./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh --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 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:43:34,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:43:34,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:43:34,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:43:34,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:43:34,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:43:34,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:43:34,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:43:34,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:43:34,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:43:34,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:43:34,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:43:34,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:43:34,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:43:34,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:43:34,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:43:34,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:43:34,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:43:34,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:43:34,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:43:34,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:43:34,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:43:34,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:43:34,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:43:34,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:43:34,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:43:34,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:43:34,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:43:34,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:43:34,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:43:34,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:43:34,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:43:34,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:43:34,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:43:34,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:43:34,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:43:34,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:43:34,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:43:34,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:43:34,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:43:34,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:43:34,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:43:35,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:43:35,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:43:35,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:43:35,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:43:35,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:43:35,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:43:35,008 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:43:35,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:43:35,009 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:43:35,010 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:43:35,010 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:43:35,010 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:43:35,010 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:43:35,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:43:35,011 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:43:35,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:43:35,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:43:35,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:43:35,013 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:43:35,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:43:35,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:43:35,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:43:35,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:43:35,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:43:35,014 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:43:35,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:43:35,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:43:35,014 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:43:35,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:43:35,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:43:35,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:43:35,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2022-12-14 08:43:35,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:43:35,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:43:35,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:43:35,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:43:35,251 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:43:35,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-12-14 08:43:37,915 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:43:38,133 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:43:38,134 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-12-14 08:43:38,155 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/data/370b6d1e0/0a6048e342aa42718ceda71d57807c27/FLAGd07230857 [2022-12-14 08:43:38,165 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/data/370b6d1e0/0a6048e342aa42718ceda71d57807c27 [2022-12-14 08:43:38,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:43:38,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:43:38,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:43:38,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:43:38,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:43:38,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3791473b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38, skipping insertion in model container [2022-12-14 08:43:38,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:43:38,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:43:38,556 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-12-14 08:43:38,640 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:43:38,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-12-14 08:43:38,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:43:38,660 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:43:38,681 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-12-14 08:43:38,730 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:43:38,731 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-12-14 08:43:38,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:43:38,762 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:43:38,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38 WrapperNode [2022-12-14 08:43:38,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:43:38,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:43:38,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:43:38,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:43:38,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,833 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 08:43:38,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:43:38,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:43:38,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:43:38,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:43:38,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:43:38,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:43:38,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:43:38,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:43:38,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (1/1) ... [2022-12-14 08:43:38,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:43:38,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:38,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:43:38,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:43:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:43:38,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 08:43:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:43:38,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:43:38,979 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:43:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:43:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:43:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:43:38,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:43:38,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:43:39,168 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:43:39,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:43:40,512 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:43:40,859 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:43:40,859 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-12-14 08:43:40,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:43:40 BoogieIcfgContainer [2022-12-14 08:43:40,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:43:40,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:43:40,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:43:40,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:43:40,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:43:38" (1/3) ... [2022-12-14 08:43:40,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df126d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:43:40, skipping insertion in model container [2022-12-14 08:43:40,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:43:38" (2/3) ... [2022-12-14 08:43:40,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df126d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:43:40, skipping insertion in model container [2022-12-14 08:43:40,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:43:40" (3/3) ... [2022-12-14 08:43:40,871 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-2.i [2022-12-14 08:43:40,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:43:40,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:43:40,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:43:40,931 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c7d5094, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:43:40,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:43:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:43:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:43:40,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:43:40,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:43:40,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:43:40,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:43:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-12-14 08:43:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:43:40,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206614393] [2022-12-14 08:43:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:40,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:43:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:41,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:43:41,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206614393] [2022-12-14 08:43:41,088 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 08:43:41,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583391562] [2022-12-14 08:43:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:41,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:43:41,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:41,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:43:41,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:43:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:41,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 08:43:41,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:43:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:43:41,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:43:41,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583391562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:43:41,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:43:41,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:43:41,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897457086] [2022-12-14 08:43:41,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:43:41,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:43:41,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:43:41,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:43:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:43:41,326 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:43:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:43:41,979 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-12-14 08:43:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:43:41,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 08:43:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:43:41,989 INFO L225 Difference]: With dead ends: 329 [2022-12-14 08:43:41,990 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 08:43:41,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:43:41,994 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:43:41,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:43:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 08:43:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 08:43:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:43:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 08:43:42,030 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 08:43:42,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:43:42,030 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 08:43:42,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:43:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 08:43:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:43:42,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:43:42,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:43:42,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:43:42,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 08:43:42,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:43:42,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:43:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-12-14 08:43:42,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:43:42,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640101763] [2022-12-14 08:43:42,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:42,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:43:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:42,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:43:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640101763] [2022-12-14 08:43:42,279 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 08:43:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407041296] [2022-12-14 08:43:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:42,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:43:42,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:42,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:43:42,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:43:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:42,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:43:42,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:43:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:43:42,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:43:42,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407041296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:43:42,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:43:42,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:43:42,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023741898] [2022-12-14 08:43:42,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:43:42,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:43:42,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:43:42,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:43:42,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:43:42,496 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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) [2022-12-14 08:43:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:43:43,379 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 08:43:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:43:43,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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 17 [2022-12-14 08:43:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:43:43,383 INFO L225 Difference]: With dead ends: 342 [2022-12-14 08:43:43,383 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 08:43:43,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:43:43,384 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:43:43,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 08:43:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 08:43:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 08:43:43,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:43:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 08:43:43,395 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 08:43:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:43:43,396 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 08:43:43,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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) [2022-12-14 08:43:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 08:43:43,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 08:43:43,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:43:43,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:43:43,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:43:43,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:43:43,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:43:43,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:43:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-12-14 08:43:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:43:43,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403985166] [2022-12-14 08:43:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:43:43,775 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:43:43,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898366049] [2022-12-14 08:43:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:43:43,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:43:43,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:43:43,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:43:43,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:43:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:43:44,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:43:44,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:43:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:43:44,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:43:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:43:44,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:43:44,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403985166] [2022-12-14 08:43:44,754 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:43:44,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898366049] [2022-12-14 08:43:44,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898366049] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:43:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2119942460] [2022-12-14 08:43:44,769 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 08:43:44,769 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:43:44,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:43:44,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:43:44,776 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:43:44,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,872 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 08:43:44,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 08:43:44,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,896 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 08:43:44,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 08:43:44,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:43:44,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,961 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 08:43:44,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 08:43:44,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 08:43:44,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:44,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:43:44,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 08:43:45,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:43:45,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 08:43:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 08:43:45,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:43:45,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:43:45,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:43:45,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:43:45,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 08:43:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:43:45,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 08:43:45,920 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:43:53,993 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:44:02,599 WARN L233 SmtUtils]: Spent 6.47s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:44:02,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2119942460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:02,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:44:02,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 08:44:02,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980886218] [2022-12-14 08:44:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:02,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:44:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:44:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 08:44:02,606 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:44:07,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:44:09,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:44:11,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:44:14,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:14,301 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-12-14 08:44:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:44:14,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-12-14 08:44:14,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:14,302 INFO L225 Difference]: With dead ends: 313 [2022-12-14 08:44:14,302 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 08:44:14,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 08:44:14,303 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:14,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 08:44:14,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 08:44:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-12-14 08:44:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:44:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 08:44:14,314 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 08:44:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:14,315 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 08:44:14,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:44:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 08:44:14,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 08:44:14,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:14,316 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:14,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:44:14,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:44:14,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:14,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-12-14 08:44:14,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:14,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390502401] [2022-12-14 08:44:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:14,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:14,669 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:44:14,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784625522] [2022-12-14 08:44:14,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:14,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:44:14,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:44:14,670 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:44:14,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:44:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:15,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:44:15,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:44:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:44:15,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:44:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:44:15,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:15,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390502401] [2022-12-14 08:44:15,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:44:15,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784625522] [2022-12-14 08:44:15,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784625522] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:44:15,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1905746776] [2022-12-14 08:44:15,537 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 08:44:15,537 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:44:15,537 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:44:15,538 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:44:15,538 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:44:15,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,633 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 08:44:15,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 08:44:15,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 08:44:15,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,682 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 08:44:15,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 08:44:15,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:44:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,729 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 08:44:15,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 08:44:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:44:15,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:44:15,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 08:44:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:15,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 08:44:16,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 08:44:16,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:44:16,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:44:16,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:44:16,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:44:16,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:16,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:44:16,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:44:16,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,327 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 08:44:16,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 08:44:16,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,383 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 08:44:16,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 08:44:16,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:16,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:44:16,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:44:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 08:44:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:16,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 08:44:16,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:44:17,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:17,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:17,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:44:17,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:44:17,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:44:17,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:44:17,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,269 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 08:44:17,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 08:44:17,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:44:17,322 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 08:44:17,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 08:44:17,560 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 08:44:17,628 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 08:44:25,367 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:44:34,889 WARN L233 SmtUtils]: Spent 7.45s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:44:44,938 WARN L233 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:44:56,687 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:45:09,281 WARN L233 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:45:10,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1905746776] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:10,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 08:45:10,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 08:45:10,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207568871] [2022-12-14 08:45:10,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:10,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 08:45:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:45:10,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 08:45:10,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 08:45:10,047 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 08:45:16,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:18,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:20,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:22,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:24,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:26,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:30,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:32,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:34,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 08:45:38,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:38,058 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 08:45:38,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 08:45:38,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 08:45:38,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:38,059 INFO L225 Difference]: With dead ends: 315 [2022-12-14 08:45:38,060 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 08:45:38,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 55.8s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-12-14 08:45:38,061 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:38,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 24.5s Time] [2022-12-14 08:45:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 08:45:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 08:45:38,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 08:45:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 08:45:38,077 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 08:45:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:38,078 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 08:45:38,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 08:45:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 08:45:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 08:45:38,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:38,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:38,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:45:38,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:45:38,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:45:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-12-14 08:45:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:45:38,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146151657] [2022-12-14 08:45:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:45:38,420 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:45:38,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316152677] [2022-12-14 08:45:38,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:38,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:45:38,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:45:38,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:45:38,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06fcca8c-0f8a-4b8d-b1a9-645a1e101de9/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:45:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:39,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:45:39,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:45:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 08:45:39,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:45:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 08:45:39,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:45:39,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146151657] [2022-12-14 08:45:39,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:45:39,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316152677] [2022-12-14 08:45:39,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316152677] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:45:39,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2030755246] [2022-12-14 08:45:39,351 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 08:45:39,351 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:45:39,351 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:45:39,351 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:45:39,351 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:45:39,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,399 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 08:45:39,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 08:45:39,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 08:45:39,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:45:39,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,430 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:45:39,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 08:45:39,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,462 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 08:45:39,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 08:45:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:45:39,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 08:45:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,526 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 08:45:39,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 08:45:39,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:45:39,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 08:45:39,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 08:45:39,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 08:45:39,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:45:39,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 08:45:39,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:45:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:39,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:45:39,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:45:40,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,052 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 08:45:40,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 08:45:40,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,126 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 08:45:40,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 08:45:40,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 08:45:40,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 08:45:40,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:45:40,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:45:40,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:45:40,348 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:45:40,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 08:45:40,375 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 08:45:40,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 08:45:40,401 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:45:40,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 08:45:40,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 08:45:40,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 08:45:40,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 08:45:40,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 08:45:40,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 08:45:40,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 08:45:40,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:45:40,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 08:45:40,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 08:45:40,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 08:45:41,591 INFO L217 Elim1Store]: Index analysis took 706 ms [2022-12-14 08:45:45,893 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 08:45:45,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-12-14 08:45:46,857 INFO L217 Elim1Store]: Index analysis took 810 ms [2022-12-14 08:45:47,589 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 08:45:47,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-12-14 08:49:05,794 WARN L233 SmtUtils]: Spent 3.30m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 08:49:05,794 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 08:49:05,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-12-14 08:49:06,253 INFO L217 Elim1Store]: Index analysis took 214 ms [2022-12-14 08:50:45,815 WARN L233 SmtUtils]: Spent 1.66m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 08:50:45,815 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 08:50:45,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-12-14 08:50:50,690 INFO L217 Elim1Store]: Index analysis took 4063 ms