/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 04:11:33,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:11:33,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:11:33,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-07 04:11:33,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 04:11:33,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 04:11:33,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 04:11:33,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 04:11:33,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 04:11:33,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 04:11:33,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 04:11:33,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 04:11:33,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 04:11:33,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 04:11:33,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 04:11:33,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 04:11:33,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 04:11:34,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:11:34,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:11:34,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:11:34,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-07 04:11:34,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:11:34,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:11:34,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:11:34,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:11:34,078 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:11:34,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:11:34,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:11:34,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:11:34,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-07 04:11:34,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:11:34,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-07 04:11:34,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-07 04:11:34,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:11:34,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-07 04:11:34,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:11:34,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:11:34,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:11:34,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:11:34,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:11:34,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:11:34,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-07 04:11:34,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:11:34,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:11:34,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-07 04:11:34,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:11:34,085 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:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:11:34,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:11:34,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:11:34,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:11:34,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:11:34,659 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:11:34,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-01-07 04:11:34,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2fbe2c82e/a0a93c4e23d547249e36da4e642115f7/FLAGa12f364ce [2021-01-07 04:11:35,557 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:11:35,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-01-07 04:11:35,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2fbe2c82e/a0a93c4e23d547249e36da4e642115f7/FLAGa12f364ce [2021-01-07 04:11:35,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2fbe2c82e/a0a93c4e23d547249e36da4e642115f7 [2021-01-07 04:11:35,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:11:35,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:11:35,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:11:35,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:11:35,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:11:35,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:11:35" (1/1) ... [2021-01-07 04:11:35,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b03ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:35, skipping insertion in model container [2021-01-07 04:11:35,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:11:35" (1/1) ... [2021-01-07 04:11:35,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:11:35,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-07 04:11:36,270 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem81,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem81,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem91,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem91,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem117,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem117,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem126,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2021-01-07 04:11:36,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:11:36,403 INFO L203 MainTranslator]: Completed pre-run [2021-01-07 04:11:36,441 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: address: IdentifierExpression[~#_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem83,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem83,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem93,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem93,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem120,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem120,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem128,],base],StructAccessExpression[IdentifierExpression[#t~mem128,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem130,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem130,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem140,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem140,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2021-01-07 04:11:36,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:11:36,709 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:11:36,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36 WrapperNode [2021-01-07 04:11:36,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:11:36,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:11:36,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:11:36,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:11:36,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:11:36,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:11:36,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:11:36,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:11:36,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:36,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... [2021-01-07 04:11:37,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:11:37,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:11:37,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:11:37,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:11:37,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:11:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 04:11:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:11:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:11:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:11:38,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:11:38,609 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-01-07 04:11:38,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:11:38 BoogieIcfgContainer [2021-01-07 04:11:38,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:11:38,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:11:38,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:11:38,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:11:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:11:35" (1/3) ... [2021-01-07 04:11:38,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3613d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:11:38, skipping insertion in model container [2021-01-07 04:11:38,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:11:36" (2/3) ... [2021-01-07 04:11:38,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3613d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:11:38, skipping insertion in model container [2021-01-07 04:11:38,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:11:38" (3/3) ... [2021-01-07 04:11:38,624 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2021-01-07 04:11:38,632 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:11:38,638 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2021-01-07 04:11:38,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-01-07 04:11:38,685 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:11:38,685 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-07 04:11:38,686 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:11:38,686 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:11:38,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:11:38,686 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:11:38,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:11:38,686 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:11:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2021-01-07 04:11:38,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 04:11:38,715 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:38,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:38,717 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:38,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-01-07 04:11:38,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:38,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901268754] [2021-01-07 04:11:38,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:11:38,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901268754] [2021-01-07 04:11:38,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:38,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:11:38,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800879275] [2021-01-07 04:11:38,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:11:38,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:38,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:11:38,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:11:38,942 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2021-01-07 04:11:38,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:38,986 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2021-01-07 04:11:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:11:38,988 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-07 04:11:38,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:39,004 INFO L225 Difference]: With dead ends: 274 [2021-01-07 04:11:39,005 INFO L226 Difference]: Without dead ends: 134 [2021-01-07 04:11:39,009 INFO L677 BasicCegarLoop]: 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 [2021-01-07 04:11:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-01-07 04:11:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-01-07 04:11:39,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-01-07 04:11:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2021-01-07 04:11:39,104 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2021-01-07 04:11:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:39,105 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2021-01-07 04:11:39,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:11:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2021-01-07 04:11:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-07 04:11:39,106 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:39,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:39,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:11:39,107 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:39,108 INFO L82 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-01-07 04:11:39,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:39,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070052554] [2021-01-07 04:11:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:11:39,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070052554] [2021-01-07 04:11:39,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:39,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:11:39,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879088476] [2021-01-07 04:11:39,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:11:39,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:39,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:11:39,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:39,178 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand 3 states. [2021-01-07 04:11:39,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:39,230 INFO L93 Difference]: Finished difference Result 266 states and 342 transitions. [2021-01-07 04:11:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:11:39,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-01-07 04:11:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:39,235 INFO L225 Difference]: With dead ends: 266 [2021-01-07 04:11:39,235 INFO L226 Difference]: Without dead ends: 221 [2021-01-07 04:11:39,237 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-01-07 04:11:39,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 135. [2021-01-07 04:11:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-01-07 04:11:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 173 transitions. [2021-01-07 04:11:39,255 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 173 transitions. Word has length 8 [2021-01-07 04:11:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:39,256 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 173 transitions. [2021-01-07 04:11:39,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:11:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 173 transitions. [2021-01-07 04:11:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-07 04:11:39,259 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:39,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:39,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:11:39,260 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash -781067853, now seen corresponding path program 1 times [2021-01-07 04:11:39,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:39,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393663223] [2021-01-07 04:11:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:39,291 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:39,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752291681] [2021-01-07 04:11:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:39,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:11:39,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:11:39,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393663223] [2021-01-07 04:11:39,591 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:39,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752291681] [2021-01-07 04:11:39,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:39,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:11:39,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801886443] [2021-01-07 04:11:39,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:11:39,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:39,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:11:39,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:39,595 INFO L87 Difference]: Start difference. First operand 135 states and 173 transitions. Second operand 3 states. [2021-01-07 04:11:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:39,700 INFO L93 Difference]: Finished difference Result 288 states and 374 transitions. [2021-01-07 04:11:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:11:39,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2021-01-07 04:11:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:39,702 INFO L225 Difference]: With dead ends: 288 [2021-01-07 04:11:39,702 INFO L226 Difference]: Without dead ends: 156 [2021-01-07 04:11:39,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-01-07 04:11:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2021-01-07 04:11:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2021-01-07 04:11:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 193 transitions. [2021-01-07 04:11:39,719 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 193 transitions. Word has length 59 [2021-01-07 04:11:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:39,719 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 193 transitions. [2021-01-07 04:11:39,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:11:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 193 transitions. [2021-01-07 04:11:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-07 04:11:39,722 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:39,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:39,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-07 04:11:39,937 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:39,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:39,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1269877969, now seen corresponding path program 1 times [2021-01-07 04:11:39,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:39,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981553769] [2021-01-07 04:11:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:39,978 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:39,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866406660] [2021-01-07 04:11:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:40,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:11:40,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:11:40,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981553769] [2021-01-07 04:11:40,254 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:40,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866406660] [2021-01-07 04:11:40,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:40,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:11:40,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921282788] [2021-01-07 04:11:40,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:11:40,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:40,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:11:40,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:40,257 INFO L87 Difference]: Start difference. First operand 155 states and 193 transitions. Second operand 4 states. [2021-01-07 04:11:40,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:40,354 INFO L93 Difference]: Finished difference Result 299 states and 375 transitions. [2021-01-07 04:11:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:11:40,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-01-07 04:11:40,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:40,356 INFO L225 Difference]: With dead ends: 299 [2021-01-07 04:11:40,356 INFO L226 Difference]: Without dead ends: 147 [2021-01-07 04:11:40,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:11:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-01-07 04:11:40,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2021-01-07 04:11:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2021-01-07 04:11:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2021-01-07 04:11:40,369 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 59 [2021-01-07 04:11:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:40,370 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2021-01-07 04:11:40,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:11:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2021-01-07 04:11:40,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-01-07 04:11:40,372 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:40,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:40,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:40,589 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:40,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:40,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1890386365, now seen corresponding path program 1 times [2021-01-07 04:11:40,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:40,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609079996] [2021-01-07 04:11:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:40,622 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:40,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280557886] [2021-01-07 04:11:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:40,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:11:40,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:40,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:11:40,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609079996] [2021-01-07 04:11:40,898 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:40,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280557886] [2021-01-07 04:11:40,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:11:40,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-07 04:11:40,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786208243] [2021-01-07 04:11:40,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:11:40,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:40,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:11:40,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:40,902 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand 4 states. [2021-01-07 04:11:40,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:40,942 INFO L93 Difference]: Finished difference Result 371 states and 453 transitions. [2021-01-07 04:11:40,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:11:40,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2021-01-07 04:11:40,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:40,946 INFO L225 Difference]: With dead ends: 371 [2021-01-07 04:11:40,946 INFO L226 Difference]: Without dead ends: 326 [2021-01-07 04:11:40,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-01-07 04:11:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 234. [2021-01-07 04:11:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2021-01-07 04:11:40,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 285 transitions. [2021-01-07 04:11:40,985 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 285 transitions. Word has length 59 [2021-01-07 04:11:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:40,986 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 285 transitions. [2021-01-07 04:11:40,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:11:40,987 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 285 transitions. [2021-01-07 04:11:40,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-01-07 04:11:40,998 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:40,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:41,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:41,208 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 2 times [2021-01-07 04:11:41,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:41,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601342572] [2021-01-07 04:11:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:41,244 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:41,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842681110] [2021-01-07 04:11:41,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:41,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-07 04:11:41,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:11:41,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-07 04:11:41,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-01-07 04:11:41,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601342572] [2021-01-07 04:11:41,547 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:41,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842681110] [2021-01-07 04:11:41,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:41,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:11:41,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921834066] [2021-01-07 04:11:41,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:11:41,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:11:41,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:41,550 INFO L87 Difference]: Start difference. First operand 234 states and 285 transitions. Second operand 4 states. [2021-01-07 04:11:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:41,758 INFO L93 Difference]: Finished difference Result 410 states and 504 transitions. [2021-01-07 04:11:41,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:11:41,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2021-01-07 04:11:41,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:41,761 INFO L225 Difference]: With dead ends: 410 [2021-01-07 04:11:41,761 INFO L226 Difference]: Without dead ends: 232 [2021-01-07 04:11:41,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:41,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-01-07 04:11:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-01-07 04:11:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-01-07 04:11:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 282 transitions. [2021-01-07 04:11:41,771 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 282 transitions. Word has length 110 [2021-01-07 04:11:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:41,772 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 282 transitions. [2021-01-07 04:11:41,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:11:41,772 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 282 transitions. [2021-01-07 04:11:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-01-07 04:11:41,774 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:41,774 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:41,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:41,988 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:41,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2021-01-07 04:11:41,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:41,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409056825] [2021-01-07 04:11:41,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:42,011 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:42,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313179374] [2021-01-07 04:11:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:42,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:11:42,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-01-07 04:11:42,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409056825] [2021-01-07 04:11:42,357 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:42,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313179374] [2021-01-07 04:11:42,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:11:42,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:11:42,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746495138] [2021-01-07 04:11:42,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:11:42,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:42,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:11:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:42,360 INFO L87 Difference]: Start difference. First operand 232 states and 282 transitions. Second operand 3 states. [2021-01-07 04:11:42,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:42,386 INFO L93 Difference]: Finished difference Result 418 states and 516 transitions. [2021-01-07 04:11:42,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:11:42,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2021-01-07 04:11:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:42,389 INFO L225 Difference]: With dead ends: 418 [2021-01-07 04:11:42,389 INFO L226 Difference]: Without dead ends: 236 [2021-01-07 04:11:42,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:11:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-01-07 04:11:42,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-01-07 04:11:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-01-07 04:11:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 286 transitions. [2021-01-07 04:11:42,399 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 286 transitions. Word has length 117 [2021-01-07 04:11:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:42,399 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 286 transitions. [2021-01-07 04:11:42,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:11:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 286 transitions. [2021-01-07 04:11:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-01-07 04:11:42,401 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:42,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-01-07 04:11:42,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-07 04:11:42,616 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:42,617 INFO L82 PathProgramCache]: Analyzing trace with hash 375393205, now seen corresponding path program 1 times [2021-01-07 04:11:42,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:42,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940041803] [2021-01-07 04:11:42,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:42,643 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:42,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434510385] [2021-01-07 04:11:42,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:11:42,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-07 04:11:42,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-01-07 04:11:42,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940041803] [2021-01-07 04:11:42,990 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:42,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434510385] [2021-01-07 04:11:42,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:11:42,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-07 04:11:42,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913803656] [2021-01-07 04:11:42,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:11:42,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:42,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:11:42,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:42,993 INFO L87 Difference]: Start difference. First operand 236 states and 286 transitions. Second operand 4 states. [2021-01-07 04:11:43,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:43,026 INFO L93 Difference]: Finished difference Result 425 states and 523 transitions. [2021-01-07 04:11:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:11:43,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2021-01-07 04:11:43,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:43,029 INFO L225 Difference]: With dead ends: 425 [2021-01-07 04:11:43,029 INFO L226 Difference]: Without dead ends: 240 [2021-01-07 04:11:43,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:11:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-01-07 04:11:43,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-01-07 04:11:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2021-01-07 04:11:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 290 transitions. [2021-01-07 04:11:43,040 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 290 transitions. Word has length 119 [2021-01-07 04:11:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:43,040 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 290 transitions. [2021-01-07 04:11:43,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:11:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 290 transitions. [2021-01-07 04:11:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-01-07 04:11:43,042 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:43,042 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:43,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:43,257 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:43,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:43,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1447349194, now seen corresponding path program 2 times [2021-01-07 04:11:43,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:43,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792467877] [2021-01-07 04:11:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:43,283 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:43,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512170876] [2021-01-07 04:11:43,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:43,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:11:43,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:11:43,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:11:43,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:11:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-01-07 04:11:43,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792467877] [2021-01-07 04:11:43,643 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:11:43,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512170876] [2021-01-07 04:11:43,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:11:43,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-07 04:11:43,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40792380] [2021-01-07 04:11:43,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 04:11:43,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:11:43,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 04:11:43,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:11:43,645 INFO L87 Difference]: Start difference. First operand 240 states and 290 transitions. Second operand 5 states. [2021-01-07 04:11:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:11:43,704 INFO L93 Difference]: Finished difference Result 432 states and 530 transitions. [2021-01-07 04:11:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 04:11:43,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2021-01-07 04:11:43,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:11:43,707 INFO L225 Difference]: With dead ends: 432 [2021-01-07 04:11:43,707 INFO L226 Difference]: Without dead ends: 244 [2021-01-07 04:11:43,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:11:43,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-01-07 04:11:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2021-01-07 04:11:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-01-07 04:11:43,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 294 transitions. [2021-01-07 04:11:43,724 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 294 transitions. Word has length 121 [2021-01-07 04:11:43,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:11:43,724 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 294 transitions. [2021-01-07 04:11:43,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 04:11:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 294 transitions. [2021-01-07 04:11:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-01-07 04:11:43,728 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:11:43,728 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:11:43,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:11:43,943 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-07 04:11:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:11:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 414988629, now seen corresponding path program 3 times [2021-01-07 04:11:43,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:11:43,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647683469] [2021-01-07 04:11:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:11:43,964 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:11:43,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040212342] [2021-01-07 04:11:43,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true