./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/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_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/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_20dd7338-cc69-4849-9604-1cedc9576508/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 b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 --- 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 15:40:26,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:40:26,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:40:27,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:40:27,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:40:27,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:40:27,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:40:27,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:40:27,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:40:27,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:40:27,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:40:27,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:40:27,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:40:27,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:40:27,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:40:27,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:40:27,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:40:27,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:40:27,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:40:27,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:40:27,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:40:27,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:40:27,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:40:27,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:40:27,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:40:27,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:40:27,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:40:27,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:40:27,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:40:27,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:40:27,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:40:27,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:40:27,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:40:27,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:40:27,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:40:27,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:40:27,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:40:27,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:40:27,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:40:27,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:40:27,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:40:27,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:40:27,062 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:40:27,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:40:27,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:40:27,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:40:27,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:40:27,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:40:27,064 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:40:27,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:40:27,064 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:40:27,064 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:40:27,065 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:40:27,065 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:40:27,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:40:27,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:40:27,065 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:40:27,066 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:40:27,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:40:27,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:40:27,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:40:27,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:40:27,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:40:27,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:40:27,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:40:27,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:40:27,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:40:27,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:40:27,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:40:27,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:40:27,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:40:27,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:40:27,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:40:27,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:40:27,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:40:27,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:40:27,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:40:27,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:40:27,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:40:27,071 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:40:27,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:40:27,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:40:27,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:40:27,071 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_20dd7338-cc69-4849-9604-1cedc9576508/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6c6a722152c52daf4f5e799c877f12032a99023b4a9ea1a935c1ce634969e85 [2022-12-14 15:40:27,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:40:27,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:40:27,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:40:27,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:40:27,304 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:40:27,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2022-12-14 15:40:29,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:40:30,171 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:40:30,172 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i [2022-12-14 15:40:30,186 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/data/d8a4321bd/8355c385804f42a09545bd8f0d5f3c84/FLAG4b4467cb9 [2022-12-14 15:40:30,199 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/data/d8a4321bd/8355c385804f42a09545bd8f0d5f3c84 [2022-12-14 15:40:30,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:40:30,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:40:30,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:40:30,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:40:30,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:40:30,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da8b378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30, skipping insertion in model container [2022-12-14 15:40:30,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:40:30,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:40:30,515 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_20dd7338-cc69-4849-9604-1cedc9576508/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2022-12-14 15:40:30,576 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:40:30,583 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_20dd7338-cc69-4849-9604-1cedc9576508/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2022-12-14 15:40:30,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:40:30,594 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:40:30,614 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_20dd7338-cc69-4849-9604-1cedc9576508/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[33021,33034] [2022-12-14 15:40:30,646 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:40:30,651 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_20dd7338-cc69-4849-9604-1cedc9576508/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-1.i[45234,45247] [2022-12-14 15:40:30,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:40:30,674 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:40:30,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30 WrapperNode [2022-12-14 15:40:30,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:40:30,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:40:30,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:40:30,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:40:30,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,749 INFO L138 Inliner]: procedures = 177, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 992 [2022-12-14 15:40:30,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:40:30,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:40:30,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:40:30,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:40:30,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,823 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:40:30,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:40:30,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:40:30,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:40:30,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (1/1) ... [2022-12-14 15:40:30,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:40:30,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:30,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:40:30,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:40:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:40:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:40:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:40:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-12-14 15:40:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:40:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:40:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 15:40:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:40:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:40:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:40:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:40:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:40:31,019 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:40:31,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:40:31,919 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:40:32,208 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:40:32,208 INFO L300 CfgBuilder]: Removed 62 assume(true) statements. [2022-12-14 15:40:32,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:40:32 BoogieIcfgContainer [2022-12-14 15:40:32,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:40:32,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:40:32,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:40:32,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:40:32,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:40:30" (1/3) ... [2022-12-14 15:40:32,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c330b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:40:32, skipping insertion in model container [2022-12-14 15:40:32,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:40:30" (2/3) ... [2022-12-14 15:40:32,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c330b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:40:32, skipping insertion in model container [2022-12-14 15:40:32,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:40:32" (3/3) ... [2022-12-14 15:40:32,219 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-1.i [2022-12-14 15:40:32,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:40:32,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:40:32,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:40:32,292 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;@3724ec97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:40:32,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:40:32,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 15:40:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 15:40:32,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:32,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:40:32,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:32,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash 888261009, now seen corresponding path program 1 times [2022-12-14 15:40:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:32,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804666385] [2022-12-14 15:40:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:32,464 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 15:40:32,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:32,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804666385] [2022-12-14 15:40:32,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804666385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:32,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:32,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:40:32,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160468869] [2022-12-14 15:40:32,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:32,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:40:32,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:32,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:40:32,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:40:32,502 INFO L87 Difference]: Start difference. First operand has 148 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 139 states have internal predecessors, (219), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:33,328 INFO L93 Difference]: Finished difference Result 295 states and 534 transitions. [2022-12-14 15:40:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:40:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 15:40:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:33,337 INFO L225 Difference]: With dead ends: 295 [2022-12-14 15:40:33,337 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 15:40:33,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 15:40:33,343 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:33,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:40:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 15:40:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-12-14 15:40:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 15:40:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-12-14 15:40:33,383 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-12-14 15:40:33,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:33,384 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-12-14 15:40:33,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:33,384 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-12-14 15:40:33,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:40:33,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:33,385 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] [2022-12-14 15:40:33,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:40:33,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:33,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:33,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1250356048, now seen corresponding path program 1 times [2022-12-14 15:40:33,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:33,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035881355] [2022-12-14 15:40:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:33,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:33,694 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 15:40:33,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:33,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035881355] [2022-12-14 15:40:33,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035881355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:33,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:33,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:40:33,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757531299] [2022-12-14 15:40:33,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:33,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:40:33,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:33,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:40:33,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:40:33,699 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:35,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:35,469 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-12-14 15:40:35,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:40:35,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 15:40:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:35,471 INFO L225 Difference]: With dead ends: 293 [2022-12-14 15:40:35,471 INFO L226 Difference]: Without dead ends: 202 [2022-12-14 15:40:35,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:40:35,473 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:35,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 15:40:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-14 15:40:35,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-12-14 15:40:35,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-14 15:40:35,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-12-14 15:40:35,489 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-12-14 15:40:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:35,489 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-12-14 15:40:35,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-12-14 15:40:35,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 15:40:35,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:35,490 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] [2022-12-14 15:40:35,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:40:35,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:35,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1118312460, now seen corresponding path program 1 times [2022-12-14 15:40:35,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:35,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113584335] [2022-12-14 15:40:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:35,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:35,605 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:40:35,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939469670] [2022-12-14 15:40:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:35,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:35,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:35,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:40:35,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:40:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:36,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:40:36,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:40:36,150 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 15:40:36,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:40:36,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:36,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113584335] [2022-12-14 15:40:36,151 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:40:36,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939469670] [2022-12-14 15:40:36,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939469670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:36,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:36,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:40:36,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732495269] [2022-12-14 15:40:36,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:36,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:40:36,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:36,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:40:36,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:40:36,153 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:37,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:37,584 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-12-14 15:40:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:40:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-12-14 15:40:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:37,586 INFO L225 Difference]: With dead ends: 341 [2022-12-14 15:40:37,586 INFO L226 Difference]: Without dead ends: 196 [2022-12-14 15:40:37,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 15:40:37,588 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:37,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 15:40:37,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-12-14 15:40:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-12-14 15:40:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 15:40:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-12-14 15:40:37,604 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-12-14 15:40:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:37,605 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-12-14 15:40:37,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:40:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-12-14 15:40:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-14 15:40:37,606 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:37,606 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] [2022-12-14 15:40:37,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:40:37,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:37,807 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:37,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:37,807 INFO L85 PathProgramCache]: Analyzing trace with hash -119168274, now seen corresponding path program 1 times [2022-12-14 15:40:37,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:37,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106974670] [2022-12-14 15:40:37,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:37,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:37,849 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:40:37,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562959313] [2022-12-14 15:40:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:37,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:37,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:37,851 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:40:37,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:40:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:51,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:40:51,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:40:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:40:51,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:40:51,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:51,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106974670] [2022-12-14 15:40:51,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:40:51,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562959313] [2022-12-14 15:40:51,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562959313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:40:51,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:40:51,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:40:51,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153972719] [2022-12-14 15:40:51,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:40:51,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:40:51,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:40:51,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:40:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:40:51,940 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:40:53,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:40:53,266 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-12-14 15:40:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:40:53,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-12-14 15:40:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:40:53,272 INFO L225 Difference]: With dead ends: 372 [2022-12-14 15:40:53,272 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 15:40:53,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:40:53,274 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:40:53,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 15:40:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 15:40:53,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-12-14 15:40:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-12-14 15:40:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-12-14 15:40:53,289 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-12-14 15:40:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:40:53,289 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-12-14 15:40:53,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:40:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-12-14 15:40:53,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 15:40:53,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:40:53,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:40:53,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:40:53,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:53,492 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:40:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:40:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1646850426, now seen corresponding path program 1 times [2022-12-14 15:40:53,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:40:53,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308802042] [2022-12-14 15:40:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:53,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:40:53,586 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:40:53,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1185300585] [2022-12-14 15:40:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:40:53,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:40:53,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:40:53,587 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:40:53,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20dd7338-cc69-4849-9604-1cedc9576508/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:40:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:40:55,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 15:40:55,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:40:55,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:40:55,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:40:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:40:55,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:40:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308802042] [2022-12-14 15:40:55,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:40:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185300585] [2022-12-14 15:40:55,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185300585] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:40:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [700233871] [2022-12-14 15:40:55,953 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-12-14 15:40:55,953 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:40:55,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:40:55,959 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:40:55,960 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:40:56,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:40:56,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:40:56,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 15:40:56,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,061 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:40:56,062 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 15:40:56,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,073 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 15:40:56,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,147 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:40:56,147 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 15:40:56,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,165 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 15:40:56,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,194 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:40:56,195 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 15:40:56,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2022-12-14 15:40:56,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,234 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 15:40:56,591 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 15:40:56,604 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 15:40:56,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 15:40:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-12-14 15:40:56,734 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 15:40:56,744 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 15:40:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 15:40:56,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 15:40:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 15:40:56,969 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 15:40:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:56,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,027 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:40:57,027 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 15:40:57,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-12-14 15:40:57,068 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 15:40:57,237 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 15:40:57,240 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 15:40:57,244 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 15:40:57,280 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:40:57,280 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 15:40:57,303 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 15:40:57,303 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 15:40:57,326 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:40:57,326 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 15:40:57,351 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 15:40:57,355 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 15:40:57,361 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 15:40:57,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 15:40:57,460 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 15:40:57,478 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 15:40:57,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:40:57,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 15:40:57,641 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 15:40:57,652 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 15:40:58,499 INFO L217 Elim1Store]: Index analysis took 601 ms [2022-12-14 15:41:03,890 WARN L233 SmtUtils]: Spent 5.39s 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 15:41:03,890 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 15:41:03,891 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 9519777 treesize of output 9519796 [2022-12-14 15:41:04,955 INFO L217 Elim1Store]: Index analysis took 720 ms [2022-12-14 15:41:05,594 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 15:41:05,595 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 9519772 treesize of output 9519776 [2022-12-14 15:43:25,578 WARN L233 SmtUtils]: Spent 2.33m 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 15:43:25,579 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 15:43:25,579 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 7904 treesize of output 5832 [2022-12-14 15:43:26,230 INFO L217 Elim1Store]: Index analysis took 313 ms [2022-12-14 15:44:53,079 WARN L233 SmtUtils]: Spent 1.45m 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 15:44:53,080 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 15:44:53,081 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 7180 treesize of output 5998 [2022-12-14 15:44:57,089 INFO L217 Elim1Store]: Index analysis took 2742 ms [2022-12-14 15:54:17,475 WARN L233 SmtUtils]: Spent 9.33m 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 15:54:17,476 INFO L321 Elim1Store]: treesize reduction 15914, result has 26.5 percent of original size [2022-12-14 15:54:17,477 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 7572 treesize of output 21431