/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 04:15:15,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 04:15:15,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 04:15:15,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-07 04:15:15,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 04:15:15,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 04:15:15,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 04:15:15,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-07 04:15:15,733 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 04:15:15,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 04:15:15,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 04:15:15,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 04:15:15,739 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 04:15:15,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 04:15:15,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 04:15:15,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 04:15:15,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-07 04:15:15,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 04:15:15,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-07 04:15:15,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-07 04:15:15,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 04:15:15,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-07 04:15:15,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 04:15:15,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 04:15:15,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 04:15:15,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:15:15,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 04:15:15,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 04:15:15,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-07 04:15:15,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 04:15:15,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 04:15:15,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-07 04:15:15,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 04:15:15,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 04:15:16,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 04:15:16,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 04:15:16,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 04:15:16,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 04:15:16,171 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 04:15:16,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2021-01-07 04:15:16,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28d7384e1/e796020d93db43059170a6819377b391/FLAG4e984ff27 [2021-01-07 04:15:17,012 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 04:15:17,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2021-01-07 04:15:17,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28d7384e1/e796020d93db43059170a6819377b391/FLAG4e984ff27 [2021-01-07 04:15:17,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/28d7384e1/e796020d93db43059170a6819377b391 [2021-01-07 04:15:17,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 04:15:17,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 04:15:17,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 04:15:17,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 04:15:17,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 04:15:17,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:15:17" (1/1) ... [2021-01-07 04:15:17,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d69d1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:17, skipping insertion in model container [2021-01-07 04:15:17,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 04:15:17" (1/1) ... [2021-01-07 04:15:17,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 04:15:17,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-07 04:15:17,789 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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]]]] [2021-01-07 04:15:17,940 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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,] [2021-01-07 04:15:17,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:15:17,967 INFO L203 MainTranslator]: Completed pre-run [2021-01-07 04:15:18,023 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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]]]] [2021-01-07 04:15:18,207 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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,] [2021-01-07 04:15:18,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 04:15:18,374 INFO L208 MainTranslator]: Completed translation [2021-01-07 04:15:18,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18 WrapperNode [2021-01-07 04:15:18,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 04:15:18,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 04:15:18,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 04:15:18,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 04:15:18,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 04:15:18,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 04:15:18,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 04:15:18,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 04:15:18,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... [2021-01-07 04:15:18,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 04:15:18,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 04:15:18,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 04:15:18,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 04:15:18,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 04:15:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-07 04:15:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 04:15:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 04:15:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-07 04:15:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 04:15:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-01-07 04:15:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-07 04:15:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 04:15:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-07 04:15:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 04:15:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 04:15:21,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 04:15:21,078 INFO L299 CfgBuilder]: Removed 85 assume(true) statements. [2021-01-07 04:15:21,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:15:21 BoogieIcfgContainer [2021-01-07 04:15:21,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 04:15:21,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 04:15:21,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 04:15:21,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 04:15:21,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 04:15:17" (1/3) ... [2021-01-07 04:15:21,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b50ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:15:21, skipping insertion in model container [2021-01-07 04:15:21,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 04:15:18" (2/3) ... [2021-01-07 04:15:21,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b50ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 04:15:21, skipping insertion in model container [2021-01-07 04:15:21,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 04:15:21" (3/3) ... [2021-01-07 04:15:21,091 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-1.i [2021-01-07 04:15:21,099 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 04:15:21,106 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-01-07 04:15:21,130 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-07 04:15:21,165 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 04:15:21,166 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-07 04:15:21,166 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 04:15:21,166 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 04:15:21,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 04:15:21,167 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 04:15:21,167 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 04:15:21,167 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 04:15:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2021-01-07 04:15:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-07 04:15:21,199 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:21,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:15:21,201 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]=== [2021-01-07 04:15:21,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:21,208 INFO L82 PathProgramCache]: Analyzing trace with hash 239232295, now seen corresponding path program 1 times [2021-01-07 04:15:21,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:21,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747225019] [2021-01-07 04:15:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:21,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747225019] [2021-01-07 04:15:21,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:21,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 04:15:21,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604086359] [2021-01-07 04:15:21,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-07 04:15:21,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:21,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-07 04:15:21,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:15:21,437 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2021-01-07 04:15:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:21,487 INFO L93 Difference]: Finished difference Result 402 states and 670 transitions. [2021-01-07 04:15:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-07 04:15:21,489 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-01-07 04:15:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:21,510 INFO L225 Difference]: With dead ends: 402 [2021-01-07 04:15:21,510 INFO L226 Difference]: Without dead ends: 198 [2021-01-07 04:15:21,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-07 04:15:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-01-07 04:15:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-01-07 04:15:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-01-07 04:15:21,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2021-01-07 04:15:21,585 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 9 [2021-01-07 04:15:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:21,585 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2021-01-07 04:15:21,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-07 04:15:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2021-01-07 04:15:21,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-07 04:15:21,586 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:21,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 04:15:21,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 04:15:21,587 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]=== [2021-01-07 04:15:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:21,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1042319138, now seen corresponding path program 1 times [2021-01-07 04:15:21,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:21,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087940463] [2021-01-07 04:15:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:21,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087940463] [2021-01-07 04:15:21,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:21,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:15:21,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837084099] [2021-01-07 04:15:21,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:21,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:21,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:21,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:21,702 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand 4 states. [2021-01-07 04:15:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:22,479 INFO L93 Difference]: Finished difference Result 445 states and 582 transitions. [2021-01-07 04:15:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:15:22,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-01-07 04:15:22,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:22,486 INFO L225 Difference]: With dead ends: 445 [2021-01-07 04:15:22,486 INFO L226 Difference]: Without dead ends: 337 [2021-01-07 04:15:22,488 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 [2021-01-07 04:15:22,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-01-07 04:15:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 200. [2021-01-07 04:15:22,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-01-07 04:15:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 261 transitions. [2021-01-07 04:15:22,523 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 261 transitions. Word has length 12 [2021-01-07 04:15:22,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:22,523 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 261 transitions. [2021-01-07 04:15:22,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:22,523 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 261 transitions. [2021-01-07 04:15:22,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-07 04:15:22,530 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:22,530 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] [2021-01-07 04:15:22,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 04:15:22,531 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]=== [2021-01-07 04:15:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:22,531 INFO L82 PathProgramCache]: Analyzing trace with hash 168111628, now seen corresponding path program 1 times [2021-01-07 04:15:22,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:22,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845644881] [2021-01-07 04:15:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:22,602 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:22,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700402437] [2021-01-07 04:15:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:22,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:22,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:23,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845644881] [2021-01-07 04:15:23,044 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:23,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700402437] [2021-01-07 04:15:23,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:23,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:15:23,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841851248] [2021-01-07 04:15:23,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:15:23,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:23,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:15:23,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:15:23,055 INFO L87 Difference]: Start difference. First operand 200 states and 261 transitions. Second operand 3 states. [2021-01-07 04:15:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:23,176 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2021-01-07 04:15:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:15:23,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-01-07 04:15:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:23,179 INFO L225 Difference]: With dead ends: 417 [2021-01-07 04:15:23,179 INFO L226 Difference]: Without dead ends: 221 [2021-01-07 04:15:23,181 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 [2021-01-07 04:15:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-01-07 04:15:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2021-01-07 04:15:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2021-01-07 04:15:23,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2021-01-07 04:15:23,193 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 64 [2021-01-07 04:15:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:23,194 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2021-01-07 04:15:23,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:15:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2021-01-07 04:15:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-07 04:15:23,197 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:23,197 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] [2021-01-07 04:15:23,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-07 04:15:23,413 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]=== [2021-01-07 04:15:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:23,415 INFO L82 PathProgramCache]: Analyzing trace with hash 521200010, now seen corresponding path program 1 times [2021-01-07 04:15:23,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:23,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040202194] [2021-01-07 04:15:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:23,465 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:23,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104148790] [2021-01-07 04:15:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:23,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:23,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:23,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040202194] [2021-01-07 04:15:23,851 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:23,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104148790] [2021-01-07 04:15:23,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:23,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:15:23,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059943609] [2021-01-07 04:15:23,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:23,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:23,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:23,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:23,855 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand 4 states. [2021-01-07 04:15:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:23,974 INFO L93 Difference]: Finished difference Result 428 states and 550 transitions. [2021-01-07 04:15:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:15:23,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2021-01-07 04:15:23,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:23,978 INFO L225 Difference]: With dead ends: 428 [2021-01-07 04:15:23,978 INFO L226 Difference]: Without dead ends: 212 [2021-01-07 04:15:23,981 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 [2021-01-07 04:15:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-01-07 04:15:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 206. [2021-01-07 04:15:24,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2021-01-07 04:15:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 260 transitions. [2021-01-07 04:15:24,005 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 260 transitions. Word has length 64 [2021-01-07 04:15:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:24,005 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 260 transitions. [2021-01-07 04:15:24,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 260 transitions. [2021-01-07 04:15:24,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-01-07 04:15:24,008 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:24,008 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] [2021-01-07 04:15:24,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:24,225 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]=== [2021-01-07 04:15:24,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:24,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1012352744, now seen corresponding path program 1 times [2021-01-07 04:15:24,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:24,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905303638] [2021-01-07 04:15:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:24,272 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:24,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208213117] [2021-01-07 04:15:24,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:24,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:15:24,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:24,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:24,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905303638] [2021-01-07 04:15:24,627 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:24,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208213117] [2021-01-07 04:15:24,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:24,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:15:24,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405982613] [2021-01-07 04:15:24,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:15:24,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:24,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:15:24,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:15:24,630 INFO L87 Difference]: Start difference. First operand 206 states and 260 transitions. Second operand 3 states. [2021-01-07 04:15:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:24,811 INFO L93 Difference]: Finished difference Result 542 states and 683 transitions. [2021-01-07 04:15:24,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:15:24,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2021-01-07 04:15:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:24,815 INFO L225 Difference]: With dead ends: 542 [2021-01-07 04:15:24,815 INFO L226 Difference]: Without dead ends: 340 [2021-01-07 04:15:24,816 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 [2021-01-07 04:15:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-01-07 04:15:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2021-01-07 04:15:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2021-01-07 04:15:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 393 transitions. [2021-01-07 04:15:24,840 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 393 transitions. Word has length 64 [2021-01-07 04:15:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:24,843 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 393 transitions. [2021-01-07 04:15:24,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:15:24,844 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 393 transitions. [2021-01-07 04:15:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-07 04:15:24,851 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:24,851 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] [2021-01-07 04:15:25,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:25,065 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]=== [2021-01-07 04:15:25,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:25,067 INFO L82 PathProgramCache]: Analyzing trace with hash -147792665, now seen corresponding path program 1 times [2021-01-07 04:15:25,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:25,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846089631] [2021-01-07 04:15:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:25,115 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:25,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174276915] [2021-01-07 04:15:25,116 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 [2021-01-07 04:15:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:25,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:25,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 04:15:25,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846089631] [2021-01-07 04:15:25,544 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:25,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174276915] [2021-01-07 04:15:25,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:25,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:15:25,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614117560] [2021-01-07 04:15:25,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:15:25,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:25,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:15:25,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:15:25,553 INFO L87 Difference]: Start difference. First operand 312 states and 393 transitions. Second operand 3 states. [2021-01-07 04:15:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:25,587 INFO L93 Difference]: Finished difference Result 578 states and 737 transitions. [2021-01-07 04:15:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:15:25,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2021-01-07 04:15:25,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:25,590 INFO L225 Difference]: With dead ends: 578 [2021-01-07 04:15:25,590 INFO L226 Difference]: Without dead ends: 314 [2021-01-07 04:15:25,596 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 [2021-01-07 04:15:25,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-01-07 04:15:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-01-07 04:15:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2021-01-07 04:15:25,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 395 transitions. [2021-01-07 04:15:25,612 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 395 transitions. Word has length 71 [2021-01-07 04:15:25,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:25,612 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 395 transitions. [2021-01-07 04:15:25,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:15:25,612 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 395 transitions. [2021-01-07 04:15:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-01-07 04:15:25,616 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:25,616 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] [2021-01-07 04:15:25,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:25,831 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]=== [2021-01-07 04:15:25,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1386404344, now seen corresponding path program 1 times [2021-01-07 04:15:25,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:25,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814182505] [2021-01-07 04:15:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:25,854 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:25,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [748374325] [2021-01-07 04:15:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:26,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-07 04:15:26,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-01-07 04:15:26,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814182505] [2021-01-07 04:15:26,268 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:26,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748374325] [2021-01-07 04:15:26,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:15:26,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-07 04:15:26,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253422045] [2021-01-07 04:15:26,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:26,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:26,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:26,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:26,271 INFO L87 Difference]: Start difference. First operand 314 states and 395 transitions. Second operand 4 states. [2021-01-07 04:15:26,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:26,327 INFO L93 Difference]: Finished difference Result 582 states and 741 transitions. [2021-01-07 04:15:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:15:26,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2021-01-07 04:15:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:26,330 INFO L225 Difference]: With dead ends: 582 [2021-01-07 04:15:26,330 INFO L226 Difference]: Without dead ends: 316 [2021-01-07 04:15:26,331 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 [2021-01-07 04:15:26,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-01-07 04:15:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-01-07 04:15:26,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-01-07 04:15:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 397 transitions. [2021-01-07 04:15:26,344 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 397 transitions. Word has length 73 [2021-01-07 04:15:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:26,344 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 397 transitions. [2021-01-07 04:15:26,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 397 transitions. [2021-01-07 04:15:26,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-01-07 04:15:26,346 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:26,346 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] [2021-01-07 04:15:26,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-01-07 04:15:26,561 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]=== [2021-01-07 04:15:26,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:26,562 INFO L82 PathProgramCache]: Analyzing trace with hash -182577209, now seen corresponding path program 2 times [2021-01-07 04:15:26,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:26,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908822571] [2021-01-07 04:15:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:26,612 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:26,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265444939] [2021-01-07 04:15:26,612 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 [2021-01-07 04:15:26,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-07 04:15:26,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:15:26,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:26,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:26,908 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 [2021-01-07 04:15:26,910 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:15:26,913 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:15:26,914 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 04:15:26,914 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2021-01-07 04:15:26,932 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 [2021-01-07 04:15:26,934 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 04:15:26,935 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 04:15:26,936 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-07 04:15:26,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2021-01-07 04:15:26,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:15:26,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908822571] [2021-01-07 04:15:26,951 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:26,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265444939] [2021-01-07 04:15:26,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:26,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:15:26,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620913098] [2021-01-07 04:15:26,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:26,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:26,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:26,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:26,954 INFO L87 Difference]: Start difference. First operand 316 states and 397 transitions. Second operand 4 states. [2021-01-07 04:15:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:27,474 INFO L93 Difference]: Finished difference Result 425 states and 541 transitions. [2021-01-07 04:15:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:15:27,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 75 [2021-01-07 04:15:27,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:27,478 INFO L225 Difference]: With dead ends: 425 [2021-01-07 04:15:27,478 INFO L226 Difference]: Without dead ends: 400 [2021-01-07 04:15:27,479 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 [2021-01-07 04:15:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-01-07 04:15:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 318. [2021-01-07 04:15:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-01-07 04:15:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 399 transitions. [2021-01-07 04:15:27,491 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 399 transitions. Word has length 75 [2021-01-07 04:15:27,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:27,492 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 399 transitions. [2021-01-07 04:15:27,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:27,492 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 399 transitions. [2021-01-07 04:15:27,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:15:27,493 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:27,494 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] [2021-01-07 04:15:27,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:27,708 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]=== [2021-01-07 04:15:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:27,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1878713718, now seen corresponding path program 1 times [2021-01-07 04:15:27,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:27,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648824726] [2021-01-07 04:15:27,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:27,729 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:27,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794006075] [2021-01-07 04:15:27,730 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 [2021-01-07 04:15:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:28,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:28,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:15:28,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648824726] [2021-01-07 04:15:28,119 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:28,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794006075] [2021-01-07 04:15:28,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:28,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-07 04:15:28,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268634608] [2021-01-07 04:15:28,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 04:15:28,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:28,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 04:15:28,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 04:15:28,121 INFO L87 Difference]: Start difference. First operand 318 states and 399 transitions. Second operand 3 states. [2021-01-07 04:15:28,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:28,232 INFO L93 Difference]: Finished difference Result 529 states and 685 transitions. [2021-01-07 04:15:28,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 04:15:28,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2021-01-07 04:15:28,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:28,235 INFO L225 Difference]: With dead ends: 529 [2021-01-07 04:15:28,236 INFO L226 Difference]: Without dead ends: 360 [2021-01-07 04:15:28,237 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 [2021-01-07 04:15:28,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-01-07 04:15:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 358. [2021-01-07 04:15:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2021-01-07 04:15:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 439 transitions. [2021-01-07 04:15:28,252 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 439 transitions. Word has length 107 [2021-01-07 04:15:28,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:28,253 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 439 transitions. [2021-01-07 04:15:28,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 04:15:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 439 transitions. [2021-01-07 04:15:28,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:15:28,254 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:28,255 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] [2021-01-07 04:15:28,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:28,469 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]=== [2021-01-07 04:15:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:28,469 INFO L82 PathProgramCache]: Analyzing trace with hash 2096048526, now seen corresponding path program 1 times [2021-01-07 04:15:28,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:28,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168042100] [2021-01-07 04:15:28,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:28,491 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:28,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532983112] [2021-01-07 04:15:28,491 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 [2021-01-07 04:15:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:28,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-07 04:15:28,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-01-07 04:15:28,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168042100] [2021-01-07 04:15:28,886 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:28,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532983112] [2021-01-07 04:15:28,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:28,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:15:28,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928027374] [2021-01-07 04:15:28,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:28,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:28,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:28,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:28,889 INFO L87 Difference]: Start difference. First operand 358 states and 439 transitions. Second operand 4 states. [2021-01-07 04:15:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:28,989 INFO L93 Difference]: Finished difference Result 544 states and 680 transitions. [2021-01-07 04:15:28,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 04:15:28,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2021-01-07 04:15:28,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:28,991 INFO L225 Difference]: With dead ends: 544 [2021-01-07 04:15:28,992 INFO L226 Difference]: Without dead ends: 335 [2021-01-07 04:15:28,992 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 [2021-01-07 04:15:28,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-01-07 04:15:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 330. [2021-01-07 04:15:29,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2021-01-07 04:15:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 397 transitions. [2021-01-07 04:15:29,004 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 397 transitions. Word has length 107 [2021-01-07 04:15:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:29,004 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 397 transitions. [2021-01-07 04:15:29,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 397 transitions. [2021-01-07 04:15:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-01-07 04:15:29,006 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:29,006 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] [2021-01-07 04:15:29,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-01-07 04:15:29,221 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]=== [2021-01-07 04:15:29,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:29,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1213199680, now seen corresponding path program 1 times [2021-01-07 04:15:29,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:29,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111003475] [2021-01-07 04:15:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:29,254 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:29,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [664696202] [2021-01-07 04:15:29,254 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 [2021-01-07 04:15:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:29,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 04:15:29,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-01-07 04:15:29,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111003475] [2021-01-07 04:15:29,647 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:29,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664696202] [2021-01-07 04:15:29,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:15:29,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-01-07 04:15:29,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363129718] [2021-01-07 04:15:29,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 04:15:29,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:29,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 04:15:29,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-07 04:15:29,650 INFO L87 Difference]: Start difference. First operand 330 states and 397 transitions. Second operand 5 states. [2021-01-07 04:15:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:29,714 INFO L93 Difference]: Finished difference Result 614 states and 745 transitions. [2021-01-07 04:15:29,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 04:15:29,715 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2021-01-07 04:15:29,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:29,717 INFO L225 Difference]: With dead ends: 614 [2021-01-07 04:15:29,718 INFO L226 Difference]: Without dead ends: 332 [2021-01-07 04:15:29,719 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 [2021-01-07 04:15:29,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-01-07 04:15:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2021-01-07 04:15:29,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-01-07 04:15:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 399 transitions. [2021-01-07 04:15:29,733 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 399 transitions. Word has length 107 [2021-01-07 04:15:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:29,733 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 399 transitions. [2021-01-07 04:15:29,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 04:15:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 399 transitions. [2021-01-07 04:15:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-07 04:15:29,734 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:29,735 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] [2021-01-07 04:15:29,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:29,943 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]=== [2021-01-07 04:15:29,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:29,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1565711905, now seen corresponding path program 2 times [2021-01-07 04:15:29,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:29,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934676356] [2021-01-07 04:15:29,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:29,966 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:29,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570762266] [2021-01-07 04:15:29,966 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 [2021-01-07 04:15:30,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:15:30,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:15:30,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-07 04:15:30,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-01-07 04:15:30,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934676356] [2021-01-07 04:15:30,481 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:30,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570762266] [2021-01-07 04:15:30,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:15:30,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-07 04:15:30,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658074215] [2021-01-07 04:15:30,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-07 04:15:30,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:30,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-07 04:15:30,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-07 04:15:30,484 INFO L87 Difference]: Start difference. First operand 332 states and 399 transitions. Second operand 6 states. [2021-01-07 04:15:30,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:30,544 INFO L93 Difference]: Finished difference Result 618 states and 749 transitions. [2021-01-07 04:15:30,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 04:15:30,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2021-01-07 04:15:30,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:30,547 INFO L225 Difference]: With dead ends: 618 [2021-01-07 04:15:30,547 INFO L226 Difference]: Without dead ends: 334 [2021-01-07 04:15:30,548 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 [2021-01-07 04:15:30,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-01-07 04:15:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2021-01-07 04:15:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2021-01-07 04:15:30,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 401 transitions. [2021-01-07 04:15:30,559 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 401 transitions. Word has length 109 [2021-01-07 04:15:30,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:30,559 INFO L481 AbstractCegarLoop]: Abstraction has 334 states and 401 transitions. [2021-01-07 04:15:30,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-07 04:15:30,559 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 401 transitions. [2021-01-07 04:15:30,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-01-07 04:15:30,560 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:30,561 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] [2021-01-07 04:15:30,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 04:15:30,775 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]=== [2021-01-07 04:15:30,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:30,776 INFO L82 PathProgramCache]: Analyzing trace with hash -383989728, now seen corresponding path program 3 times [2021-01-07 04:15:30,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:30,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039499038] [2021-01-07 04:15:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:30,805 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:30,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26682352] [2021-01-07 04:15:30,805 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 [2021-01-07 04:15:31,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-01-07 04:15:31,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:15:31,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 9 conjunts are in the unsatisfiable core [2021-01-07 04:15:31,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-01-07 04:15:31,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039499038] [2021-01-07 04:15:31,392 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:31,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26682352] [2021-01-07 04:15:31,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 04:15:31,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 04:15:31,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77806125] [2021-01-07 04:15:31,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 04:15:31,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:31,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 04:15:31,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-07 04:15:31,395 INFO L87 Difference]: Start difference. First operand 334 states and 401 transitions. Second operand 4 states. [2021-01-07 04:15:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:31,775 INFO L93 Difference]: Finished difference Result 708 states and 852 transitions. [2021-01-07 04:15:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 04:15:31,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2021-01-07 04:15:31,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:31,778 INFO L225 Difference]: With dead ends: 708 [2021-01-07 04:15:31,778 INFO L226 Difference]: Without dead ends: 422 [2021-01-07 04:15:31,779 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 [2021-01-07 04:15:31,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-01-07 04:15:31,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 393. [2021-01-07 04:15:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2021-01-07 04:15:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 469 transitions. [2021-01-07 04:15:31,795 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 469 transitions. Word has length 111 [2021-01-07 04:15:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:31,796 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 469 transitions. [2021-01-07 04:15:31,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 04:15:31,796 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 469 transitions. [2021-01-07 04:15:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-01-07 04:15:31,798 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:31,798 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] [2021-01-07 04:15:32,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-01-07 04:15:32,013 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]=== [2021-01-07 04:15:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1107954682, now seen corresponding path program 1 times [2021-01-07 04:15:32,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:32,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834777378] [2021-01-07 04:15:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:32,029 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:32,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041246451] [2021-01-07 04:15:32,030 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 [2021-01-07 04:15:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 04:15:32,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-07 04:15:32,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-01-07 04:15:32,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834777378] [2021-01-07 04:15:32,496 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:32,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041246451] [2021-01-07 04:15:32,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:15:32,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-01-07 04:15:32,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723875880] [2021-01-07 04:15:32,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 04:15:32,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:32,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 04:15:32,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 04:15:32,499 INFO L87 Difference]: Start difference. First operand 393 states and 469 transitions. Second operand 7 states. [2021-01-07 04:15:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:32,570 INFO L93 Difference]: Finished difference Result 733 states and 881 transitions. [2021-01-07 04:15:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 04:15:32,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2021-01-07 04:15:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:32,573 INFO L225 Difference]: With dead ends: 733 [2021-01-07 04:15:32,573 INFO L226 Difference]: Without dead ends: 395 [2021-01-07 04:15:32,574 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 [2021-01-07 04:15:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2021-01-07 04:15:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2021-01-07 04:15:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2021-01-07 04:15:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 471 transitions. [2021-01-07 04:15:32,590 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 471 transitions. Word has length 118 [2021-01-07 04:15:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:32,591 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 471 transitions. [2021-01-07 04:15:32,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 04:15:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 471 transitions. [2021-01-07 04:15:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-01-07 04:15:32,592 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:32,592 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] [2021-01-07 04:15:32,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-01-07 04:15:32,805 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]=== [2021-01-07 04:15:32,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:32,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1744267321, now seen corresponding path program 2 times [2021-01-07 04:15:32,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:32,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190970101] [2021-01-07 04:15:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:32,822 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:32,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389788199] [2021-01-07 04:15:32,822 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 [2021-01-07 04:15:33,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-07 04:15:33,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 04:15:33,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-07 04:15:33,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 04:15:33,355 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-01-07 04:15:33,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190970101] [2021-01-07 04:15:33,356 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-07 04:15:33,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389788199] [2021-01-07 04:15:33,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-07 04:15:33,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-01-07 04:15:33,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65241448] [2021-01-07 04:15:33,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-07 04:15:33,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 04:15:33,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-07 04:15:33,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-07 04:15:33,358 INFO L87 Difference]: Start difference. First operand 395 states and 471 transitions. Second operand 8 states. [2021-01-07 04:15:33,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 04:15:33,433 INFO L93 Difference]: Finished difference Result 736 states and 884 transitions. [2021-01-07 04:15:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-07 04:15:33,434 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2021-01-07 04:15:33,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 04:15:33,436 INFO L225 Difference]: With dead ends: 736 [2021-01-07 04:15:33,437 INFO L226 Difference]: Without dead ends: 397 [2021-01-07 04:15:33,438 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 [2021-01-07 04:15:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-01-07 04:15:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2021-01-07 04:15:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2021-01-07 04:15:33,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 473 transitions. [2021-01-07 04:15:33,454 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 473 transitions. Word has length 120 [2021-01-07 04:15:33,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 04:15:33,455 INFO L481 AbstractCegarLoop]: Abstraction has 397 states and 473 transitions. [2021-01-07 04:15:33,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-07 04:15:33,455 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 473 transitions. [2021-01-07 04:15:33,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-01-07 04:15:33,456 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 04:15:33,456 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] [2021-01-07 04:15:33,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-01-07 04:15:33,671 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]=== [2021-01-07 04:15:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 04:15:33,672 INFO L82 PathProgramCache]: Analyzing trace with hash -994826982, now seen corresponding path program 3 times [2021-01-07 04:15:33,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 04:15:33,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309864857] [2021-01-07 04:15:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 04:15:33,689 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-07 04:15:33,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227597016] [2021-01-07 04:15:33,690 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