:26,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:05:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,605 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,614 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:26,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:26,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,651 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:26,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:26,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,783 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:05:26,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 152 [2021-11-25 19:05:26,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:26,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:26,854 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:26,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:26,880 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:27,191 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '705#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:05:27,191 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:27,192 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:27,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 19:05:27,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779839202] [2021-11-25 19:05:27,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:27,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:05:27,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:05:27,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-25 19:05:27,194 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:27,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:27,351 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2021-11-25 19:05:27,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:05:27,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 19:05:27,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:27,353 INFO L225 Difference]: With dead ends: 48 [2021-11-25 19:05:27,353 INFO L226 Difference]: Without dead ends: 37 [2021-11-25 19:05:27,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-11-25 19:05:27,354 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:27,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-25 19:05:27,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 22. [2021-11-25 19:05:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 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) [2021-11-25 19:05:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-11-25 19:05:27,360 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 12 [2021-11-25 19:05:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:27,361 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-11-25 19:05:27,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2021-11-25 19:05:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 19:05:27,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:27,362 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:27,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:27,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:27,577 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:27,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1261411007, now seen corresponding path program 1 times [2021-11-25 19:05:27,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:27,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525494628] [2021-11-25 19:05:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:27,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:27,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:27,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439337878] [2021-11-25 19:05:27,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:27,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:27,614 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:27,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:05:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:27,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-25 19:05:27,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:27,865 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:27,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:05:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:27,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2021-11-25 19:05:27,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:27,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:27,945 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:27,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:05:27,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:27,997 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:27,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:05:28,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:28,048 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:28,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 32 [2021-11-25 19:05:28,225 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 19:05:28,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 30 [2021-11-25 19:05:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:28,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:42,067 WARN L227 SmtUtils]: Spent 13.67s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:05:42,766 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_402 (Array Int Int)) (v_ArrVal_403 Int)) (= (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_402))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_403))) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|)))) 1)) is different from false [2021-11-25 19:05:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-11-25 19:05:42,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:42,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525494628] [2021-11-25 19:05:42,798 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:42,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439337878] [2021-11-25 19:05:42,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439337878] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:42,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1899026190] [2021-11-25 19:05:42,801 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:05:42,801 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:42,802 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:42,802 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:42,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:43,019 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:43,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:43,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:05:43,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:05:43,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 106 [2021-11-25 19:05:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,311 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,316 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,355 INFO L354 Elim1Store]: treesize reduction 320, result has 0.3 percent of original size [2021-11-25 19:05:43,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 552 treesize of output 526 [2021-11-25 19:05:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:43,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,535 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:43,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:43,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,593 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,610 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:05:43,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:05:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,655 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:43,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,680 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:43,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:43,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,831 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:05:43,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 188 [2021-11-25 19:05:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:43,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:43,906 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:43,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:44,112 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:44,571 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '922#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:05:44,571 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:44,571 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:44,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 17 [2021-11-25 19:05:44,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986167513] [2021-11-25 19:05:44,572 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:44,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 19:05:44,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 19:05:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=397, Unknown=1, NotChecked=40, Total=506 [2021-11-25 19:05:44,574 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:44,934 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-25 19:05:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 19:05:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 19:05:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:44,935 INFO L225 Difference]: With dead ends: 29 [2021-11-25 19:05:44,935 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 19:05:44,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=104, Invalid=549, Unknown=1, NotChecked=48, Total=702 [2021-11-25 19:05:44,936 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:44,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 28 Unchecked, 0.2s Time] [2021-11-25 19:05:44,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 19:05:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-11-25 19:05:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-11-25 19:05:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-11-25 19:05:44,942 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 14 [2021-11-25 19:05:44,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:44,943 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-11-25 19:05:44,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-11-25 19:05:44,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 19:05:44,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:44,944 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:44,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:45,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:45,152 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash 970754635, now seen corresponding path program 3 times [2021-11-25 19:05:45,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:45,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804535320] [2021-11-25 19:05:45,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:45,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:45,188 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:45,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548390712] [2021-11-25 19:05:45,188 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:05:45,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:45,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:45,192 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:45,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 19:05:45,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:05:45,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:05:45,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-25 19:05:45,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:45,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2021-11-25 19:05:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:45,771 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 19:05:45,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 23 [2021-11-25 19:05:45,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:05:45,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:05:45,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:05:45,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:05:45,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:05:45,948 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-25 19:05:45,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:05:45,978 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-25 19:05:45,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 19:05:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:46,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:46,382 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_489) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:05:46,400 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_487 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_487) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_489) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:05:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 4 not checked. [2021-11-25 19:05:46,423 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:46,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804535320] [2021-11-25 19:05:46,423 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:46,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548390712] [2021-11-25 19:05:46,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548390712] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:46,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [231374969] [2021-11-25 19:05:46,426 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:05:46,427 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:46,427 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:46,427 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:46,428 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:46,603 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:46,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:46,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:05:46,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:05:46,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 106 [2021-11-25 19:05:46,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:46,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:46,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:46,919 INFO L354 Elim1Store]: treesize reduction 320, result has 0.3 percent of original size [2021-11-25 19:05:46,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 552 treesize of output 526 [2021-11-25 19:05:47,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,072 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:47,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:47,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,184 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:05:47,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 183 [2021-11-25 19:05:47,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,248 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,253 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:47,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:47,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,283 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:47,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:47,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,378 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:05:47,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:05:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:47,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:47,424 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:47,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:47,452 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:47,749 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1118#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:05:47,749 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:47,749 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:47,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2021-11-25 19:05:47,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309582385] [2021-11-25 19:05:47,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:47,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-25 19:05:47,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-25 19:05:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=280, Unknown=2, NotChecked=70, Total=420 [2021-11-25 19:05:47,751 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:48,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:48,041 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2021-11-25 19:05:48,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:05:48,042 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 19:05:48,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:48,043 INFO L225 Difference]: With dead ends: 55 [2021-11-25 19:05:48,043 INFO L226 Difference]: Without dead ends: 53 [2021-11-25 19:05:48,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=529, Unknown=2, NotChecked=98, Total=756 [2021-11-25 19:05:48,045 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 35 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:48,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 36 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 82 Invalid, 0 Unknown, 69 Unchecked, 0.1s Time] [2021-11-25 19:05:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-25 19:05:48,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 27. [2021-11-25 19:05:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-11-25 19:05:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-11-25 19:05:48,052 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 14 [2021-11-25 19:05:48,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:48,053 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-11-25 19:05:48,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:05:48,053 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2021-11-25 19:05:48,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 19:05:48,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:48,054 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:48,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-25 19:05:48,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:48,276 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:48,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1151666026, now seen corresponding path program 2 times [2021-11-25 19:05:48,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:48,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162212521] [2021-11-25 19:05:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:48,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:48,306 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:48,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366314924] [2021-11-25 19:05:48,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:05:48,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:48,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:48,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:48,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 19:05:48,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 19:05:48,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:05:48,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:05:48,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 19:05:48,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:48,531 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 19:05:48,531 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:48,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162212521] [2021-11-25 19:05:48,532 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:48,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366314924] [2021-11-25 19:05:48,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366314924] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:48,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2005764426] [2021-11-25 19:05:48,537 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:05:48,537 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:48,538 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:48,538 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:48,539 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:48,702 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:05:48,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:05:48,810 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:05:48,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:05:49,023 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:49,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:49,042 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:49,048 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:05:49,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:49,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,119 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:49,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:05:49,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:49,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,211 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:49,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:49,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,266 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,330 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:05:49,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 152 [2021-11-25 19:05:49,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,390 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,396 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:49,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:49,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,430 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:49,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,572 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:05:49,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 157 [2021-11-25 19:05:49,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:49,640 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:49,644 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:49,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:49,810 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:50,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1364#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:05:50,356 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:50,356 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:50,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 19:05:50,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629924868] [2021-11-25 19:05:50,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:50,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:05:50,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:50,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:05:50,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:05:50,358 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-11-25 19:05:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:50,562 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2021-11-25 19:05:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:05:50,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 19:05:50,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:50,564 INFO L225 Difference]: With dead ends: 56 [2021-11-25 19:05:50,564 INFO L226 Difference]: Without dead ends: 44 [2021-11-25 19:05:50,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:05:50,565 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:50,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-25 19:05:50,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 27. [2021-11-25 19:05:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 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) [2021-11-25 19:05:50,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2021-11-25 19:05:50,573 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 16 [2021-11-25 19:05:50,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:50,573 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2021-11-25 19:05:50,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-11-25 19:05:50,574 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2021-11-25 19:05:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 19:05:50,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:50,575 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:50,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:50,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:50,801 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash 592635563, now seen corresponding path program 4 times [2021-11-25 19:05:50,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:50,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201602025] [2021-11-25 19:05:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:50,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:50,853 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:50,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431728268] [2021-11-25 19:05:50,867 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:05:50,867 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:50,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:50,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:50,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 19:05:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:50,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:05:50,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:05:51,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:51,092 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 19:05:51,092 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201602025] [2021-11-25 19:05:51,093 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431728268] [2021-11-25 19:05:51,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431728268] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:51,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689309968] [2021-11-25 19:05:51,100 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:05:51,100 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:51,100 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:51,101 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:51,101 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:51,309 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:05:51,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:05:51,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:05:51,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:05:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2021-11-25 19:05:51,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:51,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:51,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,688 INFO L354 Elim1Store]: treesize reduction 268, result has 9.8 percent of original size [2021-11-25 19:05:51,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 516 treesize of output 527 [2021-11-25 19:05:51,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:05:51,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:51,938 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:51,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:51,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:51,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:51,985 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:51,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:52,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,009 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:52,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:05:52,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:52,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:52,151 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:05:52,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 188 [2021-11-25 19:05:52,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:52,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:52,223 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:52,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:05:52,248 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:52,669 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1608#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:05:52,670 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:52,670 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:52,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-25 19:05:52,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171866011] [2021-11-25 19:05:52,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:52,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:05:52,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:05:52,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-11-25 19:05:52,672 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-25 19:05:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:53,004 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2021-11-25 19:05:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 19:05:53,005 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 19:05:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:53,006 INFO L225 Difference]: With dead ends: 76 [2021-11-25 19:05:53,006 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 19:05:53,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2021-11-25 19:05:53,008 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:53,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 27 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:05:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 19:05:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 28. [2021-11-25 19:05:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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) [2021-11-25 19:05:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-11-25 19:05:53,014 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 16 [2021-11-25 19:05:53,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:53,014 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-11-25 19:05:53,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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) [2021-11-25 19:05:53,014 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-11-25 19:05:53,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:05:53,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:53,015 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:53,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:53,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 19:05:53,216 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:53,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1741655437, now seen corresponding path program 3 times [2021-11-25 19:05:53,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:53,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311656068] [2021-11-25 19:05:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:53,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:53,259 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:53,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991618509] [2021-11-25 19:05:53,272 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:05:53,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:53,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:53,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:53,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 19:05:53,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:05:53,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:05:53,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-25 19:05:53,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:53,981 INFO L354 Elim1Store]: treesize reduction 252, result has 37.8 percent of original size [2021-11-25 19:05:53,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 226 treesize of output 295 [2021-11-25 19:05:53,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-25 19:05:54,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-11-25 19:05:54,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-11-25 19:05:54,105 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:54,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 44 [2021-11-25 19:05:54,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 19:05:54,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:54,476 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:54,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 155 [2021-11-25 19:05:54,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:54,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2021-11-25 19:05:54,626 INFO L354 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-11-25 19:05:54,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 55 [2021-11-25 19:05:54,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2021-11-25 19:05:54,862 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:05:55,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:55,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:55,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:55,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-11-25 19:05:55,748 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:55,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 82 treesize of output 80 [2021-11-25 19:05:55,945 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:55,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 36 treesize of output 26 [2021-11-25 19:05:55,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,003 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:05:56,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2021-11-25 19:05:56,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2021-11-25 19:05:56,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:05:56,313 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:56,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 48 [2021-11-25 19:05:56,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:05:56,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:05:56,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:05:56,414 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:05:56,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 46 treesize of output 50 [2021-11-25 19:05:56,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 120 [2021-11-25 19:05:56,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 19:05:56,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-25 19:05:56,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,540 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-25 19:05:56,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 58 [2021-11-25 19:05:56,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:05:56,662 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:56,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:05:56,704 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:56,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:05:56,738 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:56,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:05:56,826 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:05:56,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 67 [2021-11-25 19:05:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:05:56,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 [2021-11-25 19:05:56,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,903 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:56,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:05:56,966 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:05:56,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 133 [2021-11-25 19:05:56,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:56,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 161 [2021-11-25 19:05:57,023 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:05:57,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 128 treesize of output 65 [2021-11-25 19:05:57,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:57,116 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:05:57,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 42 [2021-11-25 19:05:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:57,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:00,449 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_729 Int) (v_ArrVal_726 Int) (v_ArrVal_724 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_722))) (let ((.cse2 (store (store (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_724) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_726))) (let ((.cse0 (select (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse0 .cse1 (+ (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_729) .cse1)) 1)) is different from false [2021-11-25 19:06:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 19:06:00,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311656068] [2021-11-25 19:06:00,483 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:00,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991618509] [2021-11-25 19:06:00,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991618509] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:00,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1111012734] [2021-11-25 19:06:00,485 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:06:00,486 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:00,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:00,486 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:00,486 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:00,710 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:06:00,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:06:00,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:06:00,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:06:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2021-11-25 19:06:00,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:00,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:00,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:00,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:00,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,068 INFO L354 Elim1Store]: treesize reduction 263, result has 11.4 percent of original size [2021-11-25 19:06:01,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 514 treesize of output 532 [2021-11-25 19:06:01,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,227 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:01,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:06:01,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,371 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:06:01,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 188 [2021-11-25 19:06:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,443 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:01,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,475 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:01,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,563 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:06:01,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:06:01,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:01,620 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:01,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:01,769 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:02,291 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1920#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:06:02,291 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:02,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:02,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2021-11-25 19:06:02,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142196182] [2021-11-25 19:06:02,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:02,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-25 19:06:02,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:02,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-25 19:06:02,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=606, Unknown=1, NotChecked=50, Total=756 [2021-11-25 19:06:02,293 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2021-11-25 19:06:02,485 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_729 Int) (v_ArrVal_726 Int) (v_ArrVal_724 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (let ((.cse2 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_724) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_726))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse0 .cse1 (+ (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_729) .cse1)) 1)) (forall ((v_ArrVal_722 (Array Int Int)) (v_ArrVal_729 Int) (v_ArrVal_726 Int) (v_ArrVal_724 Int)) (= (let ((.cse4 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_722))) (let ((.cse5 (store (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_724) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_726))) (let ((.cse3 (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse3 .cse4 (+ (select .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_729) .cse4)) 1))) is different from false [2021-11-25 19:06:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:02,839 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2021-11-25 19:06:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 19:06:02,840 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 19:06:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:02,841 INFO L225 Difference]: With dead ends: 42 [2021-11-25 19:06:02,841 INFO L226 Difference]: Without dead ends: 40 [2021-11-25 19:06:02,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=160, Invalid=901, Unknown=3, NotChecked=126, Total=1190 [2021-11-25 19:06:02,843 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:02,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 72 Unchecked, 0.2s Time] [2021-11-25 19:06:02,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-25 19:06:02,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2021-11-25 19:06:02,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-11-25 19:06:02,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-11-25 19:06:02,852 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 17 [2021-11-25 19:06:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:02,852 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-11-25 19:06:02,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2021-11-25 19:06:02,853 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-11-25 19:06:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 19:06:02,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:02,854 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:02,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:03,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:03,073 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:03,073 INFO L85 PathProgramCache]: Analyzing trace with hash -23895584, now seen corresponding path program 5 times [2021-11-25 19:06:03,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:03,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638357267] [2021-11-25 19:06:03,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:03,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:03,104 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:03,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334380705] [2021-11-25 19:06:03,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:06:03,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:03,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:03,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:03,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 19:06:03,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:06:03,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:06:03,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:06:03,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 19:06:03,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:04,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 19:06:04,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:04,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638357267] [2021-11-25 19:06:04,073 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:04,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334380705] [2021-11-25 19:06:04,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334380705] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:04,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [996728657] [2021-11-25 19:06:04,078 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:06:04,078 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:04,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:04,079 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:04,079 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:04,253 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:06:04,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:06:04,451 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:06:04,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:06:04,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:06:04,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:04,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,579 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:04,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:06:04,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,659 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:04,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,726 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,755 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:06:04,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:06:04,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,803 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:04,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:04,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,838 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:04,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:04,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,933 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:06:04,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:06:04,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:04,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:04,990 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:04,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:05,019 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:05,354 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2181#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:06:05,354 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:05,354 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:05,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-25 19:06:05,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983776948] [2021-11-25 19:06:05,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:05,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:06:05,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:05,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:06:05,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2021-11-25 19:06:05,358 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:06:05,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:05,811 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2021-11-25 19:06:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-25 19:06:05,812 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 19:06:05,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:05,813 INFO L225 Difference]: With dead ends: 102 [2021-11-25 19:06:05,813 INFO L226 Difference]: Without dead ends: 87 [2021-11-25 19:06:05,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=929, Unknown=0, NotChecked=0, Total=1190 [2021-11-25 19:06:05,814 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 92 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:05,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 62 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:06:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-25 19:06:05,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 51. [2021-11-25 19:06:05,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 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) [2021-11-25 19:06:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2021-11-25 19:06:05,834 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 18 [2021-11-25 19:06:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:05,834 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2021-11-25 19:06:05,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:06:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2021-11-25 19:06:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 19:06:05,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:05,836 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:05,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:06,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:06,042 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:06,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash -190940936, now seen corresponding path program 4 times [2021-11-25 19:06:06,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:06,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453692283] [2021-11-25 19:06:06,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:06,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:06,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:06,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459197286] [2021-11-25 19:06:06,065 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:06:06,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:06,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:06,081 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:06,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 19:06:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:06:06,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:06:06,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:06,315 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 19:06:06,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:06,383 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 19:06:06,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453692283] [2021-11-25 19:06:06,383 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459197286] [2021-11-25 19:06:06,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459197286] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:06,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1319267921] [2021-11-25 19:06:06,385 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:06:06,385 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:06,385 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:06,386 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:06,386 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:06,580 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:06:06,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:06:06,857 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:06:06,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:06:06,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:06:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:06,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:06,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:06,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:06,974 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:06,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:06:07,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,054 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:07,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:06:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,214 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:06:07,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 152 [2021-11-25 19:06:07,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,279 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,285 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:07,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:07,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,318 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:07,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:06:07,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,458 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:06:07,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 152 [2021-11-25 19:06:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:07,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:07,532 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:07,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:07,728 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:08,263 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2577#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:06:08,263 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:08,263 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:08,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-25 19:06:08,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315693] [2021-11-25 19:06:08,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:08,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:06:08,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:08,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:06:08,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2021-11-25 19:06:08,265 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:06:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:08,553 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2021-11-25 19:06:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:06:08,554 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 19:06:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:08,555 INFO L225 Difference]: With dead ends: 81 [2021-11-25 19:06:08,555 INFO L226 Difference]: Without dead ends: 63 [2021-11-25 19:06:08,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:06:08,556 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 33 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:08,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 19:06:08,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-25 19:06:08,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 46. [2021-11-25 19:06:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 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) [2021-11-25 19:06:08,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-11-25 19:06:08,568 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 19 [2021-11-25 19:06:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:08,568 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-11-25 19:06:08,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:06:08,569 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-11-25 19:06:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:06:08,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:08,570 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:08,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:08,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 19:06:08,792 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:08,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1837651189, now seen corresponding path program 5 times [2021-11-25 19:06:08,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:08,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947247766] [2021-11-25 19:06:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:08,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:08,836 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:08,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149757618] [2021-11-25 19:06:08,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:06:08,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:08,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:08,839 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:08,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 19:06:09,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:06:09,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:06:09,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-25 19:06:09,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:09,432 INFO L354 Elim1Store]: treesize reduction 34, result has 50.7 percent of original size [2021-11-25 19:06:09,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 266 treesize of output 233 [2021-11-25 19:06:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:09,674 INFO L354 Elim1Store]: treesize reduction 252, result has 40.1 percent of original size [2021-11-25 19:06:09,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 217 treesize of output 331 [2021-11-25 19:06:09,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-25 19:06:09,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-11-25 19:06:09,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2021-11-25 19:06:09,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 19:06:09,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 19 [2021-11-25 19:06:09,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-25 19:06:10,125 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:10,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 25 [2021-11-25 19:06:10,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:10,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:10,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 39 [2021-11-25 19:06:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:10,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:10,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2021-11-25 19:06:10,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-25 19:06:11,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 139 [2021-11-25 19:06:11,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:11,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:11,477 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:11,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 32 [2021-11-25 19:06:11,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:11,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:06:11,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:06:11,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 19:06:11,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 180 [2021-11-25 19:06:11,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:06:12,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:06:12,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,259 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:12,434 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:12,467 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:12,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 19:06:12,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:12,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 19:06:12,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:12,992 INFO L354 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-11-25 19:06:12,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 83 [2021-11-25 19:06:13,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:13,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 156 [2021-11-25 19:06:13,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:06:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 19:06:13,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,777 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:13,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 21 [2021-11-25 19:06:13,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-25 19:06:13,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:06:13,884 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:13,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:06:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:13,969 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:06:13,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2021-11-25 19:06:14,062 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:06:14,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:06:14,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:06:14,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:14,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 [2021-11-25 19:06:14,290 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:06:14,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 152 treesize of output 143 [2021-11-25 19:06:14,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,297 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:14,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 161 [2021-11-25 19:06:14,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:14,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 128 treesize of output 65 [2021-11-25 19:06:14,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,495 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:06:14,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 56 [2021-11-25 19:06:14,673 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:06:14,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 164 treesize of output 153 [2021-11-25 19:06:14,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:14,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-25 19:06:14,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 144 treesize of output 101 [2021-11-25 19:06:14,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,822 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:14,826 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:06:14,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 64 [2021-11-25 19:06:15,249 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-25 19:06:15,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 51 [2021-11-25 19:06:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:15,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:29,986 WARN L227 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 148 DAG size of output: 132 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:06:45,232 WARN L227 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:06:45,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:45,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947247766] [2021-11-25 19:06:45,254 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149757618] [2021-11-25 19:06:45,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149757618] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:45,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1273872982] [2021-11-25 19:06:45,256 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:06:45,257 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:45,257 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:45,257 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:45,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:45,345 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:06:45,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:06:45,506 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:06:45,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:06:45,743 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:06:45,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:06:45,752 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:06:45,753 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:06:45,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:45,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:06:45,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:06:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:06:45,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:45,879 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:45,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:06:45,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:45,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:45,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:45,995 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:06:45,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 157 [2021-11-25 19:06:46,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:46,057 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:46,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:46,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:46,085 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:46,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:06:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:46,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:46,220 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:06:46,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 152 [2021-11-25 19:06:46,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:46,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:46,275 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:46,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:06:46,443 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:48,998 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2940#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:06:48,998 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:48,998 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:48,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-11-25 19:06:48,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248561379] [2021-11-25 19:06:48,999 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:48,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 19:06:48,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:49,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 19:06:49,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=920, Unknown=2, NotChecked=0, Total=1056 [2021-11-25 19:06:49,000 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-25 19:06:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:51,595 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2021-11-25 19:06:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 19:06:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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 20 [2021-11-25 19:06:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:51,597 INFO L225 Difference]: With dead ends: 52 [2021-11-25 19:06:51,597 INFO L226 Difference]: Without dead ends: 36 [2021-11-25 19:06:51,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=183, Invalid=1221, Unknown=2, NotChecked=0, Total=1406 [2021-11-25 19:06:51,598 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:51,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 63 Unchecked, 0.3s Time] [2021-11-25 19:06:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-25 19:06:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-11-25 19:06:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 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) [2021-11-25 19:06:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2021-11-25 19:06:51,606 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 20 [2021-11-25 19:06:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:51,606 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2021-11-25 19:06:51,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 27 states have internal predecessors, (37), 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) [2021-11-25 19:06:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-11-25 19:06:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:06:51,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:51,608 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:51,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:51,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 19:06:51,813 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1224454721, now seen corresponding path program 6 times [2021-11-25 19:06:51,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:51,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985838990] [2021-11-25 19:06:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:51,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:51,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:51,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923877392] [2021-11-25 19:06:51,835 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:06:51,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:51,837 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:51,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 19:06:52,821 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:06:52,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:06:52,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-25 19:06:52,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:52,845 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:52,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:06:52,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:52,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:52,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:52,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2021-11-25 19:06:52,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:06:52,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:06:52,928 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:52,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:06:52,959 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:52,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:06:53,005 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:53,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:06:53,078 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:06:53,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 67 [2021-11-25 19:06:53,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:06:53,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 17 [2021-11-25 19:06:53,170 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:06:53,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 67 [2021-11-25 19:06:53,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:06:53,192 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:06:53,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 19 [2021-11-25 19:06:53,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,239 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:53,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:06:53,295 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:06:53,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 133 [2021-11-25 19:06:53,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 161 [2021-11-25 19:06:53,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 109 treesize of output 66 [2021-11-25 19:06:53,450 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:06:53,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 108 [2021-11-25 19:06:53,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 125 [2021-11-25 19:06:53,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 71 treesize of output 40 [2021-11-25 19:06:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:53,559 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:06:53,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 44 [2021-11-25 19:06:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:53,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:15,121 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1097 Int) (v_ArrVal_1096 Int) (v_ArrVal_1087 Int) (v_ArrVal_1089 Int) (v_ArrVal_1086 (Array Int Int)) (v_ArrVal_1091 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (store (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_1086))) (let ((.cse2 (store (store (store (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_1087) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_1089) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1091))) (let ((.cse0 (select (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse0 .cse1 (+ (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_1096) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1097) .cse1)) 1)) is different from false [2021-11-25 19:07:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2021-11-25 19:07:15,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:15,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985838990] [2021-11-25 19:07:15,158 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:15,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923877392] [2021-11-25 19:07:15,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923877392] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:15,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [942012020] [2021-11-25 19:07:15,160 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:07:15,160 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:15,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:15,161 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:15,161 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:15,249 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:07:15,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:07:15,414 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:07:15,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:07:15,642 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:07:15,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:07:15,653 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:07:15,654 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:07:15,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:07:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,718 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:07:15,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:07:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:07:15,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:15,784 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:15,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:15,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:15,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:15,876 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:07:15,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:07:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:15,920 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:15,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:15,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:15,959 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:15,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:07:15,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:15,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:16,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:16,080 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:07:16,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 121 treesize of output 157 [2021-11-25 19:07:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:16,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:16,159 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:16,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:16,277 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:16,899 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3244#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:07:16,899 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:16,900 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:16,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-11-25 19:07:16,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693977399] [2021-11-25 19:07:16,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:16,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 19:07:16,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:16,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 19:07:16,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=856, Unknown=3, NotChecked=60, Total=1056 [2021-11-25 19:07:16,901 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-11-25 19:07:17,081 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1097 Int) (v_ArrVal_1096 Int) (v_ArrVal_1087 Int) (v_ArrVal_1089 Int) (v_ArrVal_1091 Int)) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (store (let ((.cse2 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_1087) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_1089) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1091))) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse2) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse0 .cse1 (+ (select .cse0 |c_ULTIMATE.start_main_~c~0#1.offset|) (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_1096) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1097) .cse1)) 1)) (forall ((v_ArrVal_1097 Int) (v_ArrVal_1096 Int) (v_ArrVal_1087 Int) (v_ArrVal_1089 Int) (v_ArrVal_1086 (Array Int Int)) (v_ArrVal_1091 Int)) (= (let ((.cse4 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8))) (select (store (store (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_1086))) (let ((.cse5 (store (store (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8) v_ArrVal_1087) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16) v_ArrVal_1089) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1091))) (let ((.cse3 (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~c~0#1.base|))) (store .cse3 .cse4 (+ (select .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~c~0#1.offset|)))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) v_ArrVal_1096) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1097) .cse4)) 1))) is different from false [2021-11-25 19:07:17,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:17,682 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-11-25 19:07:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-25 19:07:17,682 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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 20 [2021-11-25 19:07:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:17,682 INFO L225 Difference]: With dead ends: 47 [2021-11-25 19:07:17,683 INFO L226 Difference]: Without dead ends: 45 [2021-11-25 19:07:17,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=193, Invalid=1142, Unknown=5, NotChecked=142, Total=1482 [2021-11-25 19:07:17,684 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:17,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 64 Unchecked, 0.2s Time] [2021-11-25 19:07:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-25 19:07:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2021-11-25 19:07:17,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 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) [2021-11-25 19:07:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-11-25 19:07:17,694 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 20 [2021-11-25 19:07:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:17,694 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-11-25 19:07:17,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-11-25 19:07:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2021-11-25 19:07:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 19:07:17,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:17,695 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:17,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-25 19:07:17,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:17,903 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:17,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash -794820661, now seen corresponding path program 6 times [2021-11-25 19:07:17,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:17,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678594405] [2021-11-25 19:07:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:17,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:17,928 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:17,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054423462] [2021-11-25 19:07:17,929 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:07:17,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:17,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:17,940 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:17,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 19:07:19,861 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:07:19,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:07:19,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-25 19:07:19,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:19,950 INFO L354 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2021-11-25 19:07:19,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 130 [2021-11-25 19:07:19,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:19,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:19,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:20,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 21 [2021-11-25 19:07:20,089 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:07:20,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 24 [2021-11-25 19:07:20,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:07:20,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 19:07:20,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:07:20,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 19:07:20,255 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:07:20,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 27 treesize of output 31 [2021-11-25 19:07:20,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:07:20,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:07:20,314 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:20,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 21 [2021-11-25 19:07:20,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 19:07:20,370 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:20,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 28 [2021-11-25 19:07:20,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:07:20,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:07:20,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:07:20,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 19:07:20,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:07:20,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:07:20,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:07:20,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-25 19:07:20,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 19:07:20,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2021-11-25 19:07:20,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:07:20,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:07:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 [2021-11-25 19:07:20,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2021-11-25 19:07:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:07:20,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 19 [2021-11-25 19:07:20,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:20,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2021-11-25 19:07:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:07:20,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:21,589 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1211 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_1211) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:07:21,608 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1207 (Array Int Int)) (v_ArrVal_1211 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_1207) |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_1211) |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|) 0)) is different from false [2021-11-25 19:07:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 8 not checked. [2021-11-25 19:07:21,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:21,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678594405] [2021-11-25 19:07:21,633 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:21,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054423462] [2021-11-25 19:07:21,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054423462] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:21,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [933918893] [2021-11-25 19:07:21,634 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:07:21,634 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:21,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:21,635 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:21,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:21,719 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:07:21,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:07:21,893 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:07:21,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:07:22,146 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:07:22,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:07:22,159 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:07:22,160 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:07:22,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:07:22,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,230 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:07:22,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:07:22,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:07:22,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,286 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:22,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:22,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,348 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,363 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:07:22,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:07:22,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,414 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:22,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:22,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,457 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:22,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:22,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,523 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,532 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:07:22,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:07:22,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:22,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:22,585 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:22,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:22,613 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:23,038 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3543#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:07:23,038 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:23,038 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:23,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2021-11-25 19:07:23,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708693134] [2021-11-25 19:07:23,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:23,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 19:07:23,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:23,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 19:07:23,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=521, Unknown=2, NotChecked=98, Total=756 [2021-11-25 19:07:23,040 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 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) [2021-11-25 19:07:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:23,708 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2021-11-25 19:07:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 19:07:23,709 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 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 20 [2021-11-25 19:07:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:23,710 INFO L225 Difference]: With dead ends: 81 [2021-11-25 19:07:23,710 INFO L226 Difference]: Without dead ends: 79 [2021-11-25 19:07:23,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=228, Invalid=968, Unknown=2, NotChecked=134, Total=1332 [2021-11-25 19:07:23,711 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 55 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:23,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 62 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 163 Invalid, 0 Unknown, 108 Unchecked, 0.3s Time] [2021-11-25 19:07:23,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-25 19:07:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 39. [2021-11-25 19:07:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 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) [2021-11-25 19:07:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2021-11-25 19:07:23,724 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 20 [2021-11-25 19:07:23,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:23,725 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-11-25 19:07:23,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.434782608695652) internal successors, (33), 23 states have internal predecessors, (33), 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) [2021-11-25 19:07:23,725 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2021-11-25 19:07:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 19:07:23,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:23,726 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:23,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 19:07:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 19:07:23,937 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:23,938 INFO L85 PathProgramCache]: Analyzing trace with hash 945888490, now seen corresponding path program 7 times [2021-11-25 19:07:23,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:23,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818430211] [2021-11-25 19:07:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:23,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:23,966 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:23,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446985580] [2021-11-25 19:07:23,967 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:07:23,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:23,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:23,981 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:23,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 19:07:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:07:24,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:07:24,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:24,299 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 19:07:24,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 19:07:24,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818430211] [2021-11-25 19:07:24,402 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446985580] [2021-11-25 19:07:24,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446985580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1332217435] [2021-11-25 19:07:24,404 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:07:24,404 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:24,404 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:24,405 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:24,405 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:24,665 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:07:24,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:07:24,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:07:24,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:07:24,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2021-11-25 19:07:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:24,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:24,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:24,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:24,951 INFO L354 Elim1Store]: treesize reduction 263, result has 11.4 percent of original size [2021-11-25 19:07:24,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 516 treesize of output 532 [2021-11-25 19:07:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:07:25,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,090 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:25,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,183 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:07:25,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:07:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,225 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:25,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,255 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:25,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:07:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,390 INFO L354 Elim1Store]: treesize reduction 269, result has 9.7 percent of original size [2021-11-25 19:07:25,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 183 [2021-11-25 19:07:25,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:25,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:25,444 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:25,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:07:25,594 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:25,964 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3903#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:07:25,964 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:25,964 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:25,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-25 19:07:25,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729629729] [2021-11-25 19:07:25,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:25,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:07:25,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:07:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:07:25,966 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:07:26,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:26,416 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2021-11-25 19:07:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 19:07:26,417 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 19:07:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:26,419 INFO L225 Difference]: With dead ends: 80 [2021-11-25 19:07:26,419 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 19:07:26,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=562, Unknown=0, NotChecked=0, Total=702 [2021-11-25 19:07:26,421 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:26,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 49 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 19:07:26,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 19:07:26,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 39. [2021-11-25 19:07:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 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) [2021-11-25 19:07:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2021-11-25 19:07:26,435 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 22 [2021-11-25 19:07:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:26,436 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-11-25 19:07:26,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:07:26,436 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-11-25 19:07:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:07:26,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:26,437 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:26,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 19:07:26,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 19:07:26,653 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash -568220263, now seen corresponding path program 8 times [2021-11-25 19:07:26,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:26,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032318046] [2021-11-25 19:07:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:26,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:26,675 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:26,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [261848593] [2021-11-25 19:07:26,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:07:26,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:26,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:26,690 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 19:07:28,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:07:28,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:07:28,908 WARN L261 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-25 19:07:28,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:28,966 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:07:28,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:07:28,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:28,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:28,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:28,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2021-11-25 19:07:28,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2021-11-25 19:07:28,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 31 [2021-11-25 19:07:29,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:29,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:29,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:07:29,134 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:07:29,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:07:29,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:07:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 19 [2021-11-25 19:07:29,305 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:07:29,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:07:29,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:07:29,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 [2021-11-25 19:07:29,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,476 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:07:29,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2021-11-25 19:07:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,629 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:07:29,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 42 [2021-11-25 19:07:29,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,734 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:07:29,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 54 [2021-11-25 19:07:29,897 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-25 19:07:29,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 93 treesize of output 96 [2021-11-25 19:07:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,951 INFO L354 Elim1Store]: treesize reduction 46, result has 41.8 percent of original size [2021-11-25 19:07:29,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 107 [2021-11-25 19:07:29,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:29,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 47 treesize of output 31 [2021-11-25 19:07:30,125 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:07:30,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 44 [2021-11-25 19:07:30,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 35 [2021-11-25 19:07:30,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 35 [2021-11-25 19:07:30,667 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:07:30,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 172 treesize of output 159 [2021-11-25 19:07:30,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:30,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-25 19:07:30,732 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:07:30,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 131 treesize of output 79 [2021-11-25 19:07:30,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:30,940 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:30,945 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:07:30,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 68 [2021-11-25 19:07:31,109 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:07:31,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 135 treesize of output 118 [2021-11-25 19:07:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 118 [2021-11-25 19:07:31,166 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:07:31,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:31,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 66 [2021-11-25 19:07:31,939 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-25 19:07:31,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 55 [2021-11-25 19:07:31,971 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:31,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:08:24,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:24,500 INFO L354 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2021-11-25 19:08:24,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 2081 treesize of output 1 [2021-11-25 19:08:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:08:24,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:08:24,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032318046] [2021-11-25 19:08:24,510 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:08:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261848593] [2021-11-25 19:08:24,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261848593] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:08:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [837020470] [2021-11-25 19:08:24,512 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:08:24,512 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:08:24,512 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:08:24,513 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:08:24,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:08:24,630 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:08:24,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:08:24,849 INFO L354 Elim1Store]: treesize reduction 185, result has 24.5 percent of original size [2021-11-25 19:08:24,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 76 [2021-11-25 19:08:25,147 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:08:25,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:08:25,159 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:08:25,159 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-11-25 19:08:25,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:08:25,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,247 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:08:25,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:08:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:08:25,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,340 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:25,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:08:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,454 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:08:25,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:08:25,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,499 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:25,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:08:25,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,530 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:25,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:08:25,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,614 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,627 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:08:25,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:08:25,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:25,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:25,698 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:25,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:08:25,826 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:08:29,244 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4279#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:08:29,244 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:08:29,244 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:08:29,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-25 19:08:29,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146865945] [2021-11-25 19:08:29,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:08:29,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 19:08:29,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:08:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 19:08:29,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1318, Unknown=12, NotChecked=0, Total=1560 [2021-11-25 19:08:29,249 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 34 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 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) [2021-11-25 19:08:39,311 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse4 (select .cse21 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))) (.cse20 (select .cse21 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse0 (= 1 .cse20)) (.cse3 (= (+ 6 .cse20) .cse4))) (and (let ((.cse1 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse2 (= 7 .cse4))) (or (and .cse0 (= .cse1 8)) (and .cse2 (= .cse1 0)) (and .cse2 .cse3))) .cse0 (<= c_~N~0 4) (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) (< 3 c_~N~0) (not (= |c_ULTIMATE.start_main_~c~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= 6 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) .cse3 (or (forall ((|v_ULTIMATE.start_main_~i~0#1_507| Int)) (or (<= c_~N~0 |v_ULTIMATE.start_main_~i~0#1_507|) (< (+ |v_ULTIMATE.start_main_~i~0#1_507| 1) c_~N~0) (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (and (or (<= .cse5 2147483647) (forall ((v_ArrVal_1421 Int) (v_ArrVal_1413 Int) (v_ArrVal_1415 Int)) (= (let ((.cse7 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (let ((.cse12 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1413) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |v_ULTIMATE.start_main_~i~0#1_507| 4294967296) 8)) v_ArrVal_1415))) (let ((.cse10 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse12))) (let ((.cse11 (select .cse10 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse8 (select .cse12 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (select .cse11 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse6 (store .cse11 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse8 .cse9)))) (store .cse6 .cse7 (+ .cse8 .cse9 (select (select (store .cse10 |c_ULTIMATE.start_main_~c~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1421) .cse7)) 8))) (or (< 2147483647 .cse5) (forall ((v_ArrVal_1421 Int) (v_ArrVal_1413 Int) (v_ArrVal_1415 Int)) (= (let ((.cse14 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (let ((.cse19 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1413) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |v_ULTIMATE.start_main_~i~0#1_507| 4294967296) 8)) v_ArrVal_1415))) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19))) (let ((.cse18 (select .cse15 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse16 (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (select .cse18 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse13 (store .cse18 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse16 .cse17)))) (store .cse13 .cse14 (+ (select (select (store .cse15 |c_ULTIMATE.start_main_~c~0#1.base| .cse13) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse16 .cse17))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1421) .cse14)) 8))))))) (< 4 c_~N~0) (<= c_~N~0 3)) (= 0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (< |c_ULTIMATE.start_main_~i~0#1| (+ c_~N~0 1)) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (not (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0)))))))) is different from false [2021-11-25 19:08:41,028 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse3 (select .cse4 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)))) (let ((.cse1 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse2 (= 7 .cse3)) (.cse0 (select .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|))) (or (and (= 1 .cse0) (= .cse1 8)) (and .cse2 (= .cse1 0)) (and .cse2 (= (+ 6 .cse0) .cse3)))))) (<= c_~N~0 4) (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) (< 3 c_~N~0) (not (= |c_ULTIMATE.start_main_~c~0#1.base| |c_ULTIMATE.start_main_~b~0#1.base|)) (or (forall ((|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_1421 Int) (v_ArrVal_1415 Int)) (or (= (let ((.cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (let ((.cse11 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1415))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11))) (let ((.cse10 (select .cse7 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse8 (select .cse10 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse9 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse5 (store .cse10 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse8 .cse9)))) (store .cse5 .cse6 (+ (select (select (store .cse7 |c_ULTIMATE.start_main_~c~0#1.base| .cse5) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse8 .cse9))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1421) .cse6)) 8) (<= c_~N~0 |ULTIMATE.start_main_~i~0#1|) (< (+ |ULTIMATE.start_main_~i~0#1| 1) c_~N~0))) (< 4 c_~N~0) (<= c_~N~0 3)) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (= 0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (< |c_ULTIMATE.start_main_~i~0#1| (+ c_~N~0 1)) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (not (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)) (= 6 (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0))))) is different from false [2021-11-25 19:08:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:08:42,376 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2021-11-25 19:08:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-25 19:08:42,378 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:08:42,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:08:42,379 INFO L225 Difference]: With dead ends: 61 [2021-11-25 19:08:42,379 INFO L226 Difference]: Without dead ends: 59 [2021-11-25 19:08:42,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 61.5s TimeCoverageRelationStatistics Valid=304, Invalid=1668, Unknown=16, NotChecked=174, Total=2162 [2021-11-25 19:08:42,381 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 140 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:08:42,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 68 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 51 Invalid, 0 Unknown, 140 Unchecked, 0.2s Time] [2021-11-25 19:08:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-25 19:08:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 48. [2021-11-25 19:08:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 47 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:08:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2021-11-25 19:08:42,399 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 23 [2021-11-25 19:08:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:08:42,400 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-11-25 19:08:42,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 states have internal predecessors, (44), 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) [2021-11-25 19:08:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-11-25 19:08:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 19:08:42,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:08:42,401 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:08:42,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-25 19:08:42,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-25 19:08:42,608 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:08:42,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:08:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash -342480883, now seen corresponding path program 9 times [2021-11-25 19:08:42,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:08:42,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844049419] [2021-11-25 19:08:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:08:42,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:08:42,639 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:08:42,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805208377] [2021-11-25 19:08:42,640 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:08:42,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:08:42,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:08:42,641 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:08:42,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 19:08:45,929 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:08:45,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:08:45,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-25 19:08:45,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:08:45,957 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:45,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:08:45,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:45,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:45,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:45,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2021-11-25 19:08:45,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:08:45,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:08:46,036 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:08:46,078 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:08:46,128 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:08:46,153 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 26 [2021-11-25 19:08:46,239 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:08:46,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 67 [2021-11-25 19:08:46,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:08:46,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 19 [2021-11-25 19:08:46,317 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:08:46,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 67 [2021-11-25 19:08:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:08:46,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 32 treesize of output 19 [2021-11-25 19:08:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,374 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:08:46,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,408 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 19:08:46,479 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:08:46,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 145 treesize of output 133 [2021-11-25 19:08:46,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:08:46,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 161 [2021-11-25 19:08:46,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 31 [2021-11-25 19:08:46,683 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-25 19:08:46,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 96 [2021-11-25 19:08:46,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 123 [2021-11-25 19:08:46,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 84 treesize of output 43 [2021-11-25 19:08:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,795 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 42 [2021-11-25 19:08:46,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:08:46,833 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:08:46,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:08:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:08:46,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:09:24,847 WARN L227 SmtUtils]: Spent 8.74s on a formula simplification. DAG size of input: 159 DAG size of output: 141 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:09:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 25 refuted. 1 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 19:09:31,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:09:31,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844049419] [2021-11-25 19:09:31,262 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:09:31,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805208377] [2021-11-25 19:09:31,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805208377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:09:31,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [219866320] [2021-11-25 19:09:31,263 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:09:31,264 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:09:31,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:09:31,264 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:09:31,264 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:09:31,364 INFO L354 Elim1Store]: treesize reduction 84, result has 33.9 percent of original size [2021-11-25 19:09:31,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 63 [2021-11-25 19:09:31,547 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:09:31,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:09:31,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:09:31,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:09:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,652 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:09:31,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 109 [2021-11-25 19:09:31,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:09:31,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:31,739 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:31,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:31,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:31,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:31,838 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:09:31,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:09:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:31,905 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:31,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:31,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:31,944 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:31,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:31,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:32,036 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:09:32,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 185 treesize of output 166 [2021-11-25 19:09:32,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:32,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:32,099 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:32,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:32,261 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:09:33,919 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4646#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (<= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~b~0#1.offset|) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~c~0#1.offset|) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~b~0#1.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:09:33,919 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:09:33,919 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:09:33,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-11-25 19:09:33,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665474793] [2021-11-25 19:09:33,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:09:33,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-25 19:09:33,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:09:33,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-25 19:09:33,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1142, Unknown=19, NotChecked=0, Total=1332 [2021-11-25 19:09:33,921 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 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) [2021-11-25 19:09:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:09:36,003 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2021-11-25 19:09:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-25 19:09:36,004 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 19:09:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:09:36,005 INFO L225 Difference]: With dead ends: 76 [2021-11-25 19:09:36,005 INFO L226 Difference]: Without dead ends: 74 [2021-11-25 19:09:36,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 45.0s TimeCoverageRelationStatistics Valid=249, Invalid=1537, Unknown=20, NotChecked=0, Total=1806 [2021-11-25 19:09:36,006 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:09:36,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 35 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 136 Unchecked, 0.4s Time] [2021-11-25 19:09:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-25 19:09:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2021-11-25 19:09:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 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) [2021-11-25 19:09:36,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2021-11-25 19:09:36,028 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 23 [2021-11-25 19:09:36,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:09:36,029 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2021-11-25 19:09:36,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 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) [2021-11-25 19:09:36,029 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2021-11-25 19:09:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 19:09:36,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:09:36,031 INFO L514 BasicCegarLoop]: trace histogram [8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:09:36,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 19:09:36,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:09:36,244 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:09:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:09:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2108711051, now seen corresponding path program 7 times [2021-11-25 19:09:36,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:09:36,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579178555] [2021-11-25 19:09:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:09:36,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:09:36,276 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:09:36,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188002750] [2021-11-25 19:09:36,276 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:09:36,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:09:36,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:09:36,293 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:09:36,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-25 19:09:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:09:36,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:09:36,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:09:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 19:09:36,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:09:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 19:09:36,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:09:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579178555] [2021-11-25 19:09:36,812 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:09:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188002750] [2021-11-25 19:09:36,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188002750] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:09:36,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [291335725] [2021-11-25 19:09:36,814 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-25 19:09:36,814 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:09:36,814 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:09:36,814 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:09:36,814 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:09:37,013 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:09:37,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:09:37,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:09:37,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:09:37,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 106 [2021-11-25 19:09:37,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,360 INFO L354 Elim1Store]: treesize reduction 320, result has 0.3 percent of original size [2021-11-25 19:09:37,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 581 treesize of output 528 [2021-11-25 19:09:37,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:09:37,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,521 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:37,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:09:37,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,690 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:09:37,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 188 [2021-11-25 19:09:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,747 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:37,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:37,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,772 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:37,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 19:09:37,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:37,916 INFO L354 Elim1Store]: treesize reduction 264, result has 11.4 percent of original size [2021-11-25 19:09:37,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 188 [2021-11-25 19:09:37,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:37,996 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:38,002 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:38,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:09:38,055 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:09:38,714 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5068#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= (ite (= (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (= (select (select |#memory_int| |ULTIMATE.start_main_~c~0#1.base|) (+ |ULTIMATE.start_main_~c~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem17#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:09:38,714 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:09:38,714 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:09:38,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2021-11-25 19:09:38,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655914666] [2021-11-25 19:09:38,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:09:38,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 19:09:38,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:09:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 19:09:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:09:38,715 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:09:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:09:39,477 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2021-11-25 19:09:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-25 19:09:39,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 19:09:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:09:39,480 INFO L225 Difference]: With dead ends: 151 [2021-11-25 19:09:39,480 INFO L226 Difference]: Without dead ends: 118 [2021-11-25 19:09:39,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1355, Unknown=0, NotChecked=0, Total=1722 [2021-11-25 19:09:39,482 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 114 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:09:39,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 77 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:09:39,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-25 19:09:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 70. [2021-11-25 19:09:39,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 69 states have internal predecessors, (84), 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) [2021-11-25 19:09:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2021-11-25 19:09:39,502 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 24 [2021-11-25 19:09:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:09:39,502 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2021-11-25 19:09:39,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:09:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2021-11-25 19:09:39,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 19:09:39,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:09:39,503 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:09:39,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-25 19:09:39,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:09:39,712 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:09:39,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:09:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1378613377, now seen corresponding path program 10 times [2021-11-25 19:09:39,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:09:39,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47648224] [2021-11-25 19:09:39,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:09:39,713 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:09:39,736 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:09:39,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805310842] [2021-11-25 19:09:39,736 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:09:39,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:09:39,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:09:39,753 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:09:39,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-25 19:09:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:09:40,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-25 19:09:40,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:09:40,883 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:09:40,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:09:40,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:40,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:40,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:40,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2021-11-25 19:09:40,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2021-11-25 19:09:40,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:09:40,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 30 [2021-11-25 19:09:40,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:09:40,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:09:41,018 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:09:41,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 130 treesize of output 125 [2021-11-25 19:09:41,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:41,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 139 [2021-11-25 19:09:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 31 [2021-11-25 19:09:41,160 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:09:41,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 98 [2021-11-25 19:09:41,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 113 [2021-11-25 19:09:41,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:09:41,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 49 [2021-11-25 19:09:41,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,273 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:09:41,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 52 [2021-11-25 19:09:41,381 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:09:41,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 164 treesize of output 153 [2021-11-25 19:09:41,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:41,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-25 19:09:41,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 41 [2021-11-25 19:09:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,536 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:09:41,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 66 [2021-11-25 19:09:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,618 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:09:41,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 82 [2021-11-25 19:09:41,833 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:09:41,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 210 treesize of output 185 [2021-11-25 19:09:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:41,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-25 19:09:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:41,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 111 treesize of output 68 [2021-11-25 19:09:42,130 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:09:42,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 259 treesize of output 228 [2021-11-25 19:09:42,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 207 [2021-11-25 19:09:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 44 [2021-11-25 19:09:42,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:42,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:09:42,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:09:42,341 INFO L354 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2021-11-25 19:09:42,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 128 treesize of output 104 [2021-11-25 19:09:43,384 INFO L354 Elim1Store]: treesize reduction 44, result has 22.8 percent of original size [2021-11-25 19:09:43,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 137 treesize of output 69 [2021-11-25 19:09:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:09:43,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:10:32,240 WARN L227 SmtUtils]: Spent 14.85s on a formula simplification. DAG size of input: 178 DAG size of output: 135 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:12:56,850 WARN L227 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 234 DAG size of output: 210 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:14:34,126 WARN L227 SmtUtils]: Spent 35.06s on a formula simplification. DAG size of input: 170 DAG size of output: 138 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:14:48,750 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse120 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse119 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (< 2147483647 .cse53)) (.cse35 (<= .cse119 2147483647)) (.cse1 (< 2147483647 .cse120)) (.cse34 (<= .cse120 2147483647)) (.cse36 (< 2147483647 .cse119)) (.cse70 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (and (or (and (or .cse0 (and (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse16 (store (store (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16))) (let ((.cse10 (store (let ((.cse15 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse13 (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse12 (store .cse15 .cse8 (+ .cse13 .cse14)))) (store .cse12 .cse7 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse12) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse13 .cse14))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse10))) (let ((.cse9 (select .cse5 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse2 (select .cse9 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse4 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse6 (store .cse9 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse2 .cse4)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))) (+ .cse2 .cse3 .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse32 (store (store (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse23 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse24 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32))) (let ((.cse26 (store (let ((.cse31 (select .cse27 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse29 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse30 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse28 (store .cse31 .cse24 (+ .cse29 .cse30)))) (store .cse28 .cse23 (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse29 .cse30))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse19 (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse26))) (let ((.cse25 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse18 (select .cse25 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse21 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse20 (store .cse25 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse18 .cse21)))) (let ((.cse22 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse18 .cse21 .cse22))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse23) .cse21 .cse22))))))))) 27)) .cse34)) .cse35) (or .cse36 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse51 (store (store (let ((.cse52 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse42 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse43 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse45 (store (let ((.cse50 (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse47 (store .cse50 .cse43 (+ .cse48 .cse49)))) (store .cse47 .cse42 (+ (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse48 .cse49))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse39 (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse45))) (let ((.cse44 (select .cse39 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse37 (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse44 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse40 (store .cse44 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse37 .cse41)))) (let ((.cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|) .cse43))) (+ .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse40 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse37 .cse38 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse42) .cse41))))))))) 27))))) (or (<= .cse53 2147483647) (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse68 (store (store (let ((.cse69 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse59 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse60 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68))) (let ((.cse62 (store (let ((.cse67 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse65 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse66 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse64 (store .cse67 .cse60 (+ .cse65 .cse66)))) (store .cse64 .cse59 (+ .cse65 .cse66 (select (select (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse64) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse54 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse62))) (let ((.cse61 (select .cse54 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse56 (select .cse61 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse58 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (store .cse61 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse56 .cse58)))) (let ((.cse57 (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| .cse55) |c_ULTIMATE.start_main_~b~0#1.base|) .cse60))) (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse55 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse59) .cse56 .cse57 .cse58))))))))) 27)))) (< 2147483647 .cse70)) (or (and .cse0 (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse85 (store (store (let ((.cse86 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse76 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse77 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse80 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse85))) (let ((.cse79 (store (let ((.cse84 (select .cse80 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse82 (select .cse84 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse83 (select .cse85 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse81 (store .cse84 .cse77 (+ .cse82 .cse83)))) (store .cse81 .cse76 (+ .cse82 .cse83 (select (select (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse81) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse74 (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse79))) (let ((.cse78 (select .cse74 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse72 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse73 (select .cse78 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse75 (store .cse78 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse72 .cse73)))) (let ((.cse71 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| .cse75) |c_ULTIMATE.start_main_~b~0#1.base|) .cse77))) (+ .cse71 .cse72 .cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse75 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse71 .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse76)))))))))) 27)) .cse35) (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse101 (store (store (let ((.cse102 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse92 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse93 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse101))) (let ((.cse95 (store (let ((.cse100 (select .cse96 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse99 (select .cse100 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse97 (store .cse100 .cse93 (+ .cse98 .cse99)))) (store .cse97 .cse92 (+ .cse98 (select (select (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse97) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse99))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse89 (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse95))) (let ((.cse94 (select .cse89 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse87 (select .cse95 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse91 (select .cse94 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse90 (store .cse94 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse87 .cse91)))) (let ((.cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| .cse90) |c_ULTIMATE.start_main_~b~0#1.base|) .cse93))) (+ .cse87 .cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse90 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse87 .cse88 .cse91))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse92) .cse91))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse117 (store (store (let ((.cse118 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse108 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse109 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse112 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse117))) (let ((.cse111 (store (let ((.cse116 (select .cse112 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse114 (select .cse117 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse115 (select .cse116 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse113 (store .cse116 .cse109 (+ .cse114 .cse115)))) (store .cse113 .cse108 (+ .cse114 (select (select (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse113) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse115))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse104 (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse111))) (let ((.cse110 (select .cse104 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse103 (select .cse111 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse106 (select .cse110 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse105 (store .cse110 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse103 .cse106)))) (let ((.cse107 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| .cse105) |c_ULTIMATE.start_main_~b~0#1.base|) .cse109))) (+ .cse103 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse105 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse103 .cse106 .cse107))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse108) .cse106 .cse107))))))))) 27)) .cse34)) .cse36)) (<= .cse70 2147483647))))) is different from false [2021-11-25 19:14:50,768 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse120 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse119 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (< 2147483647 .cse53)) (.cse35 (<= .cse119 2147483647)) (.cse1 (< 2147483647 .cse120)) (.cse34 (<= .cse120 2147483647)) (.cse36 (< 2147483647 .cse119)) (.cse70 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (and (or (and (or .cse0 (and (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse16 (store (store (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16))) (let ((.cse10 (store (let ((.cse15 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse13 (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse12 (store .cse15 .cse8 (+ .cse13 .cse14)))) (store .cse12 .cse7 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse12) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse13 .cse14))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse10))) (let ((.cse9 (select .cse5 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse2 (select .cse9 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse4 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse6 (store .cse9 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse2 .cse4)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))) (+ .cse2 .cse3 .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse32 (store (store (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse23 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse24 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32))) (let ((.cse26 (store (let ((.cse31 (select .cse27 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse29 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse30 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse28 (store .cse31 .cse24 (+ .cse29 .cse30)))) (store .cse28 .cse23 (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse29 .cse30))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse19 (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse26))) (let ((.cse25 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse18 (select .cse25 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse21 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse20 (store .cse25 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse18 .cse21)))) (let ((.cse22 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse18 .cse21 .cse22))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse23) .cse21 .cse22))))))))) 27)) .cse34)) .cse35) (or .cse36 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse51 (store (store (let ((.cse52 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse42 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse43 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse45 (store (let ((.cse50 (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse47 (store .cse50 .cse43 (+ .cse48 .cse49)))) (store .cse47 .cse42 (+ (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse48 .cse49))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse39 (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse45))) (let ((.cse44 (select .cse39 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse37 (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse44 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse40 (store .cse44 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse37 .cse41)))) (let ((.cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|) .cse43))) (+ .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse40 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse37 .cse38 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse42) .cse41))))))))) 27))))) (or (<= .cse53 2147483647) (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse68 (store (store (let ((.cse69 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse59 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse60 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68))) (let ((.cse62 (store (let ((.cse67 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse65 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse66 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse64 (store .cse67 .cse60 (+ .cse65 .cse66)))) (store .cse64 .cse59 (+ .cse65 .cse66 (select (select (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse64) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse54 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse62))) (let ((.cse61 (select .cse54 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse56 (select .cse61 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse58 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (store .cse61 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse56 .cse58)))) (let ((.cse57 (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| .cse55) |c_ULTIMATE.start_main_~b~0#1.base|) .cse60))) (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse55 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse59) .cse56 .cse57 .cse58))))))))) 27)))) (< 2147483647 .cse70)) (or (and .cse0 (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse85 (store (store (let ((.cse86 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse76 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse77 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse80 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse85))) (let ((.cse79 (store (let ((.cse84 (select .cse80 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse82 (select .cse84 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse83 (select .cse85 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse81 (store .cse84 .cse77 (+ .cse82 .cse83)))) (store .cse81 .cse76 (+ .cse82 .cse83 (select (select (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse81) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse74 (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse79))) (let ((.cse78 (select .cse74 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse72 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse73 (select .cse78 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse75 (store .cse78 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse72 .cse73)))) (let ((.cse71 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| .cse75) |c_ULTIMATE.start_main_~b~0#1.base|) .cse77))) (+ .cse71 .cse72 .cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse75 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse71 .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse76)))))))))) 27)) .cse35) (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse101 (store (store (let ((.cse102 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse92 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse93 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse101))) (let ((.cse95 (store (let ((.cse100 (select .cse96 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse99 (select .cse100 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse97 (store .cse100 .cse93 (+ .cse98 .cse99)))) (store .cse97 .cse92 (+ .cse98 (select (select (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse97) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse99))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse89 (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse95))) (let ((.cse94 (select .cse89 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse87 (select .cse95 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse91 (select .cse94 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse90 (store .cse94 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse87 .cse91)))) (let ((.cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| .cse90) |c_ULTIMATE.start_main_~b~0#1.base|) .cse93))) (+ .cse87 .cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse90 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse87 .cse88 .cse91))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse92) .cse91))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse117 (store (store (let ((.cse118 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse108 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse109 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse112 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse117))) (let ((.cse111 (store (let ((.cse116 (select .cse112 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse114 (select .cse117 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse115 (select .cse116 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse113 (store .cse116 .cse109 (+ .cse114 .cse115)))) (store .cse113 .cse108 (+ .cse114 (select (select (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse113) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse115))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse104 (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse111))) (let ((.cse110 (select .cse104 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse103 (select .cse111 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse106 (select .cse110 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse105 (store .cse110 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse103 .cse106)))) (let ((.cse107 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| .cse105) |c_ULTIMATE.start_main_~b~0#1.base|) .cse109))) (+ .cse103 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse105 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse103 .cse106 .cse107))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse108) .cse106 .cse107))))))))) 27)) .cse34)) .cse36)) (<= .cse70 2147483647))))) is different from true [2021-11-25 19:14:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 26 refuted. 4 times theorem prover too weak. 0 trivial. 3 not checked. [2021-11-25 19:14:50,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:14:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47648224] [2021-11-25 19:14:50,793 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:14:50,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805310842] [2021-11-25 19:14:50,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805310842] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:14:50,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2057847356] [2021-11-25 19:14:50,794 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 19:14:50,794 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:14:50,794 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:14:50,794 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:14:50,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:14:50,977 INFO L354 Elim1Store]: treesize reduction 251, result has 19.8 percent of original size [2021-11-25 19:14:50,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 60 treesize of output 105 [2021-11-25 19:14:50,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 46 [2021-11-25 19:14:51,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 42 [2021-11-25 19:14:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 62 [2021-11-25 19:14:51,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,259 INFO L354 Elim1Store]: treesize reduction 263, result has 11.4 percent of original size [2021-11-25 19:14:51,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 508 treesize of output 530 [2021-11-25 19:14:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2021-11-25 19:14:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,413 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:14:51,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:14:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,496 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:14:51,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:14:51,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,544 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:14:51,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:14:51,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,568 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:14:51,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:14:51,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,658 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 19:14:51,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 216 treesize of output 197 [2021-11-25 19:14:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:14:51,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:14:51,701 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:14:51,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 93 [2021-11-25 19:14:51,836 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:14:59,109 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5661#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~c~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 19:14:59,109 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:14:59,110 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:14:59,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 35 [2021-11-25 19:14:59,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225491953] [2021-11-25 19:14:59,110 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:14:59,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-25 19:14:59,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:14:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-25 19:14:59,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1379, Unknown=33, NotChecked=76, Total=1640 [2021-11-25 19:14:59,111 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand has 35 states, 35 states have (on average 1.4) internal successors, (49), 35 states have internal predecessors, (49), 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) [2021-11-25 19:15:01,165 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse120 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse119 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (< 2147483647 .cse53)) (.cse35 (<= .cse119 2147483647)) (.cse1 (< 2147483647 .cse120)) (.cse34 (<= .cse120 2147483647)) (.cse36 (< 2147483647 .cse119)) (.cse70 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (and (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or (and (or .cse0 (and (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse16 (store (store (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse7 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse8 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16))) (let ((.cse10 (store (let ((.cse15 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse13 (select .cse16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse14 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse12 (store .cse15 .cse8 (+ .cse13 .cse14)))) (store .cse12 .cse7 (+ (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse12) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse13 .cse14))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| .cse10))) (let ((.cse9 (select .cse5 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse2 (select .cse9 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse4 (select .cse10 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse6 (store .cse9 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse2 .cse4)))) (let ((.cse3 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|) .cse8))) (+ .cse2 .cse3 .cse4 (select (select (store .cse5 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7)))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse32 (store (store (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse33 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse23 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse24 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32))) (let ((.cse26 (store (let ((.cse31 (select .cse27 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse29 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse30 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse28 (store .cse31 .cse24 (+ .cse29 .cse30)))) (store .cse28 .cse23 (+ (select (select (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse29 .cse30))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse19 (store .cse27 |c_ULTIMATE.start_main_~b~0#1.base| .cse26))) (let ((.cse25 (select .cse19 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse18 (select .cse25 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse21 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse20 (store .cse25 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse18 .cse21)))) (let ((.cse22 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|) .cse24))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse20 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse18 .cse21 .cse22))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse23) .cse21 .cse22))))))))) 27)) .cse34)) .cse35) (or .cse36 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse51 (store (store (let ((.cse52 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1759))) (let ((.cse42 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse43 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51))) (let ((.cse45 (store (let ((.cse50 (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse47 (store .cse50 .cse43 (+ .cse48 .cse49)))) (store .cse47 .cse42 (+ (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse48 .cse49))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse39 (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse45))) (let ((.cse44 (select .cse39 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse37 (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse44 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse40 (store .cse44 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse37 .cse41)))) (let ((.cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|) .cse43))) (+ .cse37 .cse38 (select (select (store .cse39 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse40 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse37 .cse38 .cse41))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse42) .cse41))))))))) 27))))) (or (<= .cse53 2147483647) (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse68 (store (store (let ((.cse69 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse69 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse59 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse60 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse63 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68))) (let ((.cse62 (store (let ((.cse67 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse65 (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse66 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse64 (store .cse67 .cse60 (+ .cse65 .cse66)))) (store .cse64 .cse59 (+ .cse65 .cse66 (select (select (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse64) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse54 (store .cse63 |c_ULTIMATE.start_main_~b~0#1.base| .cse62))) (let ((.cse61 (select .cse54 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse56 (select .cse61 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse58 (select .cse62 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse55 (store .cse61 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse56 .cse58)))) (let ((.cse57 (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| .cse55) |c_ULTIMATE.start_main_~b~0#1.base|) .cse60))) (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse55 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse56 .cse57 .cse58))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse59) .cse56 .cse57 .cse58))))))))) 27)))) (< 2147483647 .cse70)) (= 1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) (= |c_ULTIMATE.start_main_~i~0#1| 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 6) (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) (= |c_ULTIMATE.start_main_~b~0#1.offset| 0) (= 0 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset|)) (or (and .cse0 (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse85 (store (store (let ((.cse86 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse86 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse76 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse77 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse80 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse85))) (let ((.cse79 (store (let ((.cse84 (select .cse80 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse82 (select .cse84 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse83 (select .cse85 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse81 (store .cse84 .cse77 (+ .cse82 .cse83)))) (store .cse81 .cse76 (+ .cse82 .cse83 (select (select (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse81) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse74 (store .cse80 |c_ULTIMATE.start_main_~b~0#1.base| .cse79))) (let ((.cse78 (select .cse74 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse72 (select .cse79 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse73 (select .cse78 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse75 (store .cse78 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse72 .cse73)))) (let ((.cse71 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| .cse75) |c_ULTIMATE.start_main_~b~0#1.base|) .cse77))) (+ .cse71 .cse72 .cse73 (select (select (store .cse74 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse75 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse71 .cse72 .cse73))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse76)))))))))) 27)) .cse35) (or (and (or .cse1 (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse101 (store (store (let ((.cse102 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (+ 6 (select .cse102 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse92 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse93 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse101))) (let ((.cse95 (store (let ((.cse100 (select .cse96 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse99 (select .cse100 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse97 (store .cse100 .cse93 (+ .cse98 .cse99)))) (store .cse97 .cse92 (+ .cse98 (select (select (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse97) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse99))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse89 (store .cse96 |c_ULTIMATE.start_main_~b~0#1.base| .cse95))) (let ((.cse94 (select .cse89 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse87 (select .cse95 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse91 (select .cse94 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse90 (store .cse94 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse87 .cse91)))) (let ((.cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| .cse90) |c_ULTIMATE.start_main_~b~0#1.base|) .cse93))) (+ .cse87 .cse88 (select (select (store .cse89 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse90 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse87 .cse88 .cse91))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse92) .cse91))))))))) 27))) (or (forall ((v_ArrVal_1759 Int) (v_ArrVal_1766 Int) (v_ArrVal_1758 Int)) (= (let ((.cse117 (store (store (let ((.cse118 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) (+ 6 (select .cse118 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)))))) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) v_ArrVal_1758) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1759))) (let ((.cse108 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 16)) (.cse109 (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) (.cse112 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse117))) (let ((.cse111 (store (let ((.cse116 (select .cse112 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse114 (select .cse117 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse115 (select .cse116 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse113 (store .cse116 .cse109 (+ .cse114 .cse115)))) (store .cse113 .cse108 (+ .cse114 (select (select (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse113) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) .cse115))))) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 24) v_ArrVal_1766))) (let ((.cse104 (store .cse112 |c_ULTIMATE.start_main_~b~0#1.base| .cse111))) (let ((.cse110 (select .cse104 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse103 (select .cse111 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse106 (select .cse110 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse105 (store .cse110 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse103 .cse106)))) (let ((.cse107 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| .cse105) |c_ULTIMATE.start_main_~b~0#1.base|) .cse109))) (+ .cse103 (select (select (store .cse104 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse105 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16) (+ .cse103 .cse106 .cse107))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse108) .cse106 .cse107))))))))) 27)) .cse34)) .cse36)) (<= .cse70 2147483647))))) is different from true [2021-11-25 19:15:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:15:17,235 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-11-25 19:15:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-25 19:15:17,235 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.4) internal successors, (49), 35 states have internal predecessors, (49), 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 26 [2021-11-25 19:15:17,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:15:17,236 INFO L225 Difference]: With dead ends: 72 [2021-11-25 19:15:17,236 INFO L226 Difference]: Without dead ends: 51 [2021-11-25 19:15:17,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 308.7s TimeCoverageRelationStatistics Valid=213, Invalid=1829, Unknown=36, NotChecked=178, Total=2256 [2021-11-25 19:15:17,237 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:15:17,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 73 Unchecked, 2.1s Time] [2021-11-25 19:15:17,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-25 19:15:17,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-25 19:15:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.28) internal successors, (64), 50 states have internal predecessors, (64), 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) [2021-11-25 19:15:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2021-11-25 19:15:17,250 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 26 [2021-11-25 19:15:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:15:17,250 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2021-11-25 19:15:17,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.4) internal successors, (49), 35 states have internal predecessors, (49), 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) [2021-11-25 19:15:17,251 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2021-11-25 19:15:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-25 19:15:17,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:15:17,251 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:15:17,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-25 19:15:17,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-25 19:15:17,457 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:15:17,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:15:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1999437963, now seen corresponding path program 11 times [2021-11-25 19:15:17,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:15:17,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898871405] [2021-11-25 19:15:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:15:17,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:15:17,477 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:15:17,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223710714] [2021-11-25 19:15:17,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:15:17,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:15:17,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:15:17,479 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:15:17,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c716a3db-2701-4b1e-a40f-bc14443b6ddf/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 19:15:20,386 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:15:20,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:15:20,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-25 19:15:20,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:15:20,415 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 19:15:20,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 [2021-11-25 19:15:20,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 34 [2021-11-25 19:15:20,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 34 [2021-11-25 19:15:20,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 31 [2021-11-25 19:15:20,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:15:20,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:15:20,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 19:15:20,526 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:20,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:15:20,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:15:20,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 17 [2021-11-25 19:15:20,631 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:20,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:15:20,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:15:20,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 17 [2021-11-25 19:15:20,740 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:20,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 77 [2021-11-25 19:15:20,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 68 [2021-11-25 19:15:20,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 26 [2021-11-25 19:15:20,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,832 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:15:20,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2021-11-25 19:15:20,966 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:20,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 152 treesize of output 143 [2021-11-25 19:15:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:15:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:20,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 161 [2021-11-25 19:15:21,026 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:15:21,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 129 treesize of output 77 [2021-11-25 19:15:21,211 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:21,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 137 treesize of output 128 [2021-11-25 19:15:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 137 [2021-11-25 19:15:21,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 85 treesize of output 54 [2021-11-25 19:15:21,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,379 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:15:21,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 56 [2021-11-25 19:15:21,491 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-25 19:15:21,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 90 [2021-11-25 19:15:21,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,529 INFO L354 Elim1Store]: treesize reduction 42, result has 40.8 percent of original size [2021-11-25 19:15:21,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 102 [2021-11-25 19:15:21,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:21,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 55 treesize of output 41 [2021-11-25 19:15:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 86 treesize of output 61 [2021-11-25 19:15:22,826 INFO L354 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2021-11-25 19:15:22,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 170 treesize of output 157 [2021-11-25 19:15:22,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:15:22,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-25 19:15:22,845 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:15:22,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:22,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 187 treesize of output 102 [2021-11-25 19:15:23,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,011 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:15:23,014 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:15:23,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 68 [2021-11-25 19:15:23,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:15:23,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,143 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:15:23,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 79 [2021-11-25 19:15:23,323 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-25 19:15:23,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 133 treesize of output 118 [2021-11-25 19:15:23,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,402 INFO L354 Elim1Store]: treesize reduction 66, result has 40.0 percent of original size [2021-11-25 19:15:23,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 145 [2021-11-25 19:15:23,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 36 [2021-11-25 19:15:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:15:23,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 39 [2021-11-25 19:15:23,995 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:15:24,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:15:25,624 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-25 19:15:25,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 52 [2021-11-25 19:15:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:15:25,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:15:54,450 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (< (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (let ((.cse1 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (and (or (<= .cse1 2147483647) (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))))) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) (< 2147483647 .cse1)))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= c_~N~0 (+ .cse2 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (let ((.cse3 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (and (or (<= .cse3 2147483647) (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8))) (or (< 2147483647 .cse3) (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8))))) (< (+ .cse2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) is different from false [2021-11-25 19:16:35,936 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse58 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (let ((.cse55 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse56 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse0 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse22 (<= .cse57 2147483647)) (.cse15 (< 2147483647 .cse57)) (.cse1 (< 2147483647 .cse56)) (.cse8 (<= .cse56 2147483647)) (.cse23 (<= .cse55 2147483647)) (.cse30 (< 2147483647 .cse55))) (and (or (< 2147483647 .cse0) (and (or (and (or .cse1 (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse7 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse4 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse3 (select .cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse7 (- 34359738368)))) (.cse5 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse7 (- 34359738368))))) (let ((.cse2 (store .cse6 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse4) (+ .cse3 .cse5)))) (store .cse2 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse2) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse4)) .cse5))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8))) (or .cse8 (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse14 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse11 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse10 (select .cse13 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse14 (- 34359738368)))) (.cse12 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse14 (- 34359738368))))) (let ((.cse9 (store .cse13 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse11 (- 34359738368)) (+ .cse10 .cse12)))) (store .cse9 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse9) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse11 (- 34359738368))) .cse12))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse15) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse20 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse21 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse18 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse17 (select .cse20 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse21 (- 34359738368)))) (.cse19 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse21 (- 34359738368))))) (let ((.cse16 (store .cse20 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse18 (- 34359738368)) (+ .cse17 .cse19)))) (store .cse16 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse17 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse16) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse18 (- 34359738368))) .cse19))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse22)))) .cse23) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse28 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse29 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse26 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse25 (select .cse28 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse29))) (.cse27 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse29)))) (let ((.cse24 (store .cse28 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse26) (+ .cse25 .cse27)))) (store .cse24 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse24) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse26)) .cse27))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse30))) (or (<= .cse0 2147483647) (and (or (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse35 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse36 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse33 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse32 (select .cse35 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse36))) (.cse34 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse36)))) (let ((.cse31 (store .cse35 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse33) (+ .cse32 .cse34)))) (store .cse31 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse32 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse31) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse33)) .cse34))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse22) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse41 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse42 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse39 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse38 (select .cse41 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse42))) (.cse40 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse42)))) (let ((.cse37 (store .cse41 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse39) (+ .cse38 .cse40)))) (store .cse37 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse38 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse37) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse39)) .cse40))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse15)) .cse1) (or .cse8 (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse47 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse48 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse45 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse44 (select .cse47 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse48 (- 34359738368)))) (.cse46 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse48 (- 34359738368))))) (let ((.cse43 (store .cse47 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse45 (- 34359738368)) (+ .cse44 .cse46)))) (store .cse43 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse44 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse45 (- 34359738368))) .cse46))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) .cse23) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse53 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse54 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse51 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse50 (select .cse53 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse54))) (.cse52 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse54)))) (let ((.cse49 (store .cse53 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse51 (- 34359738368)) (+ .cse50 .cse52)))) (store .cse49 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse49) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse51 (- 34359738368))) .cse52))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) .cse30)))))))) (<= c_~N~0 (+ .cse58 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (< (+ .cse58 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse59 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= c_~N~0 (+ .cse59 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (let ((.cse115 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse116 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse117 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse60 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse90 (< 2147483647 .cse117)) (.cse83 (<= .cse117 2147483647)) (.cse61 (< 2147483647 .cse116)) (.cse76 (<= .cse116 2147483647)) (.cse68 (<= .cse115 2147483647)) (.cse75 (< 2147483647 .cse115))) (and (or (<= .cse60 2147483647) (and (or (and (or .cse61 (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse66 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse67 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse64 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse63 (select .cse66 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse67 (- 34359738368)))) (.cse65 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse67 (- 34359738368))))) (let ((.cse62 (store .cse66 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse64 (- 34359738368)) (+ .cse63 .cse65)))) (store .cse62 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse63 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse62) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse64 (- 34359738368))) .cse65))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse68) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse73 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse74 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse71 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse70 (select .cse73 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse74 (- 34359738368)))) (.cse72 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse74 (- 34359738368))))) (let ((.cse69 (store .cse73 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse71 (- 34359738368)) (+ .cse70 .cse72)))) (store .cse69 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse70 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse69) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse71 (- 34359738368))) .cse72))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) .cse75))) (or .cse76 (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse81 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse82 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse79 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse78 (select .cse81 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse82 (- 34359738368)))) (.cse80 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse82 (- 34359738368))))) (let ((.cse77 (store .cse81 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse79 (- 34359738368)) (+ .cse78 .cse80)))) (store .cse77 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse78 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse77) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse79 (- 34359738368))) .cse80))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))))) .cse83) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse88 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse89 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse86 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse85 (select .cse88 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse89))) (.cse87 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse89)))) (let ((.cse84 (store .cse88 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse86 (- 34359738368)) (+ .cse85 .cse87)))) (store .cse84 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse85 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse84) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse86 (- 34359738368))) .cse87))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse90))) (or (< 2147483647 .cse60) (and (or (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse95 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse96 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse93 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse92 (select .cse95 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse96))) (.cse94 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse96)))) (let ((.cse91 (store .cse95 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse93) (+ .cse92 .cse94)))) (store .cse91 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse92 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse91) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse93)) .cse94))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse90) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= (select (store (store (let ((.cse101 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse102 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse99 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse98 (select .cse101 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse102 (- 34359738368)))) (.cse100 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse102 (- 34359738368))))) (let ((.cse97 (store .cse101 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse99) (+ .cse98 .cse100)))) (store .cse97 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse98 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse97) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse99)) .cse100))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)) 8)) .cse83)) .cse61) (or .cse76 (and (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse107 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse108 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse105 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse104 (select .cse107 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse108))) (.cse106 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse108)))) (let ((.cse103 (store .cse107 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse105) (+ .cse104 .cse106)))) (store .cse103 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) (- 34359738368)) (+ .cse104 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse103) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse105)) .cse106))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) .cse68) (or (forall ((v_ArrVal_1903 Int) (v_ArrVal_1901 Int)) (= 8 (select (store (store (let ((.cse113 (select |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base|)) (.cse114 (* (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8))) (let ((.cse111 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse110 (select .cse113 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse114))) (.cse112 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse114)))) (let ((.cse109 (store .cse113 (+ |c_ULTIMATE.start_main_~c~0#1.offset| .cse111) (+ .cse110 .cse112)))) (store .cse109 (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8)) (+ .cse110 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~c~0#1.base| .cse109) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| .cse111)) .cse112))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| (* (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) (- 34359738368)) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16)))) .cse75)))))))) (< (+ .cse59 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) is different from false [2021-11-25 19:16:41,851 WARN L322 ript$VariableManager]: TermVariabe |aux_mod_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:41,902 WARN L322 ript$VariableManager]: TermVariabe |aux_mod_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:42,100 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:42,116 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:42,617 WARN L322 ript$VariableManager]: TermVariabe |aux_mod_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:42,673 WARN L322 ript$VariableManager]: TermVariabe |aux_mod_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:42,880 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:43,202 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:43,381 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:43,396 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:43,866 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:44,163 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:46,319 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= c_~N~0 (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (and (forall ((v_ArrVal_1903 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse1 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse1 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 1) c_~N~0) (= (let ((.cse3 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse8 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse8))) (let ((.cse7 (select .cse4 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse5 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (select .cse7 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse2 (store .cse7 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse5 .cse6)))) (store .cse2 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~c~0#1.base| .cse2) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse5 .cse6))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse3)) 8) (<= c_~N~0 (+ .cse1 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|)) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|) (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 0)))) (forall ((v_ArrVal_1903 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse9 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse9 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 1) c_~N~0) (= 8 (let ((.cse11 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse16 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse15 (select .cse13 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse12 (select .cse15 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse14 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse10 (store .cse15 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse12 .cse14)))) (store .cse10 .cse11 (+ .cse12 (select (select (store .cse13 |c_ULTIMATE.start_main_~c~0#1.base| .cse10) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse14))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse11))) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 2147483647) (<= c_~N~0 (+ .cse9 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|)) (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|))))) (< (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse17 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ .cse17 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (< (+ .cse17 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (and (forall ((|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| Int) (v_ArrVal_1903 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse25 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 0) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|) (= (let ((.cse19 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse24 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse21 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24))) (let ((.cse23 (select .cse21 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse20 (select .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse22 (select .cse23 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse18 (store .cse23 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse20 .cse22)))) (store .cse18 .cse19 (+ .cse20 (select (select (store .cse21 |c_ULTIMATE.start_main_~c~0#1.base| .cse18) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse22))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse19)) 8) (<= c_~N~0 (+ .cse25 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|)) (< (+ .cse25 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 1) c_~N~0)))) (forall ((v_ArrVal_1903 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse26 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|) (< (+ .cse26 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 1) c_~N~0) (<= c_~N~0 (+ .cse26 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|)) (= (let ((.cse28 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse33 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse33))) (let ((.cse32 (select .cse30 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse29 (select .cse33 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse31 (select .cse32 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse27 (store .cse32 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse29 .cse31)))) (store .cse27 .cse28 (+ .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~c~0#1.base| .cse27) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse31))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse28)) 8) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 2147483647))))) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) is different from false [2021-11-25 19:16:46,675 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:46,700 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:47,514 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:47,967 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:48,411 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:48,920 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:49,319 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:49,345 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:50,012 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:50,032 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:50,693 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:51,144 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:51,382 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:51,844 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:52,079 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:52,111 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:54,739 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse34 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (and (or (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= c_~N~0 (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (< (+ .cse0 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (and (forall ((v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse1 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse1 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 1) c_~N~0) (= (let ((.cse3 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse8 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse8))) (let ((.cse7 (select .cse4 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse5 (select .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (select .cse7 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse2 (store .cse7 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse5 .cse6)))) (store .cse2 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~c~0#1.base| .cse2) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse5 .cse6))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse3)) 8) (<= c_~N~0 (+ .cse1 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|)) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|) (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 0)))) (forall ((v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse9 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse9 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 1) c_~N~0) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 2147483647) (<= c_~N~0 (+ .cse9 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|)) (= (let ((.cse11 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse16 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse15 (select .cse12 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse13 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse14 (select .cse15 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse10 (store .cse15 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse13 .cse14)))) (store .cse10 .cse11 (+ (select (select (store .cse12 |c_ULTIMATE.start_main_~c~0#1.base| .cse10) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse13 .cse14))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse11)) 8) (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|))))) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse17 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ .cse17 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (and (forall ((v_ArrVal_1903 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse25 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|) (= (let ((.cse19 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse24 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24))) (let ((.cse23 (select .cse20 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse21 (select .cse23 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse22 (select .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse18 (store .cse23 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse21 .cse22)))) (store .cse18 .cse19 (+ (select (select (store .cse20 |c_ULTIMATE.start_main_~c~0#1.base| .cse18) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse21 .cse22))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse19)) 8) (< (+ .cse25 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 1) c_~N~0) (<= c_~N~0 (+ .cse25 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|)) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 2147483647)))) (forall ((|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| Int) (v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse33 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 0) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|) (= (let ((.cse27 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse32 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32))) (let ((.cse31 (select .cse30 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse28 (select .cse31 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse29 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse26 (store .cse31 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse28 .cse29)))) (store .cse26 .cse27 (+ .cse28 .cse29 (select (select (store .cse30 |c_ULTIMATE.start_main_~c~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8))))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse27)) 8) (<= c_~N~0 (+ .cse33 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|)) (< (+ .cse33 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 1) c_~N~0))))) (< (+ .cse17 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (< 2147483647 .cse34)) (or (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse35 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= c_~N~0 (+ .cse35 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (and (forall ((v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse36 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse36 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 1) c_~N~0) (= 8 (let ((.cse38 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse43 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43))) (let ((.cse42 (select .cse40 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse39 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (select .cse42 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse37 (store .cse42 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse39 .cse41)))) (store .cse37 .cse38 (+ .cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~c~0#1.base| .cse37) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse41))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse38))) (<= c_~N~0 (+ .cse36 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|)) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2|) (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_2| 0)))) (forall ((v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse44 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< (+ .cse44 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 1) c_~N~0) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 2147483647) (<= c_~N~0 (+ .cse44 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|)) (= (let ((.cse46 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse51 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse47 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse51))) (let ((.cse50 (select .cse47 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse48 (select .cse50 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse49 (select .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse45 (store .cse50 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse48 .cse49)))) (store .cse45 .cse46 (+ (select (select (store .cse47 |c_ULTIMATE.start_main_~c~0#1.base| .cse45) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse48 .cse49))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset| (- 34359738368)) v_ArrVal_1903) .cse46)) 8) (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_1|))))) (< (+ .cse35 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse68 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (and (forall ((|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| Int) (v_ArrVal_1903 Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse59 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (< |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 0) (< 2147483647 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|) (= (let ((.cse53 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse58 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1894))) (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse58))) (let ((.cse57 (select .cse55 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse54 (select .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse56 (select .cse57 |c_ULTIMATE.start_main_~c~0#1.offset|))) (let ((.cse52 (store .cse57 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse54 .cse56)))) (store .cse52 .cse53 (+ .cse54 (select (select (store .cse55 |c_ULTIMATE.start_main_~c~0#1.base| .cse52) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse56))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse53)) 8) (<= c_~N~0 (+ .cse59 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4|)) (< (+ .cse59 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_4| 1) c_~N~0)))) (forall ((v_ArrVal_1903 Int) (|v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| Int) (v_ArrVal_1893 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1894 Int) (v_ArrVal_1901 Int)) (let ((.cse60 (* 4294967296 |aux_div_ULTIMATE.start_main_~i~0#1_45|))) (or (<= 4294967296 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|) (< (+ .cse60 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 1) c_~N~0) (= 8 (let ((.cse62 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 16))) (select (store (store (let ((.cse67 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) (- 34359738368)) v_ArrVal_1893) (+ (* (mod |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset| (- 34359738368)) v_ArrVal_1894))) (let ((.cse64 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse67))) (let ((.cse66 (select .cse64 |c_ULTIMATE.start_main_~c~0#1.base|))) (let ((.cse63 (select .cse66 |c_ULTIMATE.start_main_~c~0#1.offset|)) (.cse65 (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse61 (store .cse66 (+ |c_ULTIMATE.start_main_~c~0#1.offset| 8) (+ .cse63 .cse65)))) (store .cse61 .cse62 (+ .cse63 (select (select (store .cse64 |c_ULTIMATE.start_main_~c~0#1.base| .cse61) |c_ULTIMATE.start_main_~b~0#1.base|) (+ |c_ULTIMATE.start_main_~b~0#1.offset| 8)) .cse65))))))) (+ |c_ULTIMATE.start_main_~c~0#1.offset| 24) v_ArrVal_1901) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~c~0#1.offset|) v_ArrVal_1903) .cse62))) (<= c_~N~0 (+ .cse60 |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3|)) (<= |v_aux_mod_ULTIMATE.start_main_~i~0#1_45_3| 2147483647))))) (<= c_~N~0 (+ .cse68 |aux_mod_ULTIMATE.start_main_~i~0#1_45|)) (< (+ .cse68 |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) c_~N~0) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (<= .cse34 2147483647)))) is different from false [2021-11-25 19:16:56,862 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:57,538 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:57,839 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:16:57,868 WARN L322 ript$VariableManager]: TermVariabe |aux_div_ULTIMATE.start_main_~i~0#1_45| not constructed by VariableManager. Cannot ensure absence of name clashes.