./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/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_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/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_8fa95d40-9ba2-496f-8579-e757cae817f8/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 ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 --- 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 13:21:34,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:21:34,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:21:34,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:21:35,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:21:35,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:21:35,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:21:35,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:21:35,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:21:35,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:21:35,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:21:35,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:21:35,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:21:35,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:21:35,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:21:35,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:21:35,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:21:35,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:21:35,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:21:35,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:21:35,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:21:35,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:21:35,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:21:35,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:21:35,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:21:35,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:21:35,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:21:35,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:21:35,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:21:35,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:21:35,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:21:35,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:21:35,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:21:35,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:21:35,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:21:35,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:21:35,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:21:35,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:21:35,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:21:35,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:21:35,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:21:35,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:21:35,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:21:35,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:21:35,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:21:35,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:21:35,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:21:35,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:21:35,050 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:21:35,050 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:21:35,050 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:21:35,050 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:21:35,050 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:21:35,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:21:35,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:21:35,051 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:21:35,051 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:21:35,051 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:21:35,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:21:35,052 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:21:35,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:21:35,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:21:35,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:21:35,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:21:35,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:21:35,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:21:35,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:21:35,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:21:35,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:21:35,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:21:35,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:21:35,055 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:21:35,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:21:35,056 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_8fa95d40-9ba2-496f-8579-e757cae817f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad1bbae792ec9c8e2e546dc04f3672720af98ce14b9bd37d0d7647e79ce45565 [2022-12-14 13:21:35,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:21:35,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:21:35,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:21:35,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:21:35,237 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:21:35,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-12-14 13:21:37,749 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:21:37,973 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:21:37,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i [2022-12-14 13:21:37,984 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/data/e047c92f3/70409a66443e4a3fb48b4287afbca1e2/FLAG014140331 [2022-12-14 13:21:38,324 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/data/e047c92f3/70409a66443e4a3fb48b4287afbca1e2 [2022-12-14 13:21:38,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:21:38,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:21:38,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:21:38,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:21:38,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:21:38,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e98ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38, skipping insertion in model container [2022-12-14 13:21:38,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:21:38,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:21:38,636 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_8fa95d40-9ba2-496f-8579-e757cae817f8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-12-14 13:21:38,737 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:21:38,739 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_8fa95d40-9ba2-496f-8579-e757cae817f8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-12-14 13:21:38,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:21:38,761 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:21:38,783 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_8fa95d40-9ba2-496f-8579-e757cae817f8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[33021,33034] [2022-12-14 13:21:38,825 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:21:38,826 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_8fa95d40-9ba2-496f-8579-e757cae817f8/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-2.i[49681,49694] [2022-12-14 13:21:38,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:21:38,860 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:21:38,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38 WrapperNode [2022-12-14 13:21:38,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:21:38,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:21:38,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:21:38,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:21:38,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,962 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 13:21:38,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:21:38,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:21:38,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:21:38,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:21:38,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:38,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:21:39,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:21:39,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:21:39,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:21:39,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (1/1) ... [2022-12-14 13:21:39,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:21:39,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:21:39,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:21:39,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:21:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:21:39,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:21:39,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:21:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:21:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:21:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:21:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:21:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:21:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:21:39,355 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:21:39,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:21:40,705 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:21:41,047 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:21:41,047 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-12-14 13:21:41,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:21:41 BoogieIcfgContainer [2022-12-14 13:21:41,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:21:41,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:21:41,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:21:41,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:21:41,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:21:38" (1/3) ... [2022-12-14 13:21:41,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35990271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:21:41, skipping insertion in model container [2022-12-14 13:21:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:21:38" (2/3) ... [2022-12-14 13:21:41,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35990271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:21:41, skipping insertion in model container [2022-12-14 13:21:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:21:41" (3/3) ... [2022-12-14 13:21:41,055 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-2.i [2022-12-14 13:21:41,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:21:41,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:21:41,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:21:41,110 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;@108bf1b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:21:41,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:21:41,113 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 13:21:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:21:41,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:41,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:21:41,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:21:41,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:41,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-12-14 13:21:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:41,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106916193] [2022-12-14 13:21:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:41,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:41,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:41,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106916193] [2022-12-14 13:21:41,246 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 13:21:41,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556838644] [2022-12-14 13:21:41,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:41,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:21:41,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:21:41,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:21:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:41,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:21:41,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:21:41,449 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 13:21:41,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:21:41,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556838644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:21:41,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:21:41,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:21:41,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659604416] [2022-12-14 13:21:41,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:21:41,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:21:41,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:21:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:21:41,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:21:41,481 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 13:21:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:21:42,179 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-12-14 13:21:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:21:42,184 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 13:21:42,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:21:42,190 INFO L225 Difference]: With dead ends: 329 [2022-12-14 13:21:42,190 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 13:21:42,193 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 13:21:42,195 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, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:21:42,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 13:21:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 13:21:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 13:21:42,225 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 13:21:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 13:21:42,227 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 13:21:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:21:42,227 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 13:21:42,227 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 13:21:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 13:21:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:21:42,228 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:42,229 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 13:21:42,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:21:42,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 13:21:42,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:21:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:42,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-12-14 13:21:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:42,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410770570] [2022-12-14 13:21:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:42,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:42,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410770570] [2022-12-14 13:21:42,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 13:21:42,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785536658] [2022-12-14 13:21:42,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:42,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:42,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:21:42,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:21:42,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:21:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:42,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:21:42,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:21:42,679 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 13:21:42,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:21:42,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785536658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:21:42,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:21:42,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:21:42,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913506511] [2022-12-14 13:21:42,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:21:42,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:21:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:21:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:21:42,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:21:42,682 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 13:21:43,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:21:43,504 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 13:21:43,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:21:43,507 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 13:21:43,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:21:43,508 INFO L225 Difference]: With dead ends: 342 [2022-12-14 13:21:43,508 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 13:21:43,509 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 13:21:43,509 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 13:21:43,510 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 13:21:43,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 13:21:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 13:21:43,520 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 13:21:43,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 13:21:43,531 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 13:21:43,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:21:43,531 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 13:21:43,531 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 13:21:43,532 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 13:21:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 13:21:43,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:21:43,533 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 13:21:43,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 13:21:43,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:43,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:21:43,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:21:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-12-14 13:21:43,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:21:43,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109954313] [2022-12-14 13:21:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:43,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:21:43,943 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:21:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677774264] [2022-12-14 13:21:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:21:43,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:21:43,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:21:43,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:21:43,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:21:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:21:44,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:21:44,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:21:44,896 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 13:21:44,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:21:44,948 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 13:21:44,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:21:44,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109954313] [2022-12-14 13:21:44,948 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:21:44,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677774264] [2022-12-14 13:21:44,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677774264] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:21:44,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087682961] [2022-12-14 13:21:44,967 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 13:21:44,967 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:21:44,969 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:21:44,973 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:21:44,973 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:21:45,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,097 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 13:21:45,098 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 13:21:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,121 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:21:45,122 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 13:21:45,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,164 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 13:21:45,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,193 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:21:45,194 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 13:21:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,210 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 13:21:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:21:45,224 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 13:21:45,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,245 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 13:21:45,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,693 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 13:21:45,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:45,727 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 13:21:45,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 13:21:45,780 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 13:21:46,086 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 13:21:46,097 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 13:21:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,131 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 13:21:46,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:21:46,161 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 13:21:46,194 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:21:53,932 WARN L233 SmtUtils]: Spent 5.01s 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 13:22:01,285 WARN L233 SmtUtils]: Spent 5.27s 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 13:22:01,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1087682961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:01,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:22:01,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 13:22:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364139853] [2022-12-14 13:22:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:01,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:22:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:22:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 13:22:01,291 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 13:22:04,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:22:06,395 WARN L539 Checker$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 13:22:08,404 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 13:22:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:11,252 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-12-14 13:22:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 13:22:11,253 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 13:22:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:11,253 INFO L225 Difference]: With dead ends: 313 [2022-12-14 13:22:11,253 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 13:22:11,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 13:22:11,255 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s 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, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:11,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 13:22:11,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 13:22:11,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-12-14 13:22:11,264 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 13:22:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 13:22:11,265 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 13:22:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:11,265 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 13:22:11,266 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 13:22:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 13:22:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 13:22:11,267 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:11,267 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 13:22:11,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 13:22:11,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:22:11,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:22:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-12-14 13:22:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:11,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267269981] [2022-12-14 13:22:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:11,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:11,626 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:22:11,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705854197] [2022-12-14 13:22:11,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:11,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:22:11,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:22:11,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:22:11,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:22:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:12,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:22:12,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:22:12,454 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 13:22:12,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:22:12,562 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 13:22:12,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:12,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267269981] [2022-12-14 13:22:12,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:22:12,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705854197] [2022-12-14 13:22:12,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705854197] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:22:12,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [869947999] [2022-12-14 13:22:12,567 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 13:22:12,567 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:22:12,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:22:12,567 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:22:12,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:22:12,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,672 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:22:12,673 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 13:22:12,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,681 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 13:22:12,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,724 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:22:12,725 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 13:22:12,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,739 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 13:22:12,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,772 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:22:12,772 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 13:22:12,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,788 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 13:22:12,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:12,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:22:12,798 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 13:22:13,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,065 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 13:22:13,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,097 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 13:22:13,126 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 13:22:13,143 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 13:22:13,168 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 13:22:13,179 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 13:22:13,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,223 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 13:22:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,259 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 13:22:13,316 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 13:22:13,338 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 13:22:13,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,394 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:22:13,394 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 13:22:13,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,458 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:22:13,458 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 13:22:13,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,489 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 13:22:13,933 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 13:22:13,947 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 13:22:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:13,989 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 13:22:14,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,025 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 13:22:14,077 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 13:22:14,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,116 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 13:22:14,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,156 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 13:22:14,181 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 13:22:14,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,249 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 13:22:14,275 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 13:22:14,295 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 13:22:14,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,357 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:22:14,357 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 13:22:14,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:22:14,425 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:22:14,425 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 13:22:14,678 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 13:22:14,762 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:22:30,814 WARN L233 SmtUtils]: Spent 6.27s 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 13:22:40,529 WARN L233 SmtUtils]: Spent 5.61s 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 13:22:52,370 WARN L233 SmtUtils]: Spent 5.73s 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 13:23:06,607 WARN L233 SmtUtils]: Spent 8.08s 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 13:23:07,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [869947999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:23:07,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:23:07,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 13:23:07,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778947116] [2022-12-14 13:23:07,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:23:07,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 13:23:07,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:23:07,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 13:23:07,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 13:23:07,747 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 13:23:12,386 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 13:23:14,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:23:16,514 WARN L539 Checker$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 13:23:18,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:23:20,597 WARN L539 Checker$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 13:23:22,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:23:24,658 WARN L539 Checker$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 13:23:26,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:23:28,699 WARN L539 Checker$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 13:23:33,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:23:33,357 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 13:23:33,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 13:23:33,358 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 13:23:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:23:33,359 INFO L225 Difference]: With dead ends: 315 [2022-12-14 13:23:33,359 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 13:23:33,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 54.6s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-12-14 13:23:33,361 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s 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, 23.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:23:33,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 23.9s Time] [2022-12-14 13:23:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 13:23:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 13:23:33,386 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 13:23:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 13:23:33,387 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 13:23:33,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:23:33,388 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 13:23:33,388 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 13:23:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 13:23:33,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 13:23:33,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:23:33,390 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 13:23:33,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:23:33,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:23:33,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:23:33,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:23:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-12-14 13:23:33,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:23:33,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630103493] [2022-12-14 13:23:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:23:33,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:23:33,705 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:23:33,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390644577] [2022-12-14 13:23:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:23:33,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:23:33,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:23:33,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:23:33,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa95d40-9ba2-496f-8579-e757cae817f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:23:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:23:34,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:23:34,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:23:34,495 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 13:23:34,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:23:34,563 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 13:23:34,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:23:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630103493] [2022-12-14 13:23:34,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:23:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390644577] [2022-12-14 13:23:34,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390644577] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:23:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1752463365] [2022-12-14 13:23:34,565 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 13:23:34,565 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:23:34,566 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:23:34,566 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:23:34,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:23:34,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,620 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:23:34,620 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 13:23:34,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,628 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 13:23:34,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:23:34,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,656 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:23:34,656 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 13:23:34,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,687 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:23:34,687 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 13:23:34,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,702 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 13:23:34,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,714 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 13:23:34,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,747 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:23:34,747 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 13:23:34,940 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 13:23:34,952 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 13:23:34,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:34,984 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 13:23:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,010 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 13:23:35,047 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 13:23:35,058 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 13:23:35,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,095 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 13:23:35,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,124 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 13:23:35,167 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 13:23:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,212 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:23:35,212 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 13:23:35,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,266 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:23:35,266 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 13:23:35,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,298 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 13:23:35,326 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 13:23:35,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:23:35,431 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 13:23:35,434 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 13:23:35,474 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:23:35,474 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 13:23:35,495 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 13:23:35,496 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 13:23:35,515 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:23:35,515 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 13:23:35,540 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 13:23:35,546 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 13:23:35,552 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 13:23:35,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,612 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 13:23:35,636 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 13:23:35,655 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 13:23:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:23:35,792 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 13:23:35,805 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 13:23:35,817 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 13:23:36,879 INFO L217 Elim1Store]: Index analysis took 850 ms [2022-12-14 13:23:45,553 WARN L233 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:23:45,553 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 13:23:45,554 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 13:23:46,518 INFO L217 Elim1Store]: Index analysis took 837 ms [2022-12-14 13:23:47,256 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 13:23:47,256 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 13:26:24,529 WARN L233 SmtUtils]: Spent 2.62m 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 13:26:24,530 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 13:26:24,531 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 13:26:25,056 INFO L217 Elim1Store]: Index analysis took 268 ms [2022-12-14 13:27:46,860 WARN L233 SmtUtils]: Spent 1.36m 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 13:27:46,861 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 13:27:46,862 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 13:27:49,972 INFO L217 Elim1Store]: Index analysis took 2062 ms [2022-12-14 13:36:00,506 WARN L233 SmtUtils]: Spent 8.17m on a formula simplification. DAG size of input: 538 DAG size of output: 282 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:36:00,507 INFO L321 Elim1Store]: treesize reduction 15914, result has 26.5 percent of original size [2022-12-14 13:36:00,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 12 new quantified variables, introduced 48 case distinctions, treesize of input 7608 treesize of output 21467