/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_SFH_test2-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:32:43,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:32:43,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:32:43,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 16:32:43,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:32:43,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:32:43,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:32:43,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:32:43,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:32:43,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:32:43,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:32:43,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:32:43,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:32:43,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:32:43,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:32:43,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:32:43,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 16:32:43,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:32:43,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:32:43,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:32:43,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 16:32:43,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:32:43,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:32:43,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:32:43,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:32:43,611 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:32:43,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:32:43,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:32:43,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:32:43,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 16:32:43,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:32:43,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 16:32:43,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 16:32:43,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:32:43,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 16:32:43,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:32:43,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:32:43,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:32:43,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:32:43,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:32:43,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:32:43,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 16:32:43,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:32:43,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:32:43,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 16:32:43,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:32:43,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:32:44,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:32:44,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:32:44,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:32:44,071 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:32:44,071 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:32:44,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2020-12-23 16:32:44,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8a329fa51/2cb6fac76e9b4819914b57a8207ce4ed/FLAGffceaefa7 [2020-12-23 16:32:45,086 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:32:45,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2020-12-23 16:32:45,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8a329fa51/2cb6fac76e9b4819914b57a8207ce4ed/FLAGffceaefa7 [2020-12-23 16:32:45,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/8a329fa51/2cb6fac76e9b4819914b57a8207ce4ed [2020-12-23 16:32:45,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:32:45,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:32:45,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:32:45,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:32:45,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:32:45,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:32:45" (1/1) ... [2020-12-23 16:32:45,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a68c1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:45, skipping insertion in model container [2020-12-23 16:32:45,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:32:45" (1/1) ... [2020-12-23 16:32:45,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:32:45,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 16:32:45,927 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_SFH_test2-1.i[37019,37032] 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[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 16:32:46,125 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_SFH_test2-1.i[47352,47365] [2020-12-23 16:32:46,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:32:46,142 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 16:32:46,181 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_SFH_test2-1.i[37019,37032] left hand side expression in assignment: address: IdentifierExpression[~#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~mem42,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem42,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem44,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem44,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem45,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem45,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem46,],base],StructAccessExpression[IdentifierExpression[#t~mem46,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem48,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem48,],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~mem61,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem61,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem62,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem62,],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~mem74,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem74,],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~mem88,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem88,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem98,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem98,],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~mem125,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem125,],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~mem133,],base],StructAccessExpression[IdentifierExpression[#t~mem133,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem135,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem135,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem145,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem145,],offset]]]] left hand side expression in assignment: address: IdentifierExpression[~#i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~1,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~_hf_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] [2020-12-23 16:32:46,282 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_SFH_test2-1.i[47352,47365] [2020-12-23 16:32:46,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:32:46,433 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:32:46,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46 WrapperNode [2020-12-23 16:32:46,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:32:46,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:32:46,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:32:46,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:32:46,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:32:46,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:32:46,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:32:46,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:32:46,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (1/1) ... [2020-12-23 16:32:46,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:32:46,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:32:46,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:32:46,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:32:46,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (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 [2020-12-23 16:32:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:32:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 16:32:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 16:32:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:32:46,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 16:32:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:32:46,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:32:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:32:46,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:32:46,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:32:46,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:32:48,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:32:48,747 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2020-12-23 16:32:48,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:32:48 BoogieIcfgContainer [2020-12-23 16:32:48,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:32:48,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:32:48,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:32:48,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:32:48,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:32:45" (1/3) ... [2020-12-23 16:32:48,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bc4d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:32:48, skipping insertion in model container [2020-12-23 16:32:48,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:32:46" (2/3) ... [2020-12-23 16:32:48,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bc4d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:32:48, skipping insertion in model container [2020-12-23 16:32:48,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:32:48" (3/3) ... [2020-12-23 16:32:48,759 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2020-12-23 16:32:48,766 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:32:48,772 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 16:32:48,798 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 16:32:48,829 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:32:48,829 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 16:32:48,829 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:32:48,829 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:32:48,829 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:32:48,830 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:32:48,830 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:32:48,830 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:32:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-12-23 16:32:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 16:32:48,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:48,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:48,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2020-12-23 16:32:48,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:48,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866142208] [2020-12-23 16:32:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:49,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866142208] [2020-12-23 16:32:49,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:49,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:32:49,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348724010] [2020-12-23 16:32:49,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 16:32:49,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:49,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 16:32:49,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 16:32:49,079 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2020-12-23 16:32:49,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:49,124 INFO L93 Difference]: Finished difference Result 352 states and 584 transitions. [2020-12-23 16:32:49,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 16:32:49,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 16:32:49,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:49,140 INFO L225 Difference]: With dead ends: 352 [2020-12-23 16:32:49,140 INFO L226 Difference]: Without dead ends: 173 [2020-12-23 16:32:49,145 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 [2020-12-23 16:32:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-23 16:32:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-12-23 16:32:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-12-23 16:32:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2020-12-23 16:32:49,202 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2020-12-23 16:32:49,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:49,203 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2020-12-23 16:32:49,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 16:32:49,203 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2020-12-23 16:32:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 16:32:49,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:49,206 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] [2020-12-23 16:32:49,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:32:49,207 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:49,208 INFO L82 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2020-12-23 16:32:49,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:49,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868205057] [2020-12-23 16:32:49,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:49,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868205057] [2020-12-23 16:32:49,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:49,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:32:49,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312852546] [2020-12-23 16:32:49,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:32:49,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:49,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:32:49,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:49,404 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand 4 states. [2020-12-23 16:32:49,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:49,934 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2020-12-23 16:32:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:32:49,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-23 16:32:49,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:49,938 INFO L225 Difference]: With dead ends: 377 [2020-12-23 16:32:49,938 INFO L226 Difference]: Without dead ends: 294 [2020-12-23 16:32:49,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-12-23 16:32:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 175. [2020-12-23 16:32:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-12-23 16:32:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2020-12-23 16:32:49,957 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2020-12-23 16:32:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:49,958 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2020-12-23 16:32:49,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:32:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2020-12-23 16:32:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:32:49,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:49,962 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:49,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:32:49,962 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:49,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2020-12-23 16:32:49,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:49,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457401866] [2020-12-23 16:32:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:50,009 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:50,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1416641664] [2020-12-23 16:32:50,010 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 [2020-12-23 16:32:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:50,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:32:50,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:50,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457401866] [2020-12-23 16:32:50,366 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:50,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416641664] [2020-12-23 16:32:50,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:50,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:32:50,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363606238] [2020-12-23 16:32:50,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:32:50,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:50,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:32:50,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:50,370 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand 3 states. [2020-12-23 16:32:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:50,450 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2020-12-23 16:32:50,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:32:50,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:32:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:50,452 INFO L225 Difference]: With dead ends: 367 [2020-12-23 16:32:50,452 INFO L226 Difference]: Without dead ends: 196 [2020-12-23 16:32:50,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-23 16:32:50,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-12-23 16:32:50,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-12-23 16:32:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2020-12-23 16:32:50,467 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 247 transitions. Word has length 96 [2020-12-23 16:32:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:50,467 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 247 transitions. [2020-12-23 16:32:50,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:32:50,468 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2020-12-23 16:32:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:32:50,471 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:50,472 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:50,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 16:32:50,687 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1343744819, now seen corresponding path program 1 times [2020-12-23 16:32:50,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:50,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203880004] [2020-12-23 16:32:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:50,712 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:50,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223883687] [2020-12-23 16:32:50,713 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 [2020-12-23 16:32:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:50,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:32:50,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:32:51,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203880004] [2020-12-23 16:32:51,035 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:51,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223883687] [2020-12-23 16:32:51,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:51,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:32:51,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138608631] [2020-12-23 16:32:51,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:32:51,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:51,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:32:51,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:51,038 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand 3 states. [2020-12-23 16:32:51,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:51,127 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2020-12-23 16:32:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:32:51,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:32:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:51,129 INFO L225 Difference]: With dead ends: 298 [2020-12-23 16:32:51,130 INFO L226 Difference]: Without dead ends: 216 [2020-12-23 16:32:51,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:51,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-12-23 16:32:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2020-12-23 16:32:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-12-23 16:32:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2020-12-23 16:32:51,140 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 96 [2020-12-23 16:32:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:51,141 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2020-12-23 16:32:51,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:32:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2020-12-23 16:32:51,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:32:51,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:51,144 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:51,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:51,358 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:51,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1663949871, now seen corresponding path program 1 times [2020-12-23 16:32:51,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:51,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362120599] [2020-12-23 16:32:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:51,382 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:51,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153247102] [2020-12-23 16:32:51,382 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 [2020-12-23 16:32:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:51,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:32:51,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:51,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362120599] [2020-12-23 16:32:51,702 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:51,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153247102] [2020-12-23 16:32:51,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:51,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:32:51,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533460581] [2020-12-23 16:32:51,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:32:51,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:32:51,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:51,705 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand 4 states. [2020-12-23 16:32:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:51,796 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2020-12-23 16:32:51,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:32:51,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-23 16:32:51,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:51,799 INFO L225 Difference]: With dead ends: 418 [2020-12-23 16:32:51,799 INFO L226 Difference]: Without dead ends: 207 [2020-12-23 16:32:51,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:51,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-12-23 16:32:51,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2020-12-23 16:32:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-12-23 16:32:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2020-12-23 16:32:51,808 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 96 [2020-12-23 16:32:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:51,809 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2020-12-23 16:32:51,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:32:51,809 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2020-12-23 16:32:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:32:51,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:51,811 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:52,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:52,028 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:52,030 INFO L82 PathProgramCache]: Analyzing trace with hash 569918303, now seen corresponding path program 1 times [2020-12-23 16:32:52,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:52,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096054621] [2020-12-23 16:32:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:52,064 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:52,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756982215] [2020-12-23 16:32:52,064 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 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 [2020-12-23 16:32:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:52,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:32:52,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 16:32:52,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096054621] [2020-12-23 16:32:52,426 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:52,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756982215] [2020-12-23 16:32:52,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:52,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:32:52,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313478230] [2020-12-23 16:32:52,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:32:52,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:52,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:32:52,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:52,428 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand 4 states. [2020-12-23 16:32:52,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:52,525 INFO L93 Difference]: Finished difference Result 295 states and 364 transitions. [2020-12-23 16:32:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:32:52,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-23 16:32:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:52,529 INFO L225 Difference]: With dead ends: 295 [2020-12-23 16:32:52,529 INFO L226 Difference]: Without dead ends: 193 [2020-12-23 16:32:52,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-12-23 16:32:52,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2020-12-23 16:32:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-23 16:32:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2020-12-23 16:32:52,539 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 96 [2020-12-23 16:32:52,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:52,540 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2020-12-23 16:32:52,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:32:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2020-12-23 16:32:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-23 16:32:52,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:52,542 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:52,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:52,758 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:52,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:52,759 INFO L82 PathProgramCache]: Analyzing trace with hash -312930543, now seen corresponding path program 1 times [2020-12-23 16:32:52,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:52,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302055666] [2020-12-23 16:32:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:52,783 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:52,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798741642] [2020-12-23 16:32:52,784 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 [2020-12-23 16:32:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:53,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:32:53,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:53,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302055666] [2020-12-23 16:32:53,163 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:53,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798741642] [2020-12-23 16:32:53,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:53,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:32:53,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552364474] [2020-12-23 16:32:53,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:32:53,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:53,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:32:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:53,165 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand 3 states. [2020-12-23 16:32:53,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:53,228 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2020-12-23 16:32:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:32:53,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-23 16:32:53,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:53,231 INFO L225 Difference]: With dead ends: 486 [2020-12-23 16:32:53,231 INFO L226 Difference]: Without dead ends: 303 [2020-12-23 16:32:53,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-12-23 16:32:53,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 291. [2020-12-23 16:32:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-23 16:32:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2020-12-23 16:32:53,243 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 96 [2020-12-23 16:32:53,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:53,243 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2020-12-23 16:32:53,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:32:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2020-12-23 16:32:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-23 16:32:53,245 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:53,245 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:53,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 16:32:53,460 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:53,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:53,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1090926304, now seen corresponding path program 1 times [2020-12-23 16:32:53,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:53,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297379321] [2020-12-23 16:32:53,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:53,481 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:53,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044871464] [2020-12-23 16:32:53,482 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 [2020-12-23 16:32:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:53,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 16:32:53,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:32:53,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297379321] [2020-12-23 16:32:53,832 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:53,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044871464] [2020-12-23 16:32:53,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:53,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 16:32:53,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902623512] [2020-12-23 16:32:53,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:32:53,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:53,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:32:53,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:53,840 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand 3 states. [2020-12-23 16:32:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:53,871 INFO L93 Difference]: Finished difference Result 536 states and 651 transitions. [2020-12-23 16:32:53,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:32:53,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-12-23 16:32:53,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:53,876 INFO L225 Difference]: With dead ends: 536 [2020-12-23 16:32:53,876 INFO L226 Difference]: Without dead ends: 293 [2020-12-23 16:32:53,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:32:53,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-12-23 16:32:53,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-12-23 16:32:53,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-23 16:32:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 352 transitions. [2020-12-23 16:32:53,897 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 352 transitions. Word has length 103 [2020-12-23 16:32:53,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:53,900 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 352 transitions. [2020-12-23 16:32:53,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:32:53,900 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 352 transitions. [2020-12-23 16:32:53,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-23 16:32:53,905 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:53,906 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:54,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:54,121 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:54,122 INFO L82 PathProgramCache]: Analyzing trace with hash 77446145, now seen corresponding path program 1 times [2020-12-23 16:32:54,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:54,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112309667] [2020-12-23 16:32:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:54,146 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:54,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870209922] [2020-12-23 16:32:54,152 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 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 [2020-12-23 16:32:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:54,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 16:32:54,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 16:32:54,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112309667] [2020-12-23 16:32:54,551 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:54,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870209922] [2020-12-23 16:32:54,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:32:54,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 16:32:54,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873846409] [2020-12-23 16:32:54,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:32:54,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:54,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:32:54,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:54,560 INFO L87 Difference]: Start difference. First operand 293 states and 352 transitions. Second operand 4 states. [2020-12-23 16:32:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:54,603 INFO L93 Difference]: Finished difference Result 540 states and 655 transitions. [2020-12-23 16:32:54,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:32:54,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-12-23 16:32:54,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:54,606 INFO L225 Difference]: With dead ends: 540 [2020-12-23 16:32:54,606 INFO L226 Difference]: Without dead ends: 295 [2020-12-23 16:32:54,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-12-23 16:32:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2020-12-23 16:32:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-12-23 16:32:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 354 transitions. [2020-12-23 16:32:54,618 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 354 transitions. Word has length 105 [2020-12-23 16:32:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:54,619 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 354 transitions. [2020-12-23 16:32:54,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:32:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 354 transitions. [2020-12-23 16:32:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 16:32:54,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:54,620 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:54,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:54,836 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:54,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1213198784, now seen corresponding path program 2 times [2020-12-23 16:32:54,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:54,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833115423] [2020-12-23 16:32:54,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:54,860 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:54,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057828707] [2020-12-23 16:32:54,863 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 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 [2020-12-23 16:32:55,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:32:55,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:32:55,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 16:32:55,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 16:32:55,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833115423] [2020-12-23 16:32:55,293 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:55,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057828707] [2020-12-23 16:32:55,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:32:55,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 16:32:55,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604963714] [2020-12-23 16:32:55,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 16:32:55,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:55,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 16:32:55,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:55,295 INFO L87 Difference]: Start difference. First operand 295 states and 354 transitions. Second operand 5 states. [2020-12-23 16:32:55,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:55,344 INFO L93 Difference]: Finished difference Result 544 states and 659 transitions. [2020-12-23 16:32:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 16:32:55,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-12-23 16:32:55,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:55,346 INFO L225 Difference]: With dead ends: 544 [2020-12-23 16:32:55,346 INFO L226 Difference]: Without dead ends: 297 [2020-12-23 16:32:55,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:55,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-12-23 16:32:55,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-12-23 16:32:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-23 16:32:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 356 transitions. [2020-12-23 16:32:55,359 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 356 transitions. Word has length 107 [2020-12-23 16:32:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:55,359 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 356 transitions. [2020-12-23 16:32:55,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 16:32:55,360 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 356 transitions. [2020-12-23 16:32:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 16:32:55,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:55,361 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:55,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 16:32:55,569 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:55,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:55,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711009, now seen corresponding path program 3 times [2020-12-23 16:32:55,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:55,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456171437] [2020-12-23 16:32:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:55,587 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:55,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1202122881] [2020-12-23 16:32:55,588 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:55,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 16:32:55,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:32:55,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 16:32:55,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-23 16:32:56,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456171437] [2020-12-23 16:32:56,133 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:56,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202122881] [2020-12-23 16:32:56,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:32:56,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 16:32:56,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983611627] [2020-12-23 16:32:56,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 16:32:56,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:56,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 16:32:56,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 16:32:56,135 INFO L87 Difference]: Start difference. First operand 297 states and 356 transitions. Second operand 4 states. [2020-12-23 16:32:56,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:56,750 INFO L93 Difference]: Finished difference Result 486 states and 583 transitions. [2020-12-23 16:32:56,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 16:32:56,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-12-23 16:32:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:56,753 INFO L225 Difference]: With dead ends: 486 [2020-12-23 16:32:56,753 INFO L226 Difference]: Without dead ends: 237 [2020-12-23 16:32:56,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 16:32:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-12-23 16:32:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2020-12-23 16:32:56,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-12-23 16:32:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2020-12-23 16:32:56,764 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 109 [2020-12-23 16:32:56,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:56,765 INFO L481 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2020-12-23 16:32:56,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 16:32:56,765 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2020-12-23 16:32:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-23 16:32:56,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:56,767 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:56,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:56,982 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2033164455, now seen corresponding path program 1 times [2020-12-23 16:32:56,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:56,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705751488] [2020-12-23 16:32:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:57,001 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:57,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455108007] [2020-12-23 16:32:57,001 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:32:57,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 16:32:57,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 16:32:57,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705751488] [2020-12-23 16:32:57,470 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:57,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455108007] [2020-12-23 16:32:57,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:32:57,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 16:32:57,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102171113] [2020-12-23 16:32:57,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 16:32:57,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:57,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 16:32:57,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:32:57,473 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand 6 states. [2020-12-23 16:32:57,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:57,535 INFO L93 Difference]: Finished difference Result 422 states and 500 transitions. [2020-12-23 16:32:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 16:32:57,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-12-23 16:32:57,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:57,538 INFO L225 Difference]: With dead ends: 422 [2020-12-23 16:32:57,539 INFO L226 Difference]: Without dead ends: 239 [2020-12-23 16:32:57,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 16:32:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-12-23 16:32:57,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-12-23 16:32:57,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-23 16:32:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 280 transitions. [2020-12-23 16:32:57,552 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 280 transitions. Word has length 116 [2020-12-23 16:32:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:57,552 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 280 transitions. [2020-12-23 16:32:57,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 16:32:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 280 transitions. [2020-12-23 16:32:57,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 16:32:57,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:57,555 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:57,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:57,770 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:57,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:57,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1107953786, now seen corresponding path program 2 times [2020-12-23 16:32:57,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:57,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916896688] [2020-12-23 16:32:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:57,811 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:57,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844993656] [2020-12-23 16:32:57,812 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 16:32:59,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 16:32:59,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 16:32:59,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 16:32:59,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 16:32:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-23 16:32:59,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916896688] [2020-12-23 16:32:59,261 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 16:32:59,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844993656] [2020-12-23 16:32:59,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 16:32:59,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 16:32:59,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038412943] [2020-12-23 16:32:59,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 16:32:59,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:32:59,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 16:32:59,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:32:59,263 INFO L87 Difference]: Start difference. First operand 239 states and 280 transitions. Second operand 7 states. [2020-12-23 16:32:59,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:32:59,321 INFO L93 Difference]: Finished difference Result 425 states and 503 transitions. [2020-12-23 16:32:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 16:32:59,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-12-23 16:32:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:32:59,324 INFO L225 Difference]: With dead ends: 425 [2020-12-23 16:32:59,324 INFO L226 Difference]: Without dead ends: 241 [2020-12-23 16:32:59,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 16:32:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-12-23 16:32:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-12-23 16:32:59,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-23 16:32:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 282 transitions. [2020-12-23 16:32:59,336 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 282 transitions. Word has length 118 [2020-12-23 16:32:59,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:32:59,336 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 282 transitions. [2020-12-23 16:32:59,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 16:32:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 282 transitions. [2020-12-23 16:32:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-23 16:32:59,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:32:59,338 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:32:59,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 16:32:59,547 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 16:32:59,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:32:59,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1744266425, now seen corresponding path program 3 times [2020-12-23 16:32:59,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:32:59,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194549515] [2020-12-23 16:32:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:32:59,574 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 16:32:59,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724883780] [2020-12-23 16:32:59,576 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true