/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_BER_test3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 15:54:08,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 15:54:08,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 15:54:08,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-23 15:54:08,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 15:54:08,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 15:54:08,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 15:54:08,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 15:54:08,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 15:54:08,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 15:54:08,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 15:54:08,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 15:54:08,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 15:54:08,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 15:54:08,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 15:54:08,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 15:54:08,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 15:54:08,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 15:54:08,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 15:54:08,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 15:54:08,627 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 15:54:08,667 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 15:54:08,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 15:54:08,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 15:54:08,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 15:54:08,671 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 15:54:08,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 15:54:08,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 15:54:08,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 15:54:08,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 15:54:08,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 15:54:08,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 15:54:08,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 15:54:08,676 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 15:54:08,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 15:54:08,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 15:54:08,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 15:54:08,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 15:54:08,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 15:54:08,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 15:54:08,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 15:54:08,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 15:54:08,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 15:54:08,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 15:54:08,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 15:54:08,679 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 15:54:08,679 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 15:54:09,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 15:54:09,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 15:54:09,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 15:54:09,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 15:54:09,199 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 15:54:09,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2020-12-23 15:54:09,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/90943fb39/c6b5750aea064b219bf693a3402df09e/FLAG4ec7f1185 [2020-12-23 15:54:10,084 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 15:54:10,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2020-12-23 15:54:10,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/90943fb39/c6b5750aea064b219bf693a3402df09e/FLAG4ec7f1185 [2020-12-23 15:54:10,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/90943fb39/c6b5750aea064b219bf693a3402df09e [2020-12-23 15:54:10,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 15:54:10,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 15:54:10,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 15:54:10,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 15:54:10,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 15:54:10,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:54:10" (1/1) ... [2020-12-23 15:54:10,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a0602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:10, skipping insertion in model container [2020-12-23 15:54:10,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 03:54:10" (1/1) ... [2020-12-23 15:54:10,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 15:54:10,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 15:54:10,982 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_BER_test3-1.i[33021,33034] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],StructAccessExpression[IdentifierExpression[~user~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[4],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_hashv~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_j~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_hj_k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[60],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[56],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem37,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem37,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem38,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[#t~mem38,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem39,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[12],StructAccessExpression[IdentifierExpression[#t~mem39,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem40,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[28],StructAccessExpression[IdentifierExpression[#t~mem40,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem41,],base],StructAccessExpression[IdentifierExpression[#t~mem41,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem43,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[48],StructAccessExpression[IdentifierExpression[#t~mem43,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem56,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],StructAccessExpression[IdentifierExpression[#t~mem56,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem57,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem57,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_ha_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~user~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~user~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem69,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem69,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_ha_head~0,],base],StructAccessExpression[IdentifierExpression[~_ha_head~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_new_buckets~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem81,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem81,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem91,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[36],StructAccessExpression[IdentifierExpression[#t~mem91,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt_i~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_hh_nxt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_bkt~0,] left hand side expression in assignment: lhs: VariableLHS[~_he_newbkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_thh~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[~_he_thh~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem117,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem117,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],base],StructAccessExpression[IdentifierExpression[~_he_newbkt~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~_he_thh~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem125,],base],StructAccessExpression[IdentifierExpression[#t~mem125,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem126,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[40],StructAccessExpression[IdentifierExpression[#t~mem126,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem136,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[44],StructAccessExpression[IdentifierExpression[#t~mem136,],offset]]]] left hand side expression in assignment: lhs: VariableLHS[~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,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem188,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem188,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem193,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem193,],offset],IdentifierExpression[#t~mem195,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem199,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem199,],offset],IdentifierExpression[#t~mem201,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~0,],base],StructAccessExpression[IdentifierExpression[~_hd_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem213,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem213,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem216,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem216,],offset]]]] [2020-12-23 15:54:11,172 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_BER_test3-1.i[44590,44603] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 15:54:11,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:54:11,193 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 15:54:11,228 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_BER_test3-1.i[33021,33034] 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,] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem199,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[20],StructAccessExpression[IdentifierExpression[#t~mem199,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem204,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[16],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem204,],offset],IdentifierExpression[#t~mem206,]]]]] left hand side expression in assignment: lhs: VariableLHS[~users~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem210,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[#t~mem210,],offset],IdentifierExpression[#t~mem212,]]]]] left hand side expression in assignment: lhs: VariableLHS[~_hd_bkt~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~_hd_head~0,],base],StructAccessExpression[IdentifierExpression[~_hd_head~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem224,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[32],StructAccessExpression[IdentifierExpression[#t~mem224,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[#t~mem227,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[24],StructAccessExpression[IdentifierExpression[#t~mem227,],offset]]]] [2020-12-23 15:54:11,334 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_BER_test3-1.i[44590,44603] left hand side expression in assignment: lhs: VariableLHS[~user~0,] left hand side expression in assignment: lhs: VariableLHS[~user~0,] [2020-12-23 15:54:11,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 15:54:11,437 INFO L208 MainTranslator]: Completed translation [2020-12-23 15:54:11,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11 WrapperNode [2020-12-23 15:54:11,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 15:54:11,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 15:54:11,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 15:54:11,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 15:54:11,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 15:54:11,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 15:54:11,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 15:54:11,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 15:54:11,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (1/1) ... [2020-12-23 15:54:11,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 15:54:11,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 15:54:11,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 15:54:11,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 15:54:11,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (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 15:54:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 15:54:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 15:54:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 15:54:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 15:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 15:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2020-12-23 15:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 15:54:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 15:54:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 15:54:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 15:54:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 15:54:13,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 15:54:13,990 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2020-12-23 15:54:13,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:54:13 BoogieIcfgContainer [2020-12-23 15:54:13,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 15:54:13,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 15:54:13,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 15:54:13,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 15:54:13,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 03:54:10" (1/3) ... [2020-12-23 15:54:13,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70534627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:54:13, skipping insertion in model container [2020-12-23 15:54:13,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 03:54:11" (2/3) ... [2020-12-23 15:54:14,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70534627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 03:54:13, skipping insertion in model container [2020-12-23 15:54:14,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 03:54:13" (3/3) ... [2020-12-23 15:54:14,001 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2020-12-23 15:54:14,008 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 15:54:14,014 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-23 15:54:14,034 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 15:54:14,064 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 15:54:14,064 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 15:54:14,064 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 15:54:14,064 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 15:54:14,065 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 15:54:14,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 15:54:14,081 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 15:54:14,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 15:54:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-12-23 15:54:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 15:54:14,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:14,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:54:14,125 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 15:54:14,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:14,133 INFO L82 PathProgramCache]: Analyzing trace with hash 239232295, now seen corresponding path program 1 times [2020-12-23 15:54:14,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:14,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386857202] [2020-12-23 15:54:14,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:14,390 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 15:54:14,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386857202] [2020-12-23 15:54:14,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:14,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 15:54:14,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766312053] [2020-12-23 15:54:14,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 15:54:14,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:14,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 15:54:14,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 15:54:14,424 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2020-12-23 15:54:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:14,501 INFO L93 Difference]: Finished difference Result 402 states and 670 transitions. [2020-12-23 15:54:14,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 15:54:14,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-23 15:54:14,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:14,524 INFO L225 Difference]: With dead ends: 402 [2020-12-23 15:54:14,524 INFO L226 Difference]: Without dead ends: 198 [2020-12-23 15:54:14,530 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 15:54:14,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-12-23 15:54:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-12-23 15:54:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-12-23 15:54:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2020-12-23 15:54:14,611 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 9 [2020-12-23 15:54:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:14,611 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2020-12-23 15:54:14,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 15:54:14,611 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2020-12-23 15:54:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 15:54:14,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:14,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 15:54:14,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 15:54:14,613 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 15:54:14,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:14,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1042319138, now seen corresponding path program 1 times [2020-12-23 15:54:14,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:14,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183514463] [2020-12-23 15:54:14,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:14,764 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 15:54:14,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183514463] [2020-12-23 15:54:14,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:14,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:14,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813891989] [2020-12-23 15:54:14,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:14,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:14,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:14,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:14,771 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand 4 states. [2020-12-23 15:54:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:15,330 INFO L93 Difference]: Finished difference Result 445 states and 582 transitions. [2020-12-23 15:54:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:15,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-23 15:54:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:15,333 INFO L225 Difference]: With dead ends: 445 [2020-12-23 15:54:15,333 INFO L226 Difference]: Without dead ends: 337 [2020-12-23 15:54:15,335 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 15:54:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-12-23 15:54:15,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 200. [2020-12-23 15:54:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-12-23 15:54:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2020-12-23 15:54:15,349 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 12 [2020-12-23 15:54:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:15,350 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2020-12-23 15:54:15,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2020-12-23 15:54:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 15:54:15,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:15,353 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] [2020-12-23 15:54:15,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 15:54:15,354 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 15:54:15,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:15,355 INFO L82 PathProgramCache]: Analyzing trace with hash 168111628, now seen corresponding path program 1 times [2020-12-23 15:54:15,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:15,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476986381] [2020-12-23 15:54:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:15,394 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:15,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734975660] [2020-12-23 15:54:15,394 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 15:54:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:15,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:15,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:15,775 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 15:54:15,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476986381] [2020-12-23 15:54:15,776 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:15,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734975660] [2020-12-23 15:54:15,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:15,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:54:15,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22550352] [2020-12-23 15:54:15,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:54:15,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:15,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:54:15,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:54:15,779 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand 3 states. [2020-12-23 15:54:15,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:15,887 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2020-12-23 15:54:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:54:15,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 15:54:15,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:15,890 INFO L225 Difference]: With dead ends: 417 [2020-12-23 15:54:15,890 INFO L226 Difference]: Without dead ends: 221 [2020-12-23 15:54:15,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 15:54:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-12-23 15:54:15,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2020-12-23 15:54:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-12-23 15:54:15,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2020-12-23 15:54:15,905 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 64 [2020-12-23 15:54:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:15,905 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2020-12-23 15:54:15,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:54:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2020-12-23 15:54:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 15:54:15,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:15,908 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] [2020-12-23 15:54:16,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-23 15:54:16,124 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 15:54:16,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:16,125 INFO L82 PathProgramCache]: Analyzing trace with hash 521200010, now seen corresponding path program 1 times [2020-12-23 15:54:16,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:16,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225838125] [2020-12-23 15:54:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:16,147 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:16,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740949377] [2020-12-23 15:54:16,147 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 15:54:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:16,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:16,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:16,477 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 15:54:16,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225838125] [2020-12-23 15:54:16,478 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:16,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740949377] [2020-12-23 15:54:16,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:16,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:16,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354764369] [2020-12-23 15:54:16,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:16,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:16,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:16,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:16,480 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand 4 states. [2020-12-23 15:54:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:16,577 INFO L93 Difference]: Finished difference Result 428 states and 550 transitions. [2020-12-23 15:54:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:16,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-12-23 15:54:16,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:16,579 INFO L225 Difference]: With dead ends: 428 [2020-12-23 15:54:16,579 INFO L226 Difference]: Without dead ends: 212 [2020-12-23 15:54:16,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 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 15:54:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-23 15:54:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2020-12-23 15:54:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-12-23 15:54:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2020-12-23 15:54:16,591 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 64 [2020-12-23 15:54:16,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:16,591 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2020-12-23 15:54:16,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2020-12-23 15:54:16,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-23 15:54:16,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:16,594 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] [2020-12-23 15:54:16,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:16,810 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 15:54:16,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:16,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1012352744, now seen corresponding path program 1 times [2020-12-23 15:54:16,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:16,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069040907] [2020-12-23 15:54:16,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:16,831 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:16,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280189114] [2020-12-23 15:54:16,832 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 15:54:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:17,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:54:17,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:17,176 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 15:54:17,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069040907] [2020-12-23 15:54:17,177 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:17,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280189114] [2020-12-23 15:54:17,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:17,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:54:17,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528481134] [2020-12-23 15:54:17,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:54:17,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:17,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:54:17,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:54:17,179 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand 3 states. [2020-12-23 15:54:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:17,286 INFO L93 Difference]: Finished difference Result 542 states and 683 transitions. [2020-12-23 15:54:17,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:54:17,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-23 15:54:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:17,289 INFO L225 Difference]: With dead ends: 542 [2020-12-23 15:54:17,289 INFO L226 Difference]: Without dead ends: 340 [2020-12-23 15:54:17,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 15:54:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-23 15:54:17,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2020-12-23 15:54:17,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-12-23 15:54:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 393 transitions. [2020-12-23 15:54:17,303 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 393 transitions. Word has length 64 [2020-12-23 15:54:17,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:17,304 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 393 transitions. [2020-12-23 15:54:17,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:54:17,304 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 393 transitions. [2020-12-23 15:54:17,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-23 15:54:17,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:17,307 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] [2020-12-23 15:54:17,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:17,522 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 15:54:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:17,524 INFO L82 PathProgramCache]: Analyzing trace with hash -147792665, now seen corresponding path program 1 times [2020-12-23 15:54:17,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:17,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000988844] [2020-12-23 15:54:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:17,543 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:17,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095247442] [2020-12-23 15:54:17,544 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 15:54:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:17,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:17,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:17,865 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 15:54:17,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000988844] [2020-12-23 15:54:17,865 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:17,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095247442] [2020-12-23 15:54:17,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:17,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:54:17,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073039147] [2020-12-23 15:54:17,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:54:17,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:17,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:54:17,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:54:17,868 INFO L87 Difference]: Start difference. First operand 312 states and 393 transitions. Second operand 3 states. [2020-12-23 15:54:17,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:17,898 INFO L93 Difference]: Finished difference Result 578 states and 737 transitions. [2020-12-23 15:54:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:54:17,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-23 15:54:17,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:17,901 INFO L225 Difference]: With dead ends: 578 [2020-12-23 15:54:17,901 INFO L226 Difference]: Without dead ends: 314 [2020-12-23 15:54:17,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 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 15:54:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-23 15:54:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-12-23 15:54:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-12-23 15:54:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 395 transitions. [2020-12-23 15:54:17,915 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 395 transitions. Word has length 71 [2020-12-23 15:54:17,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:17,915 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 395 transitions. [2020-12-23 15:54:17,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:54:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 395 transitions. [2020-12-23 15:54:17,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-23 15:54:17,918 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:17,918 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] [2020-12-23 15:54:18,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:18,133 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 15:54:18,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:18,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1386404344, now seen corresponding path program 1 times [2020-12-23 15:54:18,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:18,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215399352] [2020-12-23 15:54:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:18,156 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:18,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922127505] [2020-12-23 15:54:18,156 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 15:54:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:18,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-23 15:54:18,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:18,463 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 15:54:18,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215399352] [2020-12-23 15:54:18,464 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:18,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922127505] [2020-12-23 15:54:18,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:18,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-12-23 15:54:18,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381828311] [2020-12-23 15:54:18,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:18,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:18,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:18,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:18,466 INFO L87 Difference]: Start difference. First operand 314 states and 395 transitions. Second operand 4 states. [2020-12-23 15:54:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:18,506 INFO L93 Difference]: Finished difference Result 582 states and 741 transitions. [2020-12-23 15:54:18,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:18,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-12-23 15:54:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:18,509 INFO L225 Difference]: With dead ends: 582 [2020-12-23 15:54:18,509 INFO L226 Difference]: Without dead ends: 316 [2020-12-23 15:54:18,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 15:54:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-12-23 15:54:18,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2020-12-23 15:54:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-23 15:54:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 397 transitions. [2020-12-23 15:54:18,521 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 397 transitions. Word has length 73 [2020-12-23 15:54:18,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:18,522 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 397 transitions. [2020-12-23 15:54:18,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:18,522 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 397 transitions. [2020-12-23 15:54:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-23 15:54:18,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:18,524 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] [2020-12-23 15:54:18,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-23 15:54:18,738 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 15:54:18,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:18,739 INFO L82 PathProgramCache]: Analyzing trace with hash -182577209, now seen corresponding path program 2 times [2020-12-23 15:54:18,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:18,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203644962] [2020-12-23 15:54:18,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:18,756 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:18,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815368502] [2020-12-23 15:54:18,757 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 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 15:54:18,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 15:54:18,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:18,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:18,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:19,058 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-12-23 15:54:19,059 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:54:19,062 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:54:19,064 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 15:54:19,065 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-12-23 15:54:19,080 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-12-23 15:54:19,082 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-23 15:54:19,085 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-23 15:54:19,086 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-23 15:54:19,086 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-12-23 15:54:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 15:54:19,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203644962] [2020-12-23 15:54:19,098 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:19,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815368502] [2020-12-23 15:54:19,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:19,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:19,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763925855] [2020-12-23 15:54:19,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:19,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:19,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:19,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:19,101 INFO L87 Difference]: Start difference. First operand 316 states and 397 transitions. Second operand 4 states. [2020-12-23 15:54:19,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:19,532 INFO L93 Difference]: Finished difference Result 425 states and 541 transitions. [2020-12-23 15:54:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:19,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2020-12-23 15:54:19,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:19,536 INFO L225 Difference]: With dead ends: 425 [2020-12-23 15:54:19,536 INFO L226 Difference]: Without dead ends: 400 [2020-12-23 15:54:19,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 15:54:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-12-23 15:54:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 318. [2020-12-23 15:54:19,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-12-23 15:54:19,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 399 transitions. [2020-12-23 15:54:19,549 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 399 transitions. Word has length 75 [2020-12-23 15:54:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:19,549 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 399 transitions. [2020-12-23 15:54:19,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 399 transitions. [2020-12-23 15:54:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 15:54:19,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:19,552 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 15:54:19,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:19,765 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 15:54:19,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:19,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1878713718, now seen corresponding path program 1 times [2020-12-23 15:54:19,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:19,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957192967] [2020-12-23 15:54:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:19,784 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:19,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758983907] [2020-12-23 15:54:19,785 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 15:54:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:20,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:20,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 15:54:20,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957192967] [2020-12-23 15:54:20,141 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:20,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758983907] [2020-12-23 15:54:20,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:20,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 15:54:20,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732730716] [2020-12-23 15:54:20,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 15:54:20,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:20,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 15:54:20,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 15:54:20,143 INFO L87 Difference]: Start difference. First operand 318 states and 399 transitions. Second operand 3 states. [2020-12-23 15:54:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:20,227 INFO L93 Difference]: Finished difference Result 529 states and 685 transitions. [2020-12-23 15:54:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 15:54:20,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-23 15:54:20,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:20,231 INFO L225 Difference]: With dead ends: 529 [2020-12-23 15:54:20,231 INFO L226 Difference]: Without dead ends: 360 [2020-12-23 15:54:20,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 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 15:54:20,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-23 15:54:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 358. [2020-12-23 15:54:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-12-23 15:54:20,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 439 transitions. [2020-12-23 15:54:20,264 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 439 transitions. Word has length 107 [2020-12-23 15:54:20,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:20,265 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 439 transitions. [2020-12-23 15:54:20,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 15:54:20,265 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 439 transitions. [2020-12-23 15:54:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 15:54:20,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:20,268 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 15:54:20,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:20,472 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 15:54:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:20,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2096048526, now seen corresponding path program 1 times [2020-12-23 15:54:20,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:20,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818878954] [2020-12-23 15:54:20,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:20,491 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:20,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570211370] [2020-12-23 15:54:20,492 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 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 15:54:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:20,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 15:54:20,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 15:54:20,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818878954] [2020-12-23 15:54:20,855 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:20,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570211370] [2020-12-23 15:54:20,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:20,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:20,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656649251] [2020-12-23 15:54:20,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:20,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:20,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:20,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:20,858 INFO L87 Difference]: Start difference. First operand 358 states and 439 transitions. Second operand 4 states. [2020-12-23 15:54:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:20,938 INFO L93 Difference]: Finished difference Result 544 states and 680 transitions. [2020-12-23 15:54:20,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 15:54:20,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2020-12-23 15:54:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:20,941 INFO L225 Difference]: With dead ends: 544 [2020-12-23 15:54:20,941 INFO L226 Difference]: Without dead ends: 335 [2020-12-23 15:54:20,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 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 15:54:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-12-23 15:54:20,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 330. [2020-12-23 15:54:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-12-23 15:54:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 397 transitions. [2020-12-23 15:54:20,959 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 397 transitions. Word has length 107 [2020-12-23 15:54:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:20,959 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 397 transitions. [2020-12-23 15:54:20,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:20,959 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 397 transitions. [2020-12-23 15:54:20,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 15:54:20,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:20,961 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 15:54:21,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 15:54:21,177 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 15:54:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:21,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1213199680, now seen corresponding path program 1 times [2020-12-23 15:54:21,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:21,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677458822] [2020-12-23 15:54:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:21,197 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:21,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310315746] [2020-12-23 15:54:21,197 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 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 15:54:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:21,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-23 15:54:21,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:21,578 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 15:54:21,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677458822] [2020-12-23 15:54:21,579 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:21,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310315746] [2020-12-23 15:54:21,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:21,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-12-23 15:54:21,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790961618] [2020-12-23 15:54:21,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 15:54:21,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:21,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 15:54:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-23 15:54:21,581 INFO L87 Difference]: Start difference. First operand 330 states and 397 transitions. Second operand 5 states. [2020-12-23 15:54:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:21,632 INFO L93 Difference]: Finished difference Result 614 states and 745 transitions. [2020-12-23 15:54:21,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:54:21,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-12-23 15:54:21,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:21,635 INFO L225 Difference]: With dead ends: 614 [2020-12-23 15:54:21,635 INFO L226 Difference]: Without dead ends: 332 [2020-12-23 15:54:21,635 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 15:54:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-12-23 15:54:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2020-12-23 15:54:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-23 15:54:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 399 transitions. [2020-12-23 15:54:21,646 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 399 transitions. Word has length 107 [2020-12-23 15:54:21,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:21,647 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 399 transitions. [2020-12-23 15:54:21,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 15:54:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 399 transitions. [2020-12-23 15:54:21,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-23 15:54:21,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:21,648 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 15:54:21,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:21,863 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 15:54:21,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:21,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711905, now seen corresponding path program 2 times [2020-12-23 15:54:21,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:21,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924378267] [2020-12-23 15:54:21,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:21,881 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:21,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595579725] [2020-12-23 15:54:21,881 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 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 15:54:22,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:54:22,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:22,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 15:54:22,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:22,302 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 15:54:22,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924378267] [2020-12-23 15:54:22,302 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:22,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595579725] [2020-12-23 15:54:22,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:22,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-23 15:54:22,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543893682] [2020-12-23 15:54:22,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 15:54:22,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:22,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 15:54:22,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-23 15:54:22,305 INFO L87 Difference]: Start difference. First operand 332 states and 399 transitions. Second operand 6 states. [2020-12-23 15:54:22,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:22,355 INFO L93 Difference]: Finished difference Result 618 states and 749 transitions. [2020-12-23 15:54:22,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 15:54:22,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2020-12-23 15:54:22,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:22,358 INFO L225 Difference]: With dead ends: 618 [2020-12-23 15:54:22,358 INFO L226 Difference]: Without dead ends: 334 [2020-12-23 15:54:22,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 15:54:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-12-23 15:54:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2020-12-23 15:54:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-12-23 15:54:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 401 transitions. [2020-12-23 15:54:22,369 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 401 transitions. Word has length 109 [2020-12-23 15:54:22,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:22,369 INFO L481 AbstractCegarLoop]: Abstraction has 334 states and 401 transitions. [2020-12-23 15:54:22,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 15:54:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 401 transitions. [2020-12-23 15:54:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-23 15:54:22,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:22,371 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] [2020-12-23 15:54:22,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:22,586 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 15:54:22,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:22,587 INFO L82 PathProgramCache]: Analyzing trace with hash -383989728, now seen corresponding path program 3 times [2020-12-23 15:54:22,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:22,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135934959] [2020-12-23 15:54:22,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:22,651 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:22,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104868561] [2020-12-23 15:54:22,651 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 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 15:54:22,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 15:54:22,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:22,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-23 15:54:22,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-23 15:54:23,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135934959] [2020-12-23 15:54:23,199 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:23,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104868561] [2020-12-23 15:54:23,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 15:54:23,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 15:54:23,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283664090] [2020-12-23 15:54:23,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 15:54:23,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:23,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 15:54:23,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 15:54:23,202 INFO L87 Difference]: Start difference. First operand 334 states and 401 transitions. Second operand 4 states. [2020-12-23 15:54:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:23,479 INFO L93 Difference]: Finished difference Result 708 states and 852 transitions. [2020-12-23 15:54:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 15:54:23,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-12-23 15:54:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:23,482 INFO L225 Difference]: With dead ends: 708 [2020-12-23 15:54:23,482 INFO L226 Difference]: Without dead ends: 422 [2020-12-23 15:54:23,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 109 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 15:54:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-12-23 15:54:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 393. [2020-12-23 15:54:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-12-23 15:54:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 469 transitions. [2020-12-23 15:54:23,499 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 469 transitions. Word has length 111 [2020-12-23 15:54:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:23,499 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 469 transitions. [2020-12-23 15:54:23,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 15:54:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 469 transitions. [2020-12-23 15:54:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-23 15:54:23,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:23,501 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 15:54:23,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-23 15:54:23,716 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 15:54:23,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:23,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1107954682, now seen corresponding path program 1 times [2020-12-23 15:54:23,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:23,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964488037] [2020-12-23 15:54:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:23,731 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:23,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906022771] [2020-12-23 15:54:23,732 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 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 [2020-12-23 15:54:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 15:54:24,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-23 15:54:24,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:24,178 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 15:54:24,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964488037] [2020-12-23 15:54:24,179 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:24,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906022771] [2020-12-23 15:54:24,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:24,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-23 15:54:24,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12414457] [2020-12-23 15:54:24,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 15:54:24,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 15:54:24,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-23 15:54:24,184 INFO L87 Difference]: Start difference. First operand 393 states and 469 transitions. Second operand 7 states. [2020-12-23 15:54:24,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:24,238 INFO L93 Difference]: Finished difference Result 733 states and 881 transitions. [2020-12-23 15:54:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 15:54:24,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-12-23 15:54:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:24,241 INFO L225 Difference]: With dead ends: 733 [2020-12-23 15:54:24,241 INFO L226 Difference]: Without dead ends: 395 [2020-12-23 15:54:24,243 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 15:54:24,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-12-23 15:54:24,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2020-12-23 15:54:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-12-23 15:54:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 471 transitions. [2020-12-23 15:54:24,259 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 471 transitions. Word has length 118 [2020-12-23 15:54:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:24,259 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 471 transitions. [2020-12-23 15:54:24,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 15:54:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 471 transitions. [2020-12-23 15:54:24,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-23 15:54:24,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:24,261 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 15:54:24,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-23 15:54:24,475 INFO L429 AbstractCegarLoop]: === Iteration 15 === [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 15:54:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:24,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1744267321, now seen corresponding path program 2 times [2020-12-23 15:54:24,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:24,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518714013] [2020-12-23 15:54:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:24,492 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:24,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365082314] [2020-12-23 15:54:24,493 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 15:54:26,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 15:54:26,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 15:54:26,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-23 15:54:26,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 15:54:26,546 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-23 15:54:26,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518714013] [2020-12-23 15:54:26,546 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-23 15:54:26,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365082314] [2020-12-23 15:54:26,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-23 15:54:26,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-12-23 15:54:26,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648936704] [2020-12-23 15:54:26,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 15:54:26,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 15:54:26,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 15:54:26,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:54:26,548 INFO L87 Difference]: Start difference. First operand 395 states and 471 transitions. Second operand 8 states. [2020-12-23 15:54:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 15:54:26,609 INFO L93 Difference]: Finished difference Result 736 states and 884 transitions. [2020-12-23 15:54:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 15:54:26,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-12-23 15:54:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 15:54:26,612 INFO L225 Difference]: With dead ends: 736 [2020-12-23 15:54:26,612 INFO L226 Difference]: Without dead ends: 397 [2020-12-23 15:54:26,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-23 15:54:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-12-23 15:54:26,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2020-12-23 15:54:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-12-23 15:54:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 473 transitions. [2020-12-23 15:54:26,627 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 473 transitions. Word has length 120 [2020-12-23 15:54:26,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 15:54:26,628 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 473 transitions. [2020-12-23 15:54:26,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 15:54:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 473 transitions. [2020-12-23 15:54:26,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-12-23 15:54:26,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 15:54:26,629 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 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 15:54:26,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-23 15:54:26,856 INFO L429 AbstractCegarLoop]: === Iteration 16 === [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 15:54:26,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 15:54:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash -994826982, now seen corresponding path program 3 times [2020-12-23 15:54:26,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 15:54:26,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564387471] [2020-12-23 15:54:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 15:54:26,872 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-23 15:54:26,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100001779] [2020-12-23 15:54:26,873 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true