./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/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_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/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_4230f3da-717c-4a40-bc3d-10eb374c78de/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 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f --- 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 09:13:44,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:13:44,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:13:44,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:13:44,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:13:44,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:13:44,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:13:44,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:13:44,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:13:44,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:13:44,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:13:44,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:13:44,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:13:44,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:13:44,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:13:44,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:13:44,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:13:44,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:13:44,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:13:44,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:13:44,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:13:44,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:13:44,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:13:44,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:13:44,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:13:44,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:13:44,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:13:44,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:13:44,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:13:44,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:13:44,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:13:44,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:13:44,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:13:44,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:13:44,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:13:44,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:13:44,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:13:44,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:13:44,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:13:44,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:13:44,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:13:44,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:13:45,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:13:45,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:13:45,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:13:45,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:13:45,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:13:45,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:13:45,015 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:13:45,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:13:45,016 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:13:45,027 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:13:45,027 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:13:45,027 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:13:45,027 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:13:45,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:13:45,028 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:13:45,028 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:13:45,028 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:13:45,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:13:45,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:13:45,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:13:45,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:13:45,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:13:45,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:13:45,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:13:45,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:13:45,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:13:45,031 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:13:45,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:13:45,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:13:45,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:13:45,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:13:45,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:13:45,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:13:45,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:13:45,032 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:13:45,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:13:45,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:13:45,033 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:13:45,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:13:45,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:13:45,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:13:45,034 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_4230f3da-717c-4a40-bc3d-10eb374c78de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a08b66a27502bd32ab373960778294a6ce88841aa5560ae4bca712e152c143f [2022-12-14 09:13:45,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:13:45,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:13:45,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:13:45,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:13:45,240 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:13:45,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-12-14 09:13:47,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:13:48,035 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:13:48,035 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i [2022-12-14 09:13:48,046 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/data/0cbbe1c9c/1b7440ed871a4e4b91f7f7724ecde116/FLAGcba28f794 [2022-12-14 09:13:48,361 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/data/0cbbe1c9c/1b7440ed871a4e4b91f7f7724ecde116 [2022-12-14 09:13:48,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:13:48,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:13:48,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:13:48,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:13:48,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:13:48,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:48,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633c131c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48, skipping insertion in model container [2022-12-14 09:13:48,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:48,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:13:48,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:13:48,665 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_4230f3da-717c-4a40-bc3d-10eb374c78de/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-12-14 09:13:48,763 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:13:48,766 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_4230f3da-717c-4a40-bc3d-10eb374c78de/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-12-14 09:13:48,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:13:48,790 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:13:48,816 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_4230f3da-717c-4a40-bc3d-10eb374c78de/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[33021,33034] [2022-12-14 09:13:48,879 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 09:13:48,881 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_4230f3da-717c-4a40-bc3d-10eb374c78de/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-2.i[49681,49694] [2022-12-14 09:13:48,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:13:48,919 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:13:48,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48 WrapperNode [2022-12-14 09:13:48,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:13:48,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:13:48,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:13:48,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:13:48,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:48,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,011 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 09:13:49,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:13:49,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:13:49,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:13:49,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:13:49,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:13:49,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:13:49,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:13:49,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:13:49,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (1/1) ... [2022-12-14 09:13:49,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:13:49,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:49,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:13:49,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 09:13:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 09:13:49,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:13:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:13:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:13:49,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:13:49,350 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:13:49,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:13:50,784 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:13:51,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:13:51,166 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-12-14 09:13:51,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:13:51 BoogieIcfgContainer [2022-12-14 09:13:51,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:13:51,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:13:51,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:13:51,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:13:51,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:13:48" (1/3) ... [2022-12-14 09:13:51,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2ba5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:13:51, skipping insertion in model container [2022-12-14 09:13:51,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:13:48" (2/3) ... [2022-12-14 09:13:51,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2ba5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:13:51, skipping insertion in model container [2022-12-14 09:13:51,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:13:51" (3/3) ... [2022-12-14 09:13:51,177 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-2.i [2022-12-14 09:13:51,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:13:51,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:13:51,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:13:51,240 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;@c65559e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:13:51,240 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:13:51,244 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 09:13:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:13:51,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:51,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:13:51,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:13:51,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-12-14 09:13:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:51,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979781021] [2022-12-14 09:13:51,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:51,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:51,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:51,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979781021] [2022-12-14 09:13:51,377 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 09:13:51,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487705913] [2022-12-14 09:13:51,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:51,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:51,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:51,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:51,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:13:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:51,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:13:51,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:51,578 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 09:13:51,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:13:51,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487705913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:51,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:51,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:13:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571739786] [2022-12-14 09:13:51,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:51,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:13:51,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:51,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:13:51,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:13:51,609 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 09:13:52,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:52,241 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-12-14 09:13:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:13:52,245 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 09:13:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:52,253 INFO L225 Difference]: With dead ends: 329 [2022-12-14 09:13:52,253 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 09:13:52,255 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 09:13:52,257 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 09:13:52,258 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 09:13:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 09:13:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 09:13:52,296 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 09:13:52,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 09:13:52,300 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 09:13:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:52,300 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 09:13:52,301 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 09:13:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 09:13:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:13:52,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:52,303 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 09:13:52,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:13:52,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 09:13:52,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:13:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-12-14 09:13:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:52,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016314723] [2022-12-14 09:13:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:52,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:52,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016314723] [2022-12-14 09:13:52,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 09:13:52,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636422160] [2022-12-14 09:13:52,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:52,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:52,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:52,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:52,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:13:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:52,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:13:52,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:52,763 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 09:13:52,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:13:52,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636422160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:13:52,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:13:52,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:13:52,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952514927] [2022-12-14 09:13:52,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:13:52,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:13:52,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:13:52,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:13:52,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:13:52,765 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 09:13:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:13:53,597 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 09:13:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:13:53,600 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 09:13:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:13:53,601 INFO L225 Difference]: With dead ends: 342 [2022-12-14 09:13:53,601 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 09:13:53,602 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 09:13:53,602 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, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:13:53,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 09:13:53,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 09:13:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 09:13:53,612 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 09:13:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 09:13:53,613 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 09:13:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:13:53,613 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 09:13:53,614 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 09:13:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 09:13:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 09:13:53,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:13:53,615 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 09:13:53,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 09:13:53,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:53,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:13:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:13:53,819 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-12-14 09:13:53,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:13:53,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380596680] [2022-12-14 09:13:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:53,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:13:54,041 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:13:54,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667200609] [2022-12-14 09:13:54,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:13:54,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:13:54,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:13:54,043 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:13:54,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:13:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:13:54,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:13:54,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:13:54,965 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 09:13:54,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:13:55,022 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 09:13:55,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:13:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380596680] [2022-12-14 09:13:55,023 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:13:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667200609] [2022-12-14 09:13:55,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667200609] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:13:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711843072] [2022-12-14 09:13:55,037 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 09:13:55,038 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:13:55,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:13:55,044 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:13:55,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:13:55,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,150 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:13:55,151 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 09:13:55,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,175 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:13:55,175 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 09:13:55,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,211 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 09:13:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,242 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:13:55,243 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 09:13:55,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,257 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 09:13:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:13:55,272 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 09:13:55,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,292 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 09:13:55,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,658 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 09:13:55,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:55,717 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 09:13:55,764 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 09:13:55,784 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 09:13:56,142 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 09:13:56,156 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 09:13:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,196 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 09:13:56,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:13:56,236 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 09:13:56,281 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:04,151 WARN L233 SmtUtils]: Spent 5.12s 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 09:14:11,822 WARN L233 SmtUtils]: Spent 5.60s 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 09:14:11,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [711843072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:14:11,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 09:14:11,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 09:14:11,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487505183] [2022-12-14 09:14:11,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:14:11,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:14:11,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:14:11,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:14:11,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 09:14:11,827 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 09:14:16,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:14:18,897 WARN L539 Checker$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 09:14:20,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:14:23,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:14:24,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:14:24,267 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-12-14 09:14:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:14:24,268 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 09:14:24,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:14:24,269 INFO L225 Difference]: With dead ends: 313 [2022-12-14 09:14:24,269 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 09:14:24,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 09:14:24,270 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s 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, 9.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:14:24,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-12-14 09:14:24,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 09:14:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-12-14 09:14:24,282 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 09:14:24,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 09:14:24,283 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 09:14:24,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:14:24,283 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 09:14:24,283 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 09:14:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 09:14:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 09:14:24,284 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:14:24,285 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 09:14:24,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:14:24,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:24,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:14:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:14:24,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-12-14 09:14:24,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:14:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275907608] [2022-12-14 09:14:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:24,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:14:24,652 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:14:24,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152219907] [2022-12-14 09:14:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:14:24,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:14:24,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:14:24,654 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:14:24,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:14:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:14:25,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:14:25,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:14:25,454 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 09:14:25,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:14:25,536 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 09:14:25,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:14:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275907608] [2022-12-14 09:14:25,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:14:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152219907] [2022-12-14 09:14:25,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152219907] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:14:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1778310834] [2022-12-14 09:14:25,541 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 09:14:25,541 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:14:25,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:14:25,541 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:14:25,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:14:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,649 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:14:25,649 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 09:14:25,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,658 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 09:14:25,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,698 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:14:25,698 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 09:14:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,711 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 09:14:25,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,743 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:14:25,743 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 09:14:25,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,758 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 09:14:25,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,766 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:14:25,767 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 09:14:25,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:25,989 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 09:14:26,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,016 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 09:14:26,040 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 09:14:26,056 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 09:14:26,075 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 09:14:26,083 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 09:14:26,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,129 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 09:14:26,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,166 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 09:14:26,213 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 09:14:26,235 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 09:14:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,289 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 09:14:26,289 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 09:14:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,352 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 09:14:26,353 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 09:14:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,390 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 09:14:26,837 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 09:14:26,850 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 09:14:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,881 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 09:14:26,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,911 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 09:14:26,957 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 09:14:26,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,005 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 09:14:27,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,040 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 09:14:27,060 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 09:14:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,110 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 09:14:27,133 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 09:14:27,160 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 09:14:27,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,214 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 09:14:27,214 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 09:14:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:14:27,277 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 09:14:27,278 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 09:14:27,542 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 09:14:27,616 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:14:35,518 WARN L233 SmtUtils]: Spent 5.17s 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 09:14:43,453 WARN L233 SmtUtils]: Spent 5.86s 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 09:14:52,982 WARN L233 SmtUtils]: Spent 5.43s 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 09:15:05,495 WARN L233 SmtUtils]: Spent 6.39s 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 09:15:17,503 WARN L233 SmtUtils]: Spent 5.85s 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 09:15:18,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1778310834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:15:18,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 09:15:18,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 09:15:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834091644] [2022-12-14 09:15:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:15:18,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:15:18,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:15:18,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:15:18,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 09:15:18,991 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 09:15:23,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:15:25,353 WARN L539 Checker$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 09:15:27,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:15:29,424 WARN L539 Checker$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 09:15:31,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:15:33,506 WARN L539 Checker$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 09:15:35,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 09:15:37,554 WARN L539 Checker$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 09:15:39,570 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 09:15:44,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:15:44,323 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 09:15:44,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 09:15:44,324 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 09:15:44,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:15:44,325 INFO L225 Difference]: With dead ends: 315 [2022-12-14 09:15:44,325 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 09:15:44,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 53.0s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-12-14 09:15:44,326 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s 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, 23.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:15:44,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 23.7s Time] [2022-12-14 09:15:44,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 09:15:44,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 09:15:44,346 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 09:15:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 09:15:44,347 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 09:15:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:15:44,347 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 09:15:44,348 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 09:15:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 09:15:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 09:15:44,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:15:44,349 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 09:15:44,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:15:44,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:44,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:15:44,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:15:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-12-14 09:15:44,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:15:44,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305161757] [2022-12-14 09:15:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:44,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:15:44,700 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:15:44,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624814740] [2022-12-14 09:15:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:15:44,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:15:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:15:44,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:15:44,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4230f3da-717c-4a40-bc3d-10eb374c78de/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:15:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:15:45,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:15:45,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:15:45,599 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 09:15:45,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:15:45,656 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 09:15:45,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:15:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305161757] [2022-12-14 09:15:45,656 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:15:45,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624814740] [2022-12-14 09:15:45,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624814740] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:15:45,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1419584058] [2022-12-14 09:15:45,659 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 09:15:45,659 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:15:45,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:15:45,660 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:15:45,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:15:45,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,719 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:15:45,719 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 09:15:45,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,728 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 09:15:45,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:15:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,756 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 09:15:45,756 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 09:15:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,789 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:15:45,790 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 09:15:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,806 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 09:15:45,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,819 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 09:15:45,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:45,854 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:15:45,855 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 09:15:46,050 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 09:15:46,064 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 09:15:46,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,102 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 09:15:46,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,132 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 09:15:46,166 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 09:15:46,178 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 09:15:46,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,228 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 09:15:46,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,262 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 09:15:46,307 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 09:15:46,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,365 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 09:15:46,365 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 09:15:46,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,431 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 09:15:46,432 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 09:15:46,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,470 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 09:15:46,504 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 09:15:46,613 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 09:15:46,616 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 09:15:46,620 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 09:15:46,656 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 09:15:46,656 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 09:15:46,682 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 09:15:46,683 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 09:15:46,705 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 09:15:46,705 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 09:15:46,732 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 09:15:46,737 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 09:15:46,743 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 09:15:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,805 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 09:15:46,831 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 09:15:46,849 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 09:15:46,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:15:46,981 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 09:15:46,998 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 09:15:47,020 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 09:15:48,205 INFO L217 Elim1Store]: Index analysis took 989 ms [2022-12-14 09:15:51,712 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 09:15:51,713 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 09:15:52,466 INFO L217 Elim1Store]: Index analysis took 627 ms [2022-12-14 09:15:53,327 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 09:15:53,328 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 09:19:01,526 WARN L233 SmtUtils]: Spent 3.13m 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 09:19:01,526 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 09:19:01,527 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 09:19:02,033 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-12-14 09:20:21,530 WARN L233 SmtUtils]: Spent 1.32m 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 09:20:21,531 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 09:20:21,531 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 09:20:25,042 INFO L217 Elim1Store]: Index analysis took 2683 ms